ziti/CHANGELOG.md

Release 0.19.9

What's New

• Converged Tunneler/Router (Beta 2)
  • intercept.v1 support (also in ziti-tunnel)
  • support for setting per-service hosting cost/precedence on identity
• Identites and edge routers now support appData, which is tag data consumable by sdks
• Edge Router Policies now expose the isSystem flag for system managed policies
• ziti-tunnel no longer supports tun mode. It has been superceded by tproxy mode

Fixes

• Fix deadlock in ziti-router which would stop new connections from being established after an api session is removed
• Fix id extraction for data plane link latency metrics
• Fix id extraction for ctrl plane link latency metrics
• ziti-tunnel wasn't asking for host.v1/host.v2 configs

Per-service Cost/Precedence

Previously support was adding for setting the default cost and precedence that an identity would use when hosting services. Now, in addition to setting default values, costs and precedences can be set per-service. These are exposed as maps keyed by service. There is one map for costs and another for precedences. There is also CLI support for setting these values.

Example creating an identity:

ziti edge create identity service test2 --default-hosting-cost 10 --default-hosting-precedence failed --service-costs loop=20,echo=30 --service-precedences loop=default,echo=required

When viewing the identity, these values can be seen:

    "id": "-qJRZFqV8t",
    "tags": {},
    "updatedAt": "2021-04-05T16:54:42.763Z",
    "authenticators": {},
    "defaultHostingCost": 10,
    "defaultHostingPrecedence": "failed",
    "envInfo": {},
    "hasApiSession": false,
    "hasEdgeRouterConnection": false,
    "isAdmin": false,
    "isDefaultAdmin": false,
    "isMfaEnabled": false,
    "name": "test2",
    "roleAttributes": null,
    "sdkInfo": {},
    "serviceHostingCosts": {
        "vH3QndzRYt": 20,
        "wAnuyO3PmI": 30
    },
    "serviceHostingPrecedences": {
        "vH3QndzRYt": "default",
        "wAnuyO3PmI": "required"
    },

Note that this mechanism replaces setting cost and precedence via the host.v1/host.v2 config types listenOptions. Those values will be ignored, and may in future be removed from the schemas.

Identity/Edge Router app data

We have an existing tags mechanism, which can be used by system administrators to annotate ziti entities in whatever is useful to them. Tags are an administrator function and are not meant to be visible to SDKs and SDK applications. If an administrator wants to provide custom data for services to the SDK they can use config types and configs for that purpose. Up until now however, there hasn't been a means to annotate identities and edge routers, which are the other two entities visible to SDKs, with data that the SDKs can consume. 0.19.9 introduces appData on identities and edge-routers. appData has the same structure as tags, but is intended to allow administrators to push custom data on identities and edge routers to SDKs. An example use is for tunnelers. The sourceIp can contain template information, which can refer back to the appData for the tunneler's identity.

The CLI supports setting appData on identities and edge routers.

ziti edge create identity service myIdentity --tags office=Regional5,device=Laptop --app-data ip=1.1.1.1,QoS=voip

Release 0.19.8

What's New

• Transwarp beta_1
• Converged Tunneler/Router (Beta)
  • Updates to the host.v1 config type
  • New host.v2 config type
  • New health events

Fixes

• Service Policies with no Posture Checks properly grant access even if an identity has another Service Policies with posture checks
• Removing entities with no referencing entities via attributes no longer panics
• API Sessions and Current Api Session now share the same modeling logic
• API Sessions now have lastActivityAt and cachedLastActivityAt
• Enrolling and unenrolling in MFA sets MFA posture data

Transwarp beta_1

See the Transwarp beta_1 guide here.

Converged Tunneler/Router (Beta)

ziti-router can now run with the tunneler embedded. It has the same capabilities as ziti-tunnel. As ziti-tunnel gains new features, the combined ziti-router/tunnel should maintain feature parity.

Beta Status

This is a beta release. It should be relatively feature complete and bug-free for hosting services but intercept support is still nascent. Some features are likely to be changed based on user feedback.

Os Compatibilty

Like ziti-tunnel, tproxy mode will only work on linux. proxy and host modes should work on all operating systems.

The converged tunneler/router does not support running in tun mode. This mode may be deprecated for ziti-tunnel as well at some point in the future if no advantages over tproxy mode are evident.

Supported configurations

The following configurations are supported:

• ziti-tunneler-client.v1
• ziti-tunneler-server.v1
• host.v1 (updated)
• host.v2 (new)

Support for intercept.v1 will be added in a follow-up release.

Router Identities

When an edge router is marked as being tunneler enabled, a matching identity will be created, of type Router, as well as an edge router policy. The edge router policy ensures that the identity always has access to the edge router. The identity allows the router to be included in service policies, to configure which services will intercepted/hosted.

1. The identity will have the same id and name as the edge router
2. If an identity with the same name as the router already exists, the router create/update will fail
3. When the router name is changed, the identity name will be updated as well.
4. The identity name and type cannot be changed directly. The type may not be changed at all and the name may only be changed by changing the name of the router.
5. The identity may not be deleted except by deleting the router or disabling tunneler support for the identity.
6. When the router is deleted, the accompanying identity and edge router policy will also be deleted
7. If tunneler support is disabled in the router, the accompanying identity and edge router policy will also be deleted.
8. The edge router policy will have the same id as the router and have a name of the form edge-router-<edge-router-id>-system, where <edge-router-id> is replaced by the id of the edge router.
9. The edge router policy is considered a system entity, and cannot be updated and cannot deleted except by the system when the associated router is deleted.

Tunneler Prerequisites

In order for a router instance to host a tunneler, it must meet the following criteria:

1. It must be represented in the model by an edge router
2. The edge router field isTunnelerEnabled must be set to true
3. Edge functionality in the router must be enabled, which means the edge: config section must be present. NOTE: The edge listener does not need to be enabled.
4. The tunnel listener must be enabled.

Making an Edge Router Tunneler enabled

The ziti CLI can be used to enable/disable tunneler support on edge routers. When creating an edge router, the -t flag can be passed in to enable running the tunneler.

ziti edge create edge-router myEdgeRouter --tunneler-enabled

or

ziti edge create edge-router myEdgeRouter -t

An existing edge router can be marked as tunneler enabled as follows:

ziti edge update edge-router myEdgeRouter --tunneler-enabled

or

ziti edge update edge-router myEdgeRouter -t

An existing edge router can be marked as not supporting the tunneler as follows:

ziti edge update edge-router myEdgeRouter -t=false

or

ziti edge update edge-router myEdgeRouter --tunneler-enabled=false

Tunnel listener configuration

listeners:
  - binding: tunnel
    options:
      mode: tproxy # mode to run in. Valid values [tproxy, host, proxy]. Default: tproxy
      svcPollRate: 15s # How often to poll for service changes. Default: 15s
      resolver: udp://127.0.0.1:53 # DNS resolve. Default: udp://127.0.0.1:53 for tproxy, blank for others
      dnsSvcIpRange: 100.64.0.1/10 # cidr to use when assigning IPs to unresolvable intercept hostnames (default "100.64.0.1/10")
      services: # services to intercept in proxy mode. Default: none
        - echo:1977
      lanIf: tun1 # if specified, INPUT rules for intercepted service addresses are assigned to this interface. Defaults to unspecified.

Updates to health checks/health check events

Health checks now have a new trigger option change. This will trigger the action whenever the health state changes from pass to fail or fail to pass.

There's now a new action, send event, which will send a health event to the controller. This will be reported via the recently introduced service events.

The change option is designed to be sued with send event as a way to send events only when the state changes, rather than sending every single pass/fail.

An example configuration:

{
  "address": "localhost",
  "port": 8171,
  "protocol": "tcp",
  "portChecks": [
    {
      "address": "localhost:8171",
      "interval": "5s",
      "timeout": "100ms",
      "actions": [
        {
          "trigger": "change",
          "action": "send event"
        }
      ]
    }
  ]
}

What the service events look like:

{
  "namespace": "service.events",
  "event_type": "service.health_check.failed",
  "service_id": "vH3QndzRYt",
  "count": 2,
  "interval_start_utc": 1616703360,
  "interval_length": 60
}
{
  "namespace": "service.events",
  "event_type": "service.health_check.failed",
  "service_id": "vH3QndzRYt",
  "count": 1,
  "interval_start_utc": 1616703720,
  "interval_length": 60
}
{
  "namespace": "service.events",
  "event_type": "service.health_check.passed",
  "service_id": "vH3QndzRYt",
  "count": 2,
  "interval_start_utc": 1616703720,
  "interval_length": 60
}

Changes to host.v1

The host.v1 config type now support health checks. The configuration is the same for ziti-tunneler-server-v1.

See here: https://github.com/openziti/edge/blob/v0.19.54/tunnel/entities/host.v1.json for the full schema

host.v2

There is a new host configuration, host.v2, which should supercede host.v1. The primary difference from host.v1 is that it supports multiple terminators. This means that when a service is hosted by a router, it can connect to multiple service instances if the service is horizontally scaled, or in a primary/failover setup.

Each terminator definition is the same as a host.v1 configuration, which one exception: listOptions.connectTimeoutSeconds is now listenOptions.connectTimeout and is specified as a duration (5s, 2500ms, etc).

Example:

{
  "terminators": [
    {
      "address": "localhost",
      "port": 8171,
      "protocol": "tcp",
      "listenOptions": {
        "cost": 50,
        "precedence": "required"
      },
      "portChecks": [
        {
          "address": "localhost:8171",
          "interval": "5s",
          "timeout": "100ms",
          "actions": [
            {
              "trigger": "change",
              "action": "send event"
            },
            {
              "trigger": "fail",
              "action": "increase cost 25"
            },
            {
              "trigger": "pass",
              "action": "decrease cost 10"
            }
          ]
        }
      ]
    },
    {
      "address": "localhost",
      "port": 8172,
      "protocol": "tcp",
      "listenOptions": {
        "cost": 51,
        "precedence": "required"
      },
      "portChecks": [
        {
          "address": "localhost:8172",
          "interval": "5s",
          "timeout": "100ms",
          "actions": [
            {
              "trigger": "change",
              "action": "send event"
            },
            {
              "trigger": "fail",
              "action": "increase cost 25"
            },
            {
              "trigger": "pass",
              "action": "decrease cost 10"
            }
          ]
        }
      ]
    }
  ]
}

Release 0.19.7

What's New

• Update to Golang 1.16
• Idle route garbage collection: orphaned routing table entries will be garbage collected. New infrastructure for session confirmation facilitating additional types of garbage collection
• Configurable Xgress dial "dwell time"
• Database tracing support
• Immediately close router ctrl channel connection if fingerprint validation fails
• Immediately close router ctrl channel if no version info is provided
• Ziti Controller Remove All Ziti Controller Remove API Sessions and Edge Sessions API Sessions and Edge Sessions
• Fixed posture check error responses to include only failed checks
• Heartbeat Collection And Batching
• Add Service Request Failures for Posture Checks
• Remove database migration code for versions older than 0.17.1

Idle Route Garbage Collection

The following router configuration stanza controls idle route garbage collection:

forwarder:
  #
  # After how many milliseconds of inactivity is a forwarding table entry considered idle?
  #
  idleSessionTimeout: 60000
  #
  # How frequently will we confirm idle sessions with the controller?
  #
  idleTxInterval: 60000

Xgress Dial Dwell Time

The following router configuration stanza controls Xgress dial "dwell time". You probably don't want to use this unless you're debugging a timing-related issue in the overlay:

forwarder:
  #
  # (Debugging) Xgress dial "dwell time". When dialing, the Xgress framework will wait this number of milliseconds
  # before responding in the affirmative to the controller.
  #
  xgressDialDwellTime: 0

Database Tracing

Enable database tracing using the dbTrace controller configuration directive:

dbTrace: true

This will result in log output that describes the entrance into and exit from transactional functions operating against the underlying database:

[   0.003]    INFO fabric/controller/db.traceUpdateEnter: Enter Update (tx:18) [github.com/openziti/fabric/controller/db.createRoots]
[   0.003]    INFO fabric/controller/db.traceUpdateExit: Exit Update (tx:18) [github.com/openziti/fabric/controller/db.createRoots]
[   0.006]    INFO fabric/controller/db.traceUpdateEnter: Enter Update (tx:19) [github.com/openziti/foundation/storage/boltz.(*migrationManager).Migrate.func1]
[   0.006]    INFO foundation/storage/boltz.(*migrationManager).Migrate.func1: fabric datastore is up to date at version 4
[   0.006]    INFO fabric/controller/db.traceUpdateExit: Exit Update (tx:19) [github.com/openziti/foundation/storage/boltz.(*migrationManager).Migrate.func1]

Ziti Controller Remove All Ziti Controller Remove API Sessions and Edge Sessions API Sessions and Edge Sessions

With the Ziti Controller shutdown, it is now possible to clear out all API Sessions and Edge Sessions that were persisted prior to the controller being stopped. All connecting identities will need to re-authenticate when the controller is restarted.

This command is useful in situations where the number of sessions is large and the database is being copied and/or used for debugging.

Example Command: ziti-controller delete-sessions

Example Output:

[   0.017]    INFO ziti/ziti-controller/subcmd.deleteSessions: {go-version=[go1.16] revision=[local] build-date=[2020-01-01 01:01:01] os=[windows] arch=[amd64] version=[v0.0.0]} removing API Sessions and Edge Sessions from ziti-controller
[   9.469]    INFO ziti/ziti-controller/subcmd.deleteSessions.func2: existing api Sessions: 2785
[  18.274]    INFO ziti/ziti-controller/subcmd.deleteSessions.func2: edge sessions bucket does not exist, skipping, count is: 4035
[  47.104]    INFO ziti/ziti-controller/subcmd.deleteSessions.func3: done removing api Sessions
[  55.866]    INFO ziti/ziti-controller/subcmd.deleteSessions.func3: done removing api session indexes
[  58.325]    INFO ziti/ziti-controller/subcmd.deleteSessions.func3: done removing edge session indexes

Heartbeat Collection And Batching

In previous versions heartbeats from REST API usage and discrete Edge Router connection would all cause writes for the same API Session as they were encountered. In situations where one or more REST API requests were issues and/or one or more Edge Router connections were held by a ZitI Application, multiple simultaneous heartbeats could occur for no apparent benefit and consume disk write I/O.

Heartbeats are now aggregated over a window of time in a cache and written to disk on an interval. The write interval defaults to 90s and the batch size (for write transactions) to 250. Additionally, all heartbeats are flush to disk when the controller is properly shut down.

These settings can be defined in the edge.api section for the Ziti Controller configuration.

Example:

edge:
  api:
    ...
    #(optional, default 90s) Alters how frequently heartbeat and last activity values are persisted
    activityUpdateInterval: 90s
    #(optional, default 250) The number of API Sessions updated for last activity per transaction
    activityUpdateBatchSize: 250
    ...

Add Service Request Failures for Posture Checks

When a Ziti Identity (endpoint) requests a service that is provided via a Service Policy with Posture Checks associated with it, failure to meet the Posture Check requirements results in an error message with a code of INVALID_POSTURE and data elaborating on what Service Policies ids and Posture Check ids failed. Additionally, now the controller will log the most recent requests and provide detailed error output for administrators.

The output will show every Service Policy that was checked for access and every Posture Check that failed. The failed Posture Checks include the Posture Data that was available for the identity and the requirements defined in the Posture Check at the time of the Edge Session request.

New Endpoint: GET /identities/{id}/failed-service-requests

Example Output:

{
    "data": [
        {
            "apiSessionId": "ckmgcom680002cc61hggmcy1n",
            "policyFailures": [
                {
                    "policyId": "eqggCQlBm",
                    "policyName": "alldial",
                    "checks": [
                        {
                            "actualValue": {
                                "hash": "123",
                                "isRunning": true,
                                "signerFingerprints": [
                                    "834f29a60152ce36eb54af37ca5f8ec029eccf01",
                                    "123248b9e8b0dd41938018a871a13dd92bed4456"
                                ]
                            },
                            "expectedValue": {
                                "hashes": [
                                    "3af35956a71c2afefbfe356f86c9139725eeecb15f0de7d98557d4d696c434f51fbc2fa5f7543aef4f5f1afb83caa4a43619973bae52e1f4f92ec10c39b039e8"
                                ],
                                "osType": "Windows",
                                "path": "C:\\Program Files\\TestApp\\test.exe",
                                "signerFingerprint": "834f29a60152ce36eb54af37ca5f8ec029eccf01"
                            },
                            "postureCheckId": "UF9aOqlD3",
                            "postureCheckName": "processCheck",
                            "postureCheckType": "PROCESS"
                        },
                        {
                            "actualValue": {
                                "type": "Windows",
                                "version": "6.0.18364"
                            },
                            "expectedValue": [
                                {
                                    "type": "Windows",
                                    "versions": [
                                        ">=10.0.18364 <=10.0.19041"
                                    ]
                                }
                            ],
                            "postureCheckId": "fK0aOQFD3",
                            "postureCheckName": "osCheck",
                            "postureCheckType": "OS"
                        },
                        {
                            "actualValue": "wrong.com",
                            "expectedValue": [
                                "right.com"
                            ],
                            "postureCheckId": "i2wgOQlBm",
                            "postureCheckName": "domainCheck",
                            "postureCheckType": "DOMAIN"
                        }
                    ]
                }
            ],
            "serviceId": "ll-aOqFDm",
            "serviceName": "test-service",
            "sessionType": "Dial",
            "when": "2021-03-19T09:41:10.117-04:00"
        }
    ],
    "meta": {}
}

Release 0.19.6

What's New

• Service Event Counters
• New log message which shows local (router side) address, including port, when router dials are successful. This allows correlating server side access logs with ziti logs

Service Event Counters

There are new events emitted for service, with statistics for how many dials are successful, failed, timed out, or fail for non-dial related reasons. Stats are aggregated per-minute, similar to usage statistics. They can be enabled in the controller config as follows:

events:
  jsonLogger:
    subscriptions:
      - type: services
    handler:
      type: file
      format: json
      path: /tmp/ziti-events.log

Example of the events JSON output:

{
  "namespace": "service.events",
  "event_type": "service.dial.fail",
  "service_id": "HSfgHzIom",
  "count": 8,
  "interval_start_utc": 1615400160,
  "interval_length": 60
}
{
  "namespace": "service.events",
  "event_type": "service.dial.success",
  "service_id": "HSfgHzIom",
  "count": 29,
  "interval_start_utc": 1615400160,
  "interval_length": 60
}

Event types:

• service.dial.success
• service.dial.fail
• service.dial.timeout
• service.dial.error_other

Release 0.19.5

What's New

• fabric#206 Fix controller deadlock which can happen when links go down
• Use AtomicBitSet for xgress flags. Minimize memory use and contention
• edge router status wasn't getting set online on connect
• ziti-tunnel proxy wasn't working for services without a client config
• Add queue for metrics messages. Add config setting for metrics report interval and message queue size
  • metrics.reportInterval - how often to report metrics to controller. Default: 15s
  • metrics.messageQueueSize - how many metrics message to allow to queue before blocking. Default: 10

Example stanza from router config file:

metrics:
  reportInterval: 15s
  messageQueueSize: 10

Release 0.19.4

What's New

• Link latency probe timeout parameter in router configuration.
• Support configurable timeout on Xgress dial operations. Router terminated services can now specify a short timeout for dial operations.
• Fix 0.19 regression: updating terminator cost/precedence from the sdk was broken
• Fix 0.19 regression: fabric session client id was incorrectly set to edge session token instead of id
• Fix MFA secret length, lowered from 80 bytes to 80 bits
• Ensure that negative lengths in message headers are properly handled
• Fix panic when updating session activity for removed session
• Fix panic when shared router state is used when a router disconnects or reconnects
• Additional garbage collection for parallel route algorithm, removes successful routes created during failed attempts, after final successful attempt.

Link Latency Probe Timeout

Control the link latency probe timeout parameter with the following router configuration syntax:

forwarder:
  #
  # After how many milliseconds does the link latency probe timeout?
  # (default 10000)
  #
  latencyProbeTimeout: 10000

Xgress Dial Timeout

Specify the dial timeout for Xgress dialers using the following syntax:

dialers:
  - binding:            transport
    options:
      connectTimeout:   2s

You will need to specify Xgress options for each dialer binding that you want to use with your configuration.

Release 0.19.3

What's New

• Metric events formatting has changed

Metric Events Changes

Each now gets its own event. Here are two example events:

{
  "metric": "xgress.tx_write_time",
  "metrics": {
    "xgress.tx_write_time.count": 0,
    "xgress.tx_write_time.m1_rate": 0,
    "xgress.tx_write_time.mean": 0,
    "xgress.tx_write_time.p99": 0
  },
  "namespace": "metrics",
  "source_event_id": "62c31ab9-e0ed-48f5-9907-2d2e8c76f393",
  "source_id": "pTF3hzUQI",
  "timestamp": "2021-02-23T19:33:39.017329033Z"
}

{
  "metric": "link.rx.msgsize",
  "metrics": {
    "link.rx.msgsize.count": 3,
    "link.rx.msgsize.mean": 0,
    "link.rx.msgsize.p99": 0
  },
  "namespace": "metrics",
  "source_entity_id": "8VEJ",
  "source_event_id": "62c31ab9-e0ed-48f5-9907-2d2e8c76f393",
  "source_id": "pTF3hzUQI",
  "timestamp": "2021-02-23T19:33:39.017329033Z"
}

Changes of note:

1. The metric name is now listed
2. There's a new source_event_id which can be used to link together all the metrics that were reported at a given time
3. The timestamp format has been changed to match the other event times. Format is: RFC3339Nano
4. Metrics which formerlly had an id in them, such as link and control channel metrics now have the id extracted. The id is stored in the source_entity_id field.

Release 0.19.2

Bug fixes

• Fix edge router synchronization from stopping after workers exit
• Session validation intervals in the edge router were calculated incorrected
• Notes on the configuration values related to session validation were missing from the 0.19 release notes. They have been added in the section called Edge Session Validation

Release 0.19.1

Bug fixes

• Fix v0.18.x - v0.19.x API Session id incompatibility, all API Session and Sessions are deleted during this upgrade
• Fix Edge Router double connect leading to panics during Edge Router REST API rendering

What's New

• Ziti CLI now has 'Let's Encrypt' PKI support to facilitate TLS connections to Controller from BrowZer-based apps that use the ziti-sdk-js.

  • New command to Register a Let's Encrypt account, then create and install a certificate

    Usage:

    ziti pki le create -d domain -p path-to-where-data-is-saved [flags]

    Flags:

    -a, --acmeserver string                             ACME CA hostname (default "https://acme-v02.api.letsencrypt.org/directory")
    -d, --domain string                                 Domain for which Cert is being generated (e.g. me.example.com)
    -e, --email string                                  Email used for registration and recovery contact (default "openziti@netfoundry.io")
    -h, --help                                          help for create
    -k, --keytype EC256|EC384|RSA2048|RSA4096|RSA8192   Key type to use for private keys (default RSA4096)
    -p, --path string                                   Directory to use for storing the data
    -o, --port string                                   Port to listen on for HTTP based ACME challenges (default "80")
    -s, --staging                                       Enable creation of 'staging' Certs (instead of production Certs)
    

  • New command to Display Let's Encrypt certificates and accounts information

    Usage:

    ziti pki le list -p path-to-where-data-is-saved [flags]

    Flags:

    -a, --accounts      Display Account info
    -h, --help          help for list
    -n, --names         Display Names info
    -p, --path string   Directory where data is stored
    

  • New command to Renew a Let's Encrypt certificate

    Usage:

    ziti pki le renew -d domain -p path-to-where-data-is-saved [flags]

    Flags:

    -a, --acmeserver string                             ACME CA hostname (default "https://acme-v02.api.letsencrypt.org/directory")
        --days int                                      The number of days left on a certificate to renew it (default 14)
    -d, --domain string                                 Domain for which Cert is being generated (e.g. me.example.com)
    -e, --email string                                  Email used for registration and recovery contact (default "openziti@netfoundry.io")
    -h, --help                                          help for renew
    -k, --keytype EC256|EC384|RSA2048|RSA4096|RSA8192   Key type to use for private keys (default RSA4096)
    -p, --path string                                   Directory where data is stored
    -r, --reuse-key                                     Used to indicate you want to reuse your current private key for the renewed certificate (default true)
    -s, --staging                                       Enable creation of 'staging' Certs (instead of production Certs)
    

  • New command to Revoke a Let's Encrypt certificate

    Usage:

    ziti pki le revoke -d domain -p path-to-where-data-is-saved [flags]

    Flags:

    -a, --acmeserver string   ACME CA hostname (default "https://acme-v02.api.letsencrypt.org/directory")
    -d, --domain string       Domain for which Cert is being generated (e.g. me.example.com)
    -e, --email string        Email used for registration and recovery contact (default "openziti@netfoundry.io")
    -h, --help                help for revoke
    -p, --path string         Directory where data is stored
    -s, --staging             Enable creation of 'staging' Certs (instead of production Certs)
    

Release 0.19.0

Breaking Changes

• Edge session validation is now handled at the controller, not the edge router
• Routing across the overlay is now handled in parallel, rather than serially. This changes the syntax and semantics of a couple of control plane messages between the controller and the connected routers. See the section below on Parallel Routing for additional details.
• API Session synchronization improvements and pluggability

Bug fixes

• ziti ps now supports router-disconnect and router-reconnect, which disconnects/reconnects the router from the controller. This allows easier testing of various failure states. Requires that --debug-ops is passed to ziti-router on startup.
• Golang SDK hosted service listeners are now properly closed when they receive close notifications
• Golang SDK now recovers if the session is gone
• Golang SDK now stops some go-routines that were previously left running after the SDK context was closed
• Fix session leak caused by using half close when tunneling UDP connections
• Fix connection leak caused by not closing the UDP connection when it's activity timer expires

API Changes

• Fabric Xctrl instances are now notified when the control channel reconnects
• Fabric Xctrl instances may now provide message decoders for the trace infrastructure so that custom messages will be properly displayed in trace logs

Edge Session Validation

Before 0.19, edge sessions (note: network sessions, not API sessions) would be sent to edge routers after they were created. When the edge router received a dial or bind request it would verify that the session was valid, then request the controller to create a fabric session.

This approach has two downsides.

1. There is a race condition where the edge router may receive a dial/bind request before it has received the session from the controller. It thus has to wait awhile before declaring the session invalid.
2. Sessions need to be managed across multiple edge routers, since we don't know where the client will connect. This adds a lot of control channel traffic.

Since the edge router makes a request to the controller anyway, we can pass the session token and fingerprints up to the controller and do the verification there. This allows us to minimize the amount of state the edge router needs to keep synchronized with the controller and removes the race condition.

When an edge controller loses connection to the controller, it needs to verify that its sessions are still valid, in case it missed any session deletion notifications. There are three new settings which control this behavior.

• sessionValidateChunkSize - how many sessions to validate in each request to the controller. Default value: 1000
• sessionValidateMinInterval - minimum time to wait between chuenks of sessions. Default value: 250ms. Format: duration - examples: 10s, 1m, 500ms
• sessionValidateMaxInterval - maximum time to wait between chuenks of sessions. Default value: 1500ms. Format: duration - examples: 10s, 1m, 500ms

Intervals between sending session validation chunks is random, between min and max intervals. This is done to prevent the routers from flooding the controller after a controller restart.

Parallel Routing

Prior to 0.19, the Ziti controller would send a Route message to the terminating router first, to establish terminator endpoint connectivity. If the destination endpoint was unreachable, the entire session setup would be abandoned. If the terminator responded successfully, the controller would then proceed to work through the chain of routers sending Route messages and creating the appropriate forwarding table entries. This all happened sequentially.

In 0.19 route setup for session creation now happens in parallel. The controller sends Route commands to all of the routers in the chain (including the terminating router), and waits for responses and/or times out those responses. If all of the participating routers respond affirmatively within the timeout period, the entire session creation succeeds. If any participating router responds negatively, or the timeout period occurs, the session creation attempt fails, updating configured termination weights. Session creation will retry up to a configured number of attempts. Each attempt will perform a fresh path selection to ensure that failed terminators can be excluded from subsequent attempts.

Configuration of Parallel Routing

The terminationTimeoutSeconds timeout parameter has been removed and will be ignored. The routeTimeoutSeconds controls the timeout for each route attempt.

#network:
  #
  # routeTimeoutSeconds controls the number of seconds the controller will wait for a route attempt to succeed.
  #
  #routeTimeoutSeconds:  10

You'll want to ensure that your participating routers' getSessionTimeout in the Xgress options is configured to a suitably large enough value to support the configured number of routing attempts, at the configured routing attempt timeout. In the router configuration, the getSessionTimeout value is configured for your Xgress listeners like this:

listeners:
  # basic ssh proxy
  - binding:            	proxy
    address:            	tcp:0.0.0.0:1122
    service:            	ssh
    options:
      getSessionTimeout:	120s

The new parallel routing implementation also supports a configurable number of session creation attempts. Prior to 0.19, the number of attempts was hard-coded at 3. In 0.19, the number of retries is controlled by the createSessionRetries parameter, which defaults to 3.

network:
  #
  # createSessionRetries controls the number of retries that will be attempted to create a circuit (and terminate it)
  # for new sessions.
  #
  createSessionRetries: 5

API Session Synchronization

Prior to 0.19 API Sessions were only capable of being synchronized with connecting/reconnecting edge routers in a single manner. In 0.19 and forward improvements allow for multiple strategies to be defined within the same code base. Future releases will be able to introduce configurable and negotiable strategies.

The default strategy from prior releases, now named 'instant', has been improved to fix issues that could arise during edge router reconnects where API Sessions would become invalid on the reconnecting edge router. In addition, the instant strategy now allows for invalid synchronization detection, resync requests, enhanced logging, and synchronization statuses for edge routers.

Edge Router Synchronization Status

The GET /edge-routers list and GET /edge-routers/<id> detail responses now include a syncStatus field. This value is updated during the lifetime of the edge router's connection to the controller and will provide insight on its status.

The possible syncStatus values are as follows:

• "SYNC_NEW" - connection accepted but no strategy actions have been taken
• "SYNC_QUEUED" - connection handed to a strategy and waiting for processing
• "SYNC_HELLO_TIMEOUT" - sync failed due to a hello timeout, requeued for hello
• "SYNC_HELLO" - controller edge hello being sent
• "SYNC_HELLO_WAIT" - hello received from router and queued for processing
• "SYNC_RESYNC_WAIT" - router requested a resync and queued for processing
• "SYNC_IN_PROGRESS" - synchronization processing
• "SYNC_DONE" - synchronization completed, router is now in maintenance updates
• "SYNC_UNKNOWN" - state is unknown, edge router misbehaved, error state
• "SYNC_DISCONNECTED" - strategy was disconnected before finishing, error state

Release 0.18.10

What's New

• Close terminating xgress instances if no start is received with a configurable timeout
  • Timeout is set in the router config under listener/dialer options: sessionStartTimeout Default value: 3m
• Don't add a second shutdown timer if one is already set
• Allow list/updating router forwarding tables if --debug-ops is passed
  • new command ziti ps route <optional target> <session> <src-address> <dest-address>
  • new command ziti ps dump-routes <optional target>
• If an xgress session fails in retransmit, sends fault notification to controller so controller can fix path or remove session, depending on session state

Release 0.18.9

What's New

• Fix PATCH OS Posture Checks clearing data
• Fix ziti-tunnel panic when removing services. edge#517
• ziti-tunnel tproxy now supports --lanIf option to automatically add rules to accept incoming connections for service connections. edge#519
• Fix orphaned ottca enrollments after `DELETE /cas/'
• Add build info output when starting router/controller
• Remove histograms from xgress dataflow path as they were causing bottlenecks

Release 0.18.8

What's New

• Websocket binding in Edge Router to support connections from BrowZer-based apps that use the ziti-sdk-js. Edge Routers support various configurations including a single tls binding, a single ws binding, or having both tls and ws bindings simultaneously. If both binding types are used, they must be specified with different ports.
• Edge Router list for current identity
• Fix terminator PATCH, don't update/clear peer data unless requested
• Fix concurrency related crash in router
• Fix resource leak in fabric: forwarder tables weren't always updated after unroute
• Fix issue that prevented ziti-tunnel from cleaning up on shutdown in some cases. edge#506

Websocket Binding

#   Example Edge Router config snippet (note new `ws` address type):

listeners:
  - binding: edge
    address: ws:0.0.0.0:3021
    options:
      advertise: curt-edge-ws-router:3021
  - binding: edge
    address: tls:0.0.0.0:3022
    options:
      advertise: curt-edge-ws-router:3022

• Fix router memory leak: purge session from forwardTable during unroutTimeout

Edge Router List For Current Identity

A new endpoint has been added which will display the list of Edge Routers an authenticated session has access to via any policy. The records will indicate whether the router is online, its hostname, and its supported protocols. This endpoint will not return Edge Routers that have not completed enrollment. Edge Routers that are offline will not have hostname and supported protocol information.

Endpoint: GET /current-identity/edge-routers

Example Output:

{
    "data": [
        {
            "createdAt": "2021-01-27T20:13:18.599Z",
            "id": "LolSlAQMq",
            "tags": {},
            "updatedAt": "2021-01-27T20:13:19.762Z",
            "hostname": "",
            "isOnline": false,
            "name": "er1",
            "supportedProtocols": {}
        },
        {
            "createdAt": "2021-01-27T20:13:19.308Z",
            "id": "oVzRl6kCq",
            "tags": {},
            "updatedAt": "2021-01-27T20:13:19.901Z",
            "hostname": "127.0.0.1:5002",
            "isOnline": true,
            "name": "er2",
            "supportedProtocols": {
                "tls": "tls://127.0.0.1:5002",
                "wss": "wss://127.0.0.1:5002"
            }
        }
    ],
    "meta": {
        "filterableFields": [
            "id",
            "createdAt",
            "updatedAt",
            "name",
        ],
        "pagination": {
            "limit": 10,
            "offset": 0,
            "totalCount": 2
        }
    }
}

Release 0.18.7

What's New

• Update ziti-tunnel service polling
  • Now uses new api (when available) to skip refreshing services if no services have been changed
  • Polling rate is passed through to sdk, so actual poll rate is now controlled
• Don't panic on router startup, just show error message and exit
• Fix resource leak: go-routine on terminators using the edge_transport binding
• Fix resource leak: retransmission timers for xgress instances not being shutdown when xgress closed
• Control channel metrics now available
• Fix potential deadlock on xgress close
• When closing due to fault notification, wait for data coming from remote to stop, not data from both local and remote, since local writes may never stop, due to retransmission attempts
• Add new config option to router xgressCloseCheckInterval, which dictates for how long data flow from the remote should have stopped before closing xgress after receiving fault
• limit none for Edge API Rest requests is now properly limited to 500 elements on list endpoints
• The HTTP header server is now populated on all responses with ziti-controller/vX.Y.Z

Control Channel Metrics

Note: This feature is only available if both controller and router are on 0.18.7 or higher.

The control channels between the controller and routers now generate metrics, including:

• ctrl.<router id>.latency
• ctrl.<router id>.tx.bytesrate
• ctrl.<router id>.tx.msgrate
• ctrl.<router id>.tx.msgsize
• ctrl.<router id>.rx.bytesrate
• ctrl.<router id>.rx.msgrate
• ctrl.<router id>.rx.msgsize

There is a new controller config file setting:

• ctrlChanLatencyIntervalSeconds which controls how often the latency probe is sent. Default value: 10

Release 0.18.6

What's New

• Fix ziti install terraform-provider-edgecontroller

Release 0.18.5

What's New

• Update go-openapi libraries
• xgress_edge refactor, should fix 'failed to dipsatch to fabric' errors
• Update ziti use command to work with main branch
• MFA Support
• Fix deadlock on session close in router when connection is at capacity
• Fix issue where end of session didn't get sent in some scenarios

MFA Support

Endpoint MFA is available that is based on RFC 4226 (HOTP: An HMAC-Based One-Time Password Algorithm) and RFC 6238 (TOTP: Time-Based One-Time Password Algorithm). These standards are compatible with standard "Authenticator" apps such as Google Authenticator and Authy. MFA is suggested to be used in situations where human operators are involved and additional security is desired.

Restricting Service Access

Services can now have a Posture Check of type MFA that can be created and associated with a Service Policy. Service Policies that are associated with an MFA Posture Check will restrict access to services if a client has not enrolled in MFA and passed an MFA check on each login.

MFA Posture Checks support only the basic Posture Check fields:

• name - a name for the posture check
• typeId - should be "MFA"
• tags - any tags desired for this object
• roleAttributes - role attributes used to select this object from Service Policies

Example:

POST /posture-checks
{
    "name": "Any MFA",
    "typeId": "MFA",
    "roleAttributes": ["mfa"]
}

Admin MFA Management

Admins of the Ziti Edge API can remove MFA from any user. However, they cannot enroll on behalf of the client. The client will have to initiate MFA enrollment via their client.

Endpoints:

• DELETE /identities/<id>/mfa - remove MFA from an identity
• GET /identities - has a new field isMfaEnabled that is true/false based on the identity's MFA enrollment
• GET /identities/<id>/posture-data - now includes a sessionPostureData field which is a map of sessionId -> session posture data (including MFA status)

Example Posture Data:

{
  "mac": ["03092ac3bc69", "2b6df1dc52d9"],
  "domain": "mycorp.com",
  "os": {
    ...
  },
  processes: [
    ...
  ],
  sessionPostureData: {
     "xV1442s": {
        "mfa": {
          "passedMfa": true
        }
     }
  }
}

Client MFA Enrollment

Clients must individually enroll in MFA as the enrollment process includes exchanging a symmetric key. During MFA enrollment the related MFA endpoints will return different data and HTTP status codes based upon the state of MFA enrollment (enrollment not started, enrollment started, enrolled).

The general MFA enrollment flow is:

1. Authenticate as the identity via POST /authenticate
2. Start MFA enrollment via POST /current-identity/mfa
3. Retrieve the MFA provisioning URL or QR code
   • GET /current-identity/mfa
   • GET /current-identity/mfa/qr-code
4. Use the provisioning URL or QR code with an authentication app such as Google Authenticator, Authy, etc.
5. Use a current code from the authenticator to POST /current-identity/mfa/verify with the code in the code field {"code": "someCode"}

MFA Endpoints Overview:

This section is an overview for the endpoints. Each endpoint may return errors depending on in input and MFA status.

• GET /current-identity/mfa - returns the current state of MFA enrollment or 404 Not Found
• POST /current-identity/mfa - initiates MFA enrollment or 409 Conflict
• DELETE /current-identity/mfa - remove MFA enrollment, requires a valid TOTP or recovery code
• GET /current-identity/mfa/recovery-codes - returns the current recovery codes, requires a valid TOTP Code
• POST /current-identity/mfa/recovery-codes - regenerates recovery codes, requires a valid TOTP code
• POST /current-identity/mfa/verify - allows MFA enrollment to be completed, requires a valid TOTP code
• GET /current-identity/mfa/qr-code - returns a QR code for use with QR code scanner, MFA enrollment must be started
• POST /authenticate/mfa - allows MFA authentication checks to be completed, requires a valid TOTP or recovery code

MFA Enrollment Not Started:

• GET /current-identity/mfa - returns HTTP status 404
• POST /current-identity/mfa - start MFA enrollment, 200 Ok
• DELETE /current-identity/mfa - returns 404 Not Found
• GET /current-identity/mfa/recovery-codes - returns 404 Not Found
• POST /current-identity/mfa - returns 404 Not Found
• POST /current-identity/mfa/verify - returns 404 Not Found
• GET /current-identity/mfa/qr-code - returns 404 Not Found

MFA Enrollment Started:

• GET /current-identity/mfa - returns the current MFA enrollment and recovery codes
• POST /current-identity/mfa - returns 409 Conflict
• DELETE /current-identity/mfa - aborts the current enrollment, a blank code may be supplied
• GET /current-identity/mfa/recovery-codes - returns 404 Not Found
• POST /current-identity/mfa - returns HTTP status 409 Conflict
• POST /current-identity/mfa/verify - validates the supplied code
• GET /current-identity/mfa/qr-code - returns a QR code for use with QR code scanner in PNG format

MFA Completed:

• GET /current-identity/mfa - returns the current MFA enrollment, but not recovery codes
• POST /current-identity/mfa - returns 409 Conflict
• DELETE /current-identity/mfa - removes MFA, a valid TOTP or recovery code must be supplied
• GET /current-identity/mfa/recovery-codes - shows the current recovery codes, a valid TOTP code must be supplied
• POST /current-identity/mfa - returns HTTP status 409 Conflict
• POST /current-identity/mfa/verify - returns HTTP status 409 Conflict
• GET /current-identity/mfa/qr-code - returns 404 Not Found

Client MFA Recovery Codes

Client MFA recovery codes are generated during enrollment and can be regenerated at any time with a valid TOTP code. Twenty codes are generated and are one time use only. Generating new codes replaces all existing recovery codes.

To view:

GET /current-identity/mfa/recovery-codes
{
  "code": "123456"
}

To Generate new codes:

POST /current-identity/mfa/recovery-codes
{
  "code": "123456"
}

Authentication

During API Session authentication a new authQuery field is returned. This field will indicate if there are any outstanding authentication Posture Queries that need to be fulfilled before authentication is considered complete.

When MFA authentication is required a field will now appear as an authQuery with the following format:

{
  ...
  "token": "c68a187a-f4af-490c-a9dd-a09076511419",
  "authQueries": [
    ...,
    {
      "typeId": "MFA",
      "provider": "ZITI",
      "httpMethod": "POST",
      "httpUrl": "./authenticate/mfa",
      "minLength": 4,
      "maxLength": 6,
      "format": "alphaNumeric"
    },
    ...
  ]       
}

Release 0.18.4

What's New

• New ziti CLI command ziti ps set-log-level, allows you to set the application wide log level at runtime
• Allow invalid event types in controller config event subscriptions. Instead of failing to start, the controller will emit a warning. This allows us to use uniform configs across controllers which may not all support the same event types.
• Edge routers now have configurable timeouts when looking up API sessions and sessions

Edge Router: Configurable Session Lookup Times

An Edge SDK client will create and api session and session with the controller first, then attempt to use those sessions at an edge router. The controller will push session information to routers as quickly as it can, but clients may still connect to the edge router before the client can. We previously would wait up to 5 seconds for session to arrive before declaring a session invalid, but would not wait for api-sessions.

We can now wait for both api-sessions and sessions. Both timeouts are configurable. They are configured in the router config file under listeners options.

• lookupApiSessionTimeout
  • How long to wait before timing out when looking up api-sessions after client connect. Default 5 seconds.
• lookupSessionTimeout
  • How long to wait before timing out when looking up sessions after client dial/bind. Default 5 seconds.

Example router config file stanza:

listeners:
  - binding: edge
    address: tls:0.0.0.0:6342
    options: 
      advertise: 127.0.0.1:6432
      lookupApiSessionTimeout: 5s
      lookupSessionTimeout: 5s

Release 0.18.3

What's New

• Ziti executables that use JSON logging now emit timestamps that include fractional seconds. Timestamps remain in the RFC3339 format.
• Authentication mechanisms now allow appId and appVersion in sdkInfo
• Ziti executables that use JSON logging now emit timestamps that include fractional seconds. Timestamps remain in the RFC3339 format.
• Improved query performance by caching antlr lexers and parsers. Testing showed 2x-10x performance improvement
• Improve service list time by using indexes get related posture data
• Improved service polling
• Improved service policy enforcement - instead of polling this is now event based, which should result in slower cpu utlization on the controller
• Fixed a bug in service policy PATCH which would trigger when the policy type wasn't sent
• Support agent utilitiles (ziti ps) in ziti-tunnel
• Cleanup ack handler goroutines when links shut down
• Remove the following fabric metrics timers, as they degraded performance while being of low value
  • xgress.ack.handle_time
  • xgress.payload.handle_time
  • xgress.ack_write_time
  • xgress.payload_buffer_time
  • xgress.payload_relay_time
• The check-data-integrity operation may now only run a single instance at a time
  • To start the check, ziti edge db start-check-integrity
  • To check the status of a run ziti edge db check-integrity-status
• The build date in version info spelling has been fixed from builDate to buildDate
• A new metric has been added for timing service list requests services.list
• A bug was fixed in the tunneler which may have lead to leaked connections
• Ziti Edge API configurable HTTP Timeouts
• Add ziti log-format or ziti lf for short, for formating JSON log output as something more human readable
• fabric#151 Add two timeout settings to the controller to configure how long route and dial should wait before timeout
  • terminationTimeoutSeconds - how long the router has to dial the service
  • routeTimeoutSeconds - how long a router has to respond to a route create/update message
• fabric#158 Add a session creation timeout to the router. This controls how long the router will wait for fabric sessions to be created. This includes creating the router and dialing the end service, so the timeout should be at least as long as the controller terminationTimeoutSecondsand routeTimeoutSeconds added together
  • getSessionTimeout is specified in the router config under listeners: options:

Improved Service Polling

There's a new REST endpoint /current-api-session/service-updates, which will return the last time services were changed. If there have been no service updates since the api session was established, the api session create date/time will be returned. This endpoint can be polled to see if services need to be refreshed. This will save network and cpu utilization on the client and controller.

Ziti Edge API configurable HTTP Timeouts

The controller configuration file now supports a httpTimeouts section under edge.api. The section and all of its fields are optional and default to the values of previous versions.

For production environments these values should be tuned for the networks intended userbase. The quality and latency of the underlay between the networks endpoints/routers and controller should be taken into account.

edge:
  ...
  api:
    ...
    httpTimeouts:
      # (optional, default 5s) readTimeoutMs is the maximum duration for reading the entire request, including the body.
      readTimeoutMs: 5000
      # (optional, default 0) readHeaderTimeoutMs is the amount of time allowed to read request headers.
      # The connection's read deadline is reset after reading the headers. If readHeaderTimeoutMs is zero, the value of
      # readTimeoutMs is used. If both are zero, there is no timeout.
      readHeaderTimeoutMs: 0
      # (optional, default 10000) writeTimeoutMs is the maximum duration before timing out writes of the response.
      writeTimeoutMs: 100000
      # (optional, default 5000) idleTimeoutMs is the maximum amount of time to wait for the next request when keep-alives are enabled
      idleTimeoutMs: 5000

Release 0.18.2

What's New

• Default hosting precedence and cost can now be configured for identities
• Health checks can now be configured for the go based tunneler (ziti-tunnel) using server configs
• ziti#177 ziti-tunnel has a new host mode, if you are only hosting services
• Changes to terminators (add/updated/delete/router online/router offline) will now generate events that can be emitted
• fabric and edge session events now contain a timestamp

Setting precedence and cost for tunneler hosted services

When the tunneler hosts services there was previously no way to specify the precedence and cost associated with those services. See Ziti XT documentation for an overview of how precedence and cost relate to HA and load balancing.

There are now two new fields on identity:

• defaultHostingPrecedence - value values are default, required and failed. Defaults to default.
• defaultHostingCost - valid values are between 0 and 65535. Defaults to 0.

When hosting a service via the tunneler, the terminator for the SDK hosted service will be created with the precedence and cost of the identity used by the tunneler.

NOTE: This means all services hosted by an identity will have the same precedence and cost. We'll likely add support for service specific overrides in the future if/when use cases arise which call for it. In the meantime, a work-around is to use multiple identities if you need different values for different services.

CLI Support

The ziti CLI supports setting the default hosting precedence and cost when creating identities

SDK API Change

The GO SDK has a new API method GetCurrentIdentity() (*edge.CurrentIdentity, error) which lets SDK users retrieve the currently logged in identity, including the default hosting precedence and cost. This could be used by other SDK applications which may want to use the fields for the same reason when hosting services.

Tunneler Health Checks

The go tunneler now supports health checks. Support for health checks may be added to other tunnelers (such as ziti-edge-tunnel) in the future, but that is not guaranteed.

Health checks can be configured in the service configuration using the ziti-tunneler-server.v1 config type. Support in the host.v1 config type will be added when support for that config type is added to the go tunneler.

Check Types

The tunneler supports two types of health check.

Port Checks

Port checks look to see if a host/port can be dialed. This is simple check which just ensures that something is listening on a give host/port.

Port checks have the following properties:

• interval - how often the check is performanced
• timeout - how long to wait before declaring the check failed
• address - the address to dial. Should be of the form :. Example: localhost:5432
• actions - an array of actions to perform based on health check results. Actions will be discussed in more detail below

HTTP Checks

Http checks a specific URL. They support the following properties:

• interval - how often the check is performanced
• timeout - how long to wait before declaring the check failed
• url - the url to connect to
• method - the HTTP method to use. Maybe one of GET, POST, PUT or PATCH. Defaults to GET
• body - the body of the HTTP request. Defaults to an empty string
• expectStatus - the HTTP status to expect in the response. Defaults to 200
• expectBody - an optional string to look for in the response body.
• actions - an array of actions to perform based on health check results. Actions will be discussed in more detail below

Health Check Actions

Each health check may specify actions to execute when a health check runs.

Each action may specify:

• trigger - valid values pass or fail. Specifies if the action should run when the check is passing or failing
• consecutiveEvents - specifies if the action should only run after N consecutive passes or fails
• duration - specifies if the action should only run after the check has been passing or failing for some period of time
• action - specifies what to do when the action is run. valid values are:
  • mark healthy - the terminator precedence will be set to the default hosting precedence of the hosting identity
  • mark unhealthy - the terminator precedence will be set to failed
  • increase cost N - the terminator cost will be increased by N. This will only happen while the terminator precedence is not failed. Once the terminator has failed we don't keep increasing cost, otherwise it will likely reach max cost and take a long time to recover after it goes back to healthy.
  • decrease cost N - the terminator cost will be decrease by N to a minimuim. The terminator cost will not go below the hosting identity's default hosting cost

Examples

The following config defines a TCP service which can be reach at port 8171 on localhost. It has a port check defined which runs every 5 seconds, with a timeout of 500 milliseconds. The following actions are defined on the health check:

1. The terminator will be marked failed after the health check has failed 10 times in a row.
2. The terminator cost will be increased by 100 each time the health check fails while the terminator is not in failed state
3. The terminator will be returned to a non-failed state if the health check is healthy for 10 seconds
4. Every time the health check passes the cost will be reduced by 25, until it hits the baseline cost defined by the hosting identity

{
    "protocol" : "tcp",
    "hostname" : "localhost",
    "port" : 8171,
    "portChecks" : [
        {
            "interval" : "5s",
            "timeout" : "500ms",
            "address" : "localhost:8171",
            "actions": [
                {
                    "action": "mark unhealthy",
                    "consecutiveEvents": 10,
                    "trigger": "fail"
                },
                {
                    "action": "increase cost 100",
                    "trigger": "fail"
                },
                {
                    "action": "mark healthy",
                    "duration": "10s",
                    "trigger": "pass"
                },
                {
                    "action": "decrease cost 25",
                    "trigger": "pass"
                }
            ]
        }
    ]
}

ziti-tunnel host command

The ziti-tunnel can now be run in a mode where it will only host services and will not intercept any services.

Ex: ziti-tunnel host -i /path/to/identity.json

Schema Reference

For reference, here is the full, updated ziti-tunneler-server.v1 schema:

{
    "$id": "http://edge.openziti.org/schemas/ziti-tunneler-server.v1.config.json",
    "additionalProperties": false,
    "definitions": {
        "action": {
            "additionalProperties": false,
            "properties": {
                "action": {
                    "pattern": "(mark (un)?healthy|increase cost [0-9]+|decrease cost [0-9]+)",
                    "type": "string"
                },
                "consecutiveEvents": {
                    "maximum": 65535,
                    "minimum": 0,
                    "type": "integer"
                },
                "duration": {
                    "$ref": "#/definitions/duration"
                },
                "trigger": {
                    "enum": [
                        "fail",
                        "pass"
                    ],
                    "type": "string"
                }
            },
            "required": [
                "trigger",
                "action"
            ],
            "type": "object"
        },
        "actionList": {
            "items": {
                "$ref": "#/definitions/action"
            },
            "maxItems": 20,
            "minItems": 1,
            "type": "array"
        },
        "duration": {
            "pattern": "[0-9]+(h|m|s|ms)",
            "type": "string"
        },
        "httpCheck": {
            "additionalProperties": false,
            "properties": {
                "actions": {
                    "$ref": "#/definitions/actionList"
                },
                "body": {
                    "type": "string"
                },
                "expectInBody": {
                    "type": "string"
                },
                "expectStatus": {
                    "maximum": 599,
                    "minimum": 100,
                    "type": "integer"
                },
                "interval": {
                    "$ref": "#/definitions/duration"
                },
                "method": {
                    "$ref": "#/definitions/method"
                },
                "timeout": {
                    "$ref": "#/definitions/duration"
                },
                "url": {
                    "type": "string"
                }
            },
            "required": [
                "interval",
                "timeout",
                "url"
            ],
            "type": "object"
        },
        "httpCheckList": {
            "items": {
                "$ref": "#/definitions/httpCheck"
            },
            "type": "array"
        },
        "method": {
            "enum": [
                "GET",
                "POST",
                "PUT",
                "PATCH"
            ],
            "type": "string"
        },
        "portCheck": {
            "additionalProperties": false,
            "properties": {
                "actions": {
                    "$ref": "#/definitions/actionList"
                },
                "address": {
                    "type": "string"
                },
                "interval": {
                    "$ref": "#/definitions/duration"
                },
                "timeout": {
                    "$ref": "#/definitions/duration"
                }
            },
            "required": [
                "interval",
                "timeout",
                "address"
            ],
            "type": "object"
        },
        "portCheckList": {
            "items": {
                "$ref": "#/definitions/portCheck"
            },
            "type": "array"
        }
    },
    "properties": {
        "hostname": {
            "type": "string"
        },
        "httpChecks": {
            "$ref": "#/definitions/httpCheckList"
        },
        "port": {
            "maximum": 65535,
            "minimum": 0,
            "type": "integer"
        },
        "portChecks": {
            "$ref": "#/definitions/portCheckList"
        },
        "protocol": {
            "enum": [
                "tcp",
                "udp"
            ],
            "type": [
                "string",
                "null"
            ]
        }
    },
    "required": [
        "hostname",
        "port"
    ],
    "type": "object"
}

Terminator Events

Terminator events are now generated and can be found the fabric events/ package along with other fabric events. They can also be emitted in json or plain text to a file or stdout, same as other events. Events are generated when:

• A terminator is created
• A terminator is updated (generally precedence or static cost change)
• A terminator is deleted
• A router goes offline. Every terminator on that router will have an event generated
• A router goes online. Every terminator on that router will have an event generated

A terminator event will have the following properties:

• namespace - will always be fabric.terminators
• event_type - one of: created, updated, deleted, router-online, router-offline
• timestamp - when the event was generated
• service_id - id of the service that the terminator belongs to
• terminator_id - id of the terminator
• router_id - id of the router the terminator is on
• router_onlne - boolean flag indicating if the router is online
• precedence - the router precedence
• static_cost - the static cost of the terminator (managed externally, by admin or sdk)
• dynamic_cost - the dynamic cost of the terminator (managed by the terminator strategy for the service)
• total_terminators - the number of terminators currently existing on the service
• usable_default_terminators - the number of terminators on the service that have precedence default
• usable_required_terminators - the number of terminators on the service that have precedence required and are on an online router

Example: To register for json events

events:
  jsonLogger:
    subscriptions:
       - type: fabric.terminators

Example JSON output:

{
  "namespace": "fabric.terminators",
  "event_type": "updated",
  "timestamp": "2021-01-08T16:26:08.0005535-05:00",
  "service_id": "49Gc41SuL",
  "terminator_id": "y8qR",
  "router_id": "T-8CFqqtB",
  "router_online": true,
  "precedence": "required",
  "static_cost": 1100,
  "dynamic_cost": 0,
  "total_terminators": 1,
  "usable_default_terminators": 1,
  "usable_required_terminators": 0
}

Release 0.18.1

• Improve log output for invalid API Session Tokens used to connect to Edge Routers
• Logs default to no color output
• API Session Certificate Support Added

Logs default to no color output

Logs generated by Ziti components written in Go (Controller, Router, SDK) will no longer output ANSI color control characters by default. Color logs can be enabled by setting in the environment variable PFXLOG_USE_COLOR to any truthy value: 1, t, T, TRUE, true, True, 0, f, F, FALSE, false, False.

API Session Certificate Support Added

All authentication mechanisms can now bootstrap key pairs via an authenticated session using API Session Certificates. These key pairs involve authenticating, preparing an X509 Certificate Signing Request (CSR), and then submitting the CSR for processing. The output is an ephemeral certificate tied to that session that can be used to connect to Edge Routers for session dial/binds.

New Endpoints:

• current-api-session/certificates
  • GET - lists current API Session Certificates
  • POST - create a new API Session Certificate (accepts a JSON payload with a csr field)
• current-api-session/certificates/
  • GET - retrieves a specific API Session Certificate
  • DELETE - removes a specific API Session Certificate

API Session Certificates have a 12hr life span. New certificates can be created before previous ones expire and be used for reconnection.

Release 0.18.0

What's New

• ziti#253 ziti-tunnel enroll should set non-zero exit status if an error occur
• Rewrite of Xgress with the following goals
  • Fix deadlocks at high throughput
  • Fix stalls when some endpoints are slower than others
  • Improve windowing/retransmission by pulling forward some concepts from Michael Quigley's transwarp work
  • Split xgress links into two separate connections, one for data and one for acks
• Allow hosting applications to mark incoming connections as failed. Update go tunneler so when a dial fails for hosted services, the failure gets propagated back to controller
• Streamline edge hosting protocol by allowing router to assign connection ids
• Edge REST query failures should now result in 4xx errors instead of 500 internal server errors
• Fixed bug where listing terminators via ziti edge would fail when terminators referenced pure fabric services

Xgress Rewrite

Overview

This rewrite fixed several deadlocks observed at high throughput. It also tries to ensure that slow clients attached to a router can't block traffic/processing for faster clients. It does this by dropping data for a client if the client isn't handling incoming traffic quickly enough. Dropped payloads will be retransmitted. The new xgress implementation uses similar windowing and retransmission strategies to the upcoming transwarp work.

Backwards Compatability

0.18+ routers will probably work with older router versions, but probably not well. 0.18+ xgress instances expect to get round trip times and receive buffer sizes on ack messages. If they don't get them then retransmission will likely be either too agressive or not aggressive enough.

Mixing 0.18+ routers with older router versions is not recommended without doing more testing first.

Xgress Options Changes

Added

• txQueueSize - Number of payloads that can be queued for processing per client. Default value: 1
• txPortalStartSize - Initial size of send window. Default value: 16Kb
• txPortalMinSize - Smallest allowed send window size. Default value: 16Kb
• txPortalMaxSize - Largest allowed send window size. Default value: 4MB
• txPortalIncreaseThresh - Number of successful aks after which to increase send portal size: Default value: 224
• txPortalIncreaseScale - Send portal will be increased by amount of data sent since last retransmission. This controls how much to scale that amount by. Default value: 1.0
• txPortalRetxThresh - Number of retransmits after which to scale the send window. Default value: 64
• txPortalRetxScale - Amount by which to scale the send window after the retransmission threshold is hit. Default value: 0.75
• txPortalDupAckThresh - Number of duplicates acks after which to scale the send window. Default value: 64
• txPortalDupAckScale - Amount by which to scale the send window after the duplicate ack threshold is hit. Default value: 0.9
• rxBufferSize - Receive buffer size. Default value: 4MB
• retxStartMs - Time after which, if no ack has been received, a payload should be queued for retransmission. Default value: 200ms
• retxScale - Amount by which to scale the retranmission timeout, which is calculated from the round trip time. Default value: 2.0
• retxAddMs - Amount to add to the retransmission timeout after it has been scaled. Default value: 0
• maxCloseWaitMs - Maximum amount of time to wait for queued payloads to be acknowledged/retransmitted after an xgress session has been closed. If queued payloads are all acknowledged before this timeout is hit, the xgress session will be closed sooner. Default value: 30s

REMOVED: The retransmission option is no longer available. Retransmission can't be toggled off anymore as that would lead to lossy connections.

Xgress Metrics Changes

New metrics were introduced as part of the rewrite.

NOTE: Some of these metrics were introduced to try and find places where tuning was required. They may not be interesting or useful in the long term and may be removed in a future release.

The new metrics include:

New Meters

• xgress.dropped_payloads
  • The count and rates payloads being dropped
• xgress.retransmissions
  • The count and rates payloads being retransmitted
• xgress.retransmission_failures
  • The count and rates payloads being retransmitted where the send fails
• xgress.rx.acks
  • The count and rates of acks being received
• xgress.tx.acks
  • The count and rates of acks being sent
• xgress.ack_failures
  • The count and rates of acks being sent where the send fails
• xgress.ack_duplicates
  • The count and rates of duplicate acks received

New Histograms

• xgress.rtt
  • Round trip time statistics aggregated across all xgress instances
• xgress.tx_window_size
  • Local window size statistics aggregated across all xgress instances
• xgress.tx_buffer_size
  • Local send buffer size statistics aggregated across all xgress instances
• xgress.local.rx_buffer_bytes_size
  • Receive buffer size statistics in bytes aggregated across all xgress instances
• xgress.local.rx_buffer_msgs_size
  • Receive buffer size statistics in number of messages aggregated across all xgress instances
• xgress.remote.rx_buffer_size
  • Receive buffer size from remote systems statistics aggregated across all xgress instances
• xgress.tx_buffer_size
  • Receive buffer size from remote systems statistics aggregated across all xgress instances

New Timers

• xgress.tx_write_time
  • Times how long it takes to write xgress payloads from xgress to the endpoint
• xgress.tx_write_time
  • Times how long it takes to write acks to the link
• xgress.payload_buffer_time
  • Times how long it takes to process xgress payloads coming off the link (mostly getting them into the receive buffer)
• xgress.payload_relay_time
  • Times how long it takes to get xgress payloads out of the recieve buffer and queued to be sent

New Gauges

• xgress.blocked_by_local_window
  • Count of how many xgress instances are blocked because the local tranmit buffer size equals or exceeds the window size
• xgress.blocked_by_local_window
  • Count of how many xgress instances are blocked because the remote receive buffer size equals or exceeds the window size
• xgress.tx_unacked_payloads
  • Count of payloads in the transmit buffer
• xgress.tx_unacked_payload_bytes
  • Size in bytes of the transmit buffer

Split Links

The fabric will now create two channels for each link, one for data and the other for acks. When establishing links the dialing side will attach headers indicating the channel type and a shared link ID. If the receiving side doesn't support split links then it will treat both channels as regular links and send both data and acks over both.

If an older router dials a router expecting split links it won't have the link type and will be treated as a regular, non-split link.

Allow SDK Hosting Applications to propagate Dial Failures

The service terminator strategies use dial failures to adjust terminator weights and/or mark terminators as failed. Previously SDK applications didn't have a way to mark a dial as failed. If the SDK was hosting an application, this was generally not a problem. If the application could be reached, it wouldn't want to mark an incoming connection as failed. However, the tunneler is just proxying connections. It wants to be able to reach out to another application when the service is dialed and proxy data. If the dial fails, it wants to be able to notify the controller that the application wasn't reachable. The golang SDK now has the capability.

There is a new API on edge.Listener.

	AcceptEdge() (Conn, error)

The Conn returned here is an edge.Conn (which extends net.Conn). edge.Conn has two new APIs.

	CompleteAcceptSuccess() error
	CompleteAcceptFailed(err error)

If ListenWithOptions is called with the ManualStart: true in the provided options, the connection won't be established until CompleteAcceptSuccess is called. Writing or reading the connection before call that method will have undefined results.

The ziti-tunnel has been updated to use this API, and so should now work correctly with the various terminator strategies.

Edge Hosting Dial Protocol Enhancement

When establishing a new virtual connection to hosted SDK application the router had to execute the following steps:

1. Send a Dial message to the sdk application
2. Receive the dial response, which included the sdk generaetd connection id.
3. Create the router side virtual connection with the new id and register it
4. Create the xgress instance tied to the new connection
5. Now that the xgress is created, send a message to the sdk application letting it now that it can start sending traffic

If the connection id could be established on the router, we could simplify things as follows

1. Create the router side virtual connection with the new id and register it
2. Create the xgress instance tied to the new connection
3. Send the dial mesasge to the sdk with the connection id
4. Receive the response and return the result to the controller

We didn't do this previously because the sdk controls ids for outbound connection. To enable this we have split the 32 bit id range in half. The top half is now reserved for hosted connection ids. This behavior is controlled by the SDK, which requests it when it binds uisng a boolean flag. The new flag is:

    RouterProvidedConnId = 1012

If the bind result from the router has the same flag set to true, then the sdk will expect Dial messages from the router to have a connection id provided in the header keyed with the same 1012.

This means that this feature should be both backwards and forward compatible.

Release 0.17.5

What's New

• Builds have been moved from travis.org to Github Actions

• IDs generated for entities in the Edge no longer use underscores and instead use periods to avoid issues when used as a common name in CSRs

• edge#424 Authenticated, non-admin, clients can query service terminators

• sdk-golang#112 Process checks for Windows are case-insensitive

• The CLI agent now runs over unix sockets and is enabled by default. See doc/ops-agent.md for details in the ziti repository.

• ziti#245 Make timeout used by CLI's internal REST client configurable via cmd line arg

  All ziti edge controller subcommands now support the --timeout=n flag which controls the internal REST-client timeout used when communicating with the Controller. The timeout resolution is in seconds. If this flag is not specified, the default is 5. Prior to this release, the the REST-client timeout was always 2. You now have the opportunity to increase the timeout if necessary (e.g. if large amounts of data are being queried).

  All ziti edge controller subcommands now support the --verbose flag which will cause internal REST-client to emit debugging information concerning HTTP headers, status, raw json response data, and more. You now have the opportunity to see much more information, which could be valuable during trouble-shooting.

Release 0.17.4

Breaking Changes

• Process posture checks now accept process posture responses with signerFingerprints instead of a single singerFingerprint. This renders older versions of the C-SDK (<=0.17.15) and Go-SDK (<=0.14.8) unable to properly respond to process posture checks. Prior to this binaries with digital signatures not in leaf-leading order would fail process posture checks.
• OS posture checks implementations in Ziti SDKs and Ziti Apps must now pass x.y.z semver compliant versions in the version field of posture responses. Failure to do so results failing posture checks. For operating systems that do not have all three x.y.z values, zeros should be used to supply the missing values.

What's New

• edge/#392 Pass AppData message headers
• edge/#394 Posture Checks evaluate to false for existing sessions that lose all checks
• edge/#396 Process checks can incorrectly pass
• edge/#403 Support multiple executable signers signatures per process
• edge/#401 Improve OS checks to support X.Y.Z semver comparisons
• edge/#406 Adds WindowsServer in addition to Windows for server vs desktop os checks

Improve OS checks to support X.Y.Z semver comparisons

OS Posture checks now support matching on x.y.z semver compliant formatting as well a flexible syntax to specify Ranges of versions. A Range is a set of conditions which specify which versions satisfy the range. A singular version can be matched on by simply supplying the version without any operators (e.g. 1.0.0 ).

A condition is composed of an operator and a version. The supported operators are:

• <1.0.0 Less than 1.0.0
• <=1.0.0 Less than or equal to 1.0.0
• >1.0.0 Greater than 1.0.0
• >=1.0.0 Greater than or equal to 1.0.0
• 1.0.0, =1.0.0, ==1.0.0 Equal to 1.0.0
• !1.0.0, !=1.0.0 Not equal to 1.0.0. Excludes version 1.0.0.

Note that spaces between the operator and the version will be gracefully tolerated.

A Range can link multiple Ranges separated by space:

Ranges can be linked by logical AND:

• >1.0.0 <2.0.0 would match between both ranges, so 1.1.1 and 1.8.7 but not 1.0.0 or 2.0.0
• >1.0.0 <3.0.0 !2.0.3 would match every version between 1.0.0 and 3.0.0 except 2.0.3

Ranges can also be linked by logical OR:

• <2.0.0 || >=3.0.0 would match 1.x.x and 3.x.x but not 2.x.x

AND has a higher precedence than OR. It's not possible to use brackets.

Ranges can be combined by both AND and OR

• >1.0.0 <2.0.0 || >3.0.0 !4.2.1 would match 1.2.3, 1.9.9, 3.1.1, but not 4.2.1, 2.1.1

The Ziti Edge API still accepts arrays of versions, as such the arrays are OR'ed between. In addition, the Ziti CLI supports providing version declarations:

ziti edge create posture-check os $postureCheckOsName -o "windows:>=10.0.19041" -a "pc1"

Release 0.17.3

Breaking Changes

• None

What's New

• [edge] Addressed an issue where session type was not taken into account for posture checks

Release 0.17.2

Breaking Changes

• Configuring posture checks with current and previous Ziti App endpoint software will cause them to not be able to connect to services. Updated Ziti Apps will be released in future versions.
• The 'golang' SDK application included and updated Ziti SDK that supports posture checks

What's New

• Posture Check CLI Commands
• Posture Check Enforcement
• edge/#382 Add configuration types that support VoIP, SCTP use cases

Posture Check CLI Commands

The following commands have been added to the ziti CLI:

• ziti edge list posture-checks <flags>
• ziti edge delete posture-check <idOrName> <flags>
• ziti edge update posture-check <type> <flags>
• ziti edge create posture-check <type> <reqValues> <flags>

See the -h usage for more information on each command.

Posture Check Enforcement

This release includes the logic necessary to accept posture responses and notify clients of posture queries necessary to connect to services. Posture data can be submitted via POST /posture-response and can be viewed via GET /identities/<id>/posture-data.

As noted above, configuring posture checks will cause all current Ziti App (any endpoint7 software using a Ziti SDK) to fail the checks as they currently do not submit posture response data. The ability for Ziti Apps to supply this information will be included in a subsequent release.

New configuration types for tunneled services

The intercept.v1 configuration type can be used when defining services that:

• intercept CIDRs and/or multiple addresses
• intercept multiple ports and/or port ranges
• use identity dial
• require source IP spoofing at the hosting tunneler

The host.v1 configuration type enables configuration of hosted services with bind-by-identity and protocol/address/port pass-through of services that use intercept.v1 to intercept multiple addresses.

Release 0.17.0

Breaking CLI Change

• The ziti edge enroll subcommand now supports the --keyAlg=RSA|EC flag which controls the algorithm used to generate the private key of the identity. If this flag is not specified, the default is RSA. Prior to this release, the the algorithm used to generate the private key of the identity was forced to EC. You now have a choice (although RSA usage should be used if you desire utilization of the future Ziti Browser support).

What's New

• TCP half-close edge#368 Implement half-close support

TCP half close support in ziti tunnel

This release implements a more graceful termination of TCP connections proxied over Ziti network. One side of TCP connection can sent TCP FIN to its peer while continuing to receive data from connection. This avoids loss of data that could still be in flight in the network.

Release 0.16.5

Breaking CLI Change

• The ziti edge controller create service and ziti edge controller update service subcommands no longer support the --encryption-optional and --encryption-required flags. Instead, these subcommands now have the --encryption=ON|OFF flag. If this flag is not specified, the default is ON.

What's New

• fix edge#338 configurable IP range for DNS services The IP range for hostname-configured services defaults to 100.64/10, and can be changed with the -d command-line option.
• fix edge#336 Startup Race Condition
• fix api-session and session deletes from ziti CLI
• update ziti-fabric-test loop3
• allow specifying policy semantic from CLI when creating policies
• new eventing features
• Posture Check Configuration API

fix edge#349 Using 'edge_transport' binding on non-encrypted service leads to Dial failure

Event Changes

Event Configuration

Handlers can now be configured for events via the config file. Here is an example configuration:

events:
    jsonLogger:
        subscriptions:
            - type: metrics
              sourceFilter: .*
              metricFilter: .*egress.*m1_rate*
            - type: fabric.sessions
              include:
                - created
            - type: edge.sessions
              include:
                - created
            - type: fabric.usage
        handler:
            type: file
            format: json
            path: /tmp/ziti-events.log

Each section can include any number of event subscriptions and a single handler. The supported event types are:

• metrics
• fabric.sessions
• fabric.usage
• edge.sessions

Event Handlers

There are two new handlers which can be used to output events.

File Handler

Sends events to disk. Supported options:

• type: file
• format: json|plain
• path: Path to the target file
• bufferSize: size of event queue. When this fills up, processes submitting events will block
• maxsizemb: max size of the file before it gets rolled. default is 10MB
• maxbackups: max number of rolling files to keep. default is 0 (keeps all)

Stdout Handler

Sends events to stdout. Supported options:

• type: stdout
• format: json|plain
• bufferSize: size of event queue. When this fills up, processes submitting events will block

Usage Events

There is a new Usage event type which has been derived from the metrics events. This allows handlers to see discrete usage events, rather than a collection of them.

The Usage event looks like:

type UsageEvent struct {
    Namespace        string `json:"namespace"`
    EventType        string `json:"event_type"`
    SourceId         string `json:"source_id"`
    SessionId        string `json:"session_id"`
    Usage            uint64 `json:"usage"`
    IntervalStartUTC int64  `json:"interval_start_utc"`
    IntervalLength   uint64 `json:"interval_length"`
}

Metrics Events

Metrics events can now be filtered. Metrics events processed through the new event framework no longer sending metrics messages directly. Rather, a flattened (and more easily filterable) event type is provided. The new event type looks like:

type MetricsEvent struct {
    Namespace    string
    SourceId     string
    Timestamp    *timestamp.Timestamp
    Tags         map[string]string
    IntMetrics   map[string]int64
    FloatMetrics map[string]float64
    MetricGroup  map[string]string
}

Posture Check Configuration API

Edge API endpoints have been added to configure posture checks. Posture checks not currently enforced. However it is possible for integrations to being developed against the API.

This section contains an overview of the new endpoints. See the OpenAPI 2.0 API definition ( swagger.yml) for complete details.

New Endpoints

• GET /posture-checks - retrieve a list of existing Posture Checks
• POST /posture-checks - create a new Posture Check
• PUT/PATCH /posture-checks/<id> - update an existing Posture Check
• DELETE /posture-checks/<id> - delete an existing Posture Check
• GET /posture-check-types - retrieve a list of existing Posture Check Types
• GET /posture-check-types/<id> - retrieve a an existing Posture Check Type
• GET /identities/<id>/posture-data - retrieve the Posture Data for a specific identity

Modified Endpoints

• GET/POST /service-policies - now accepts/returns field postureCheckRoles and postureCheckRolesDisplay
• PUT/PATCH /service-policies/<id> - now accepts postureCheckRoles

Release 0.16.4

Breaking CLI Change

• The ziti edge enroll and ziti-tunnel enroll subcommands no longer require a --jwt argument. Instead the JWT can be supplied as the first argument. So ziti edge enroll --jwt /path/to/my.jwt would become ziti edge enroll /path/to/my.jwt. For now the --jwt flag is still accepted as well.

Deprecations

• The ziti-enroller command is deprecated and will be removed in a future release. It will now display a DEPRECATION warning when it is run

What's New

• ziti#192 CAs default to 10yr expiration
• Allow specifying edge config file when using ziti-fabric-test loop2
• Add grouping data to streaming metrics, so values can be associated with their source metric
• New WSS underlay to support Edge Router connections from Browser-based webapps using the ziti-sdk-js
• ziti#151 enroll subcommand w/out args should print help
• Fix processing of --configTypes all in ziti edge list services
• Addressable Terminators and the eXtensible Terminator Validation framework
• GO Edge SDK now respects Service.EncryptionRequired setting
• fabric#133 Add Version Information To Hellos
• edge#326 Nested Transaction Deadlock

Config File Changes

The following should be added to controller configuration files when using the Edge components:

terminator:
  validators:
    edge: edge

This config stanza enables validating edge terminators. If this stanza is not added, everything will continue to work, but different Edge identities will be allowed to bind to the same terminator identity, which is generally not a valid state.

SDK API changes

The Context.ListenWithOptions method now takes a ListenOptions which are defined in the ziti package, instead of the edge package.

There's a new Context.DialWithOptions method which takes a DialOptions struct.

Addressable Terminators and Terminator Validation

This release contains two new features related to terminators. The first allows you to connect to a subset of terminators for a service. The second allows developers to plugin validation for terminators with different validation logic per binding type.

Addressable Terminators

Terminators define how network traffic for Ziti services exits the fabric and makes its way to the application providing/hosting the service. Each terminator for a service specifies the following:

1. The router at which traffic terminates
2. The binding, which specifies the Xgress component responsible for providing the connection to the hosting application
3. The address, which the Xgress component can use to create or lookup the connection

There are currently two kinds of termination. Router terminated services make outbound connections to the hosting applications. SDK hosted servers make inbound connections from the SDK to the router.

Now that Ziti supports multiple terminators we may want to be able to connect to a specific hosting application. This can be used to allow a service to cover many endpoints, each of which can be connected to individually. Some common use cases for this might be a peer-to-peer application, like a voip service, or a service like SSH covering multiple machines.

What we don't want in these cases is to have to create a new service for each voip client or each new machine that we want to ssh to. We also want to make sure that if an application is making multiple connections (and thus multiple terminators) for redundancy or load balancing purposes, that we can address the application, rather than an individual terminator.

To this end, terminators now have two new fields:

1. Identity - defines the name by which a terminator can be addressed (along with other terminators using the same identity)
2. IdentitySecret - allows verifying that terminators using the same identity are from the same application.

Notes

1. Identity here may be related to the concept of the Edge Identity, but is not required to be.
2. How IdentitySecret is used to validate a terminator is up to the terminator valiator for the binding. The edge has a terminator validator which uses the client's certs to ensure that all terminators for a given terminator identity belong to the same edge identity.

The identity allows the service to be addressed with that identity.

This can now be used in the fabric by prefixing the service name with the identity, separated by the @ symbol. For example, if a service ssh has a terminator with identity web-server, it could be dialed using web-server@ssh.

The Edge SDK also supports dialing and binding using identity addressing. The Context type now supports a new DialWithOptions method, which can be used to specify an identity.

dialOptions := &ziti.DialOptions{
    Identity:       "555-555-5555",
    ConnectTimeout: 1 * time.Minute,
}
conn, err := app.context.DialWithOptions(app.service, dialOptions)

Context already has a ListenWithOptions, and the ListenOptions now support providing an Identity. Users may also set a flag to automatically set the Identity to the edge identity's name. If an identity is provided, the IdentitySecret will automatically be calculated and passed in as well.

host.listener, err = host.context.ListenWithOptions(service.Name, &ziti.ListenOptions{
    Identity: "555-555-5555",
})

or

host.listener, err = host.context.ListenWithOptions(service.Name, &ziti.ListenOptions{
    BindUsingEdgeIdentity: true,
})

For non-Edge SDK terminators the identity can be provided on the command line when creating the terminator.

Example

There is a simple application in the sdk-golang repository example/call which shows how identity addressing can be used to implement something like a VoIP service.

xvt (eXtensible Termrinator Validation)

The fabric now supports pluggable validators for terminators. Validators implement the following interface:

type Validator interface {
    Validate(tx *bbolt.Tx, terminator Terminator, create bool) error
}

Validators can be registered with the controller on startup. For example, here is how the edge terminator validator is registered:

xtv.RegisterValidator("edge", env.NewEdgeTerminatorValidator(c.AppEnv))

Validators can then be tied to a binding in the config file:

terminator:
  validators:
    edge: edge

In the example above, terminators with the binding edge will use the validator which was registered under the name edge. The binding is the key and the validator name is the value.

Release 0.16.2

• What's New
  • Smart routing fixes
    • Persist Terminator Precedence
    • Terminators and Fixed Link Cost, Incorrect Path Selection
    • If link vanishes during reroute, controller can panic
    • Scale latency metric when used for path costing
    • Services not always getting cleared from cache when terminators are updated
    • Fix service policy denormalization migration
  • sdk-golang#84 Fixes go routine leak that would slowly kill SDK application (i.e. ziti-probe)
  • REST API doc via ReDoc available at https://<host>:<port>/docs

Release 0.16.1

• What's New
  • Metrics Refactoring
    • Support timers in metrics events
    • Convert json file reporter to generic reporter supporting multiple formatters, including json and plain
  • Session Performance Fixes
    • Supported unindexed FK constraints in bbolt
    • Improve API Session and Session creation performance
  • Make enrollment available from the ziti CLI
  • Docker image for ziti-tunnel - Embellish examples and fix entrypoint script to wait for clean up of iptables rules on exit
  • Various Internal Stability & Scale Fixes
    • Edge Controller:
      • Use bbolt batch operations where possible (heartbeat updates, sdk/env info)
      • Stream API Sessions & Session during Edge Router Sync
      • Removal of Panic() calls
    • Edge Router:
      • Support heartbeat interval configuration, default raised from 5s to 60s
  • Ziti-Probe
    • Attempts to retain and reuse API Sessions
    • Attempts to reconnect on disconnection, API Session removal, session removal
    • Improve reconnection strategy
    • Adds version command to ziti-probe
  • Go SDK
    • Removal of Fatal() call
    • Add ability to detect invalid sessions

Release 0.16.0

Overview:

Important Note: This release contains backwards incompatible changes. See below for details.

• End-To-End Encryption Enhancements

  • e2e Service Configuration & Router Termination

• Router Scaling Issues

  • Add worker pools for link and xgress dials

• Model Performance Improvements

  • Denormalize policy links for performance

• Datastore Integrity Checker

  • foundation#107
  • edge#258
  • #163

• Events Framework

  • foundation#116 - Add generic event framework and use it for metrics
  • fabric#106 - Event Streaming
  • edge#229 - Stream Session Events

• Bug Fixes:

  • #152 - Fix ziti-router enroll exit code on failure
  • #156 - Fix display of policies with empty roles lists
  • #169 - Fix delete by ID in Ziti CLI
  • edge#269 - Service Policy types in the bbolt should be 1 and 2, rather than 4 and 5
  • edge#273 - Avoid tun "not pollable" read failures
  • fabric#114 - When egress connect fails, router does not return failure to controller
  • fabric#117 - Xgress setup has a race condition

• Backwards Compatibility

  • The ziti edge snapshot-db command is now ziti edge db snapshot
  • In order to fix fabric#117, the xgress protocol flow had to be updated. This means 0.16+ controllers and routers will not work with older controllers and routers

End-To-End Encryption Enhancements

E2E Encryption Router Termination

A new xgress module has been added specifically for handling Ziti Edge e2e to handle SDK to Router Termination scenarios. Previously, only SDK-to-SDK end-to-end encryption was supported. When e2e encryption is desired for a router terminated service, use the bind value edge_transport when defining the terminator for the service. This value is now the default when using the CLI to create a terminator. If the binding value is omitted when using the REST API directly, it will default to transport - which does not support e2e encryption.

CLI Example (explicit binding):

ziti edge create terminator mytcpservice 002 tcp:my-tcp-service.com:12345 --binding edge_transport

Edge Rest API Example:

POST /terminators
{
    "service": "ZbX9",
    "router": "002",
    "binding": "edge_transport",
    "address": "tcp:my-tcp-service.com:12345"
}

End-to-End Encryption Service Configuration

Edge Services can now be set to require e2e encryption. All Edge Services defined before this version will default to requiring e2e encryption. Existing services will need to have their terminators updated to use edge_transport or update the service to not require e2e encryption.

Create Service Example (encryption required)

POST /services
{
    "name": "my-service",
    "encryptionRequired": true
}

Patch Service Example (encryption required)

Can also be set via PUT.

PATCH /services/<id>
{
    "encryptionRequired": true
}

Create Service CLI (encryption required)

End-to-end encryption defaults to required, no flag needed.

ziti edge create service myservice

Create Service CLI (encryption optional)

ziti edge create service myservice -o

Update Service CLI (set encryption required)

ziti edge update service myservice -e

Update Service CLI (set encryption optional)

ziti edge update service myservice -o

Router Scaling Issues

When scaling Ziti Routers it was possible that numerous requests to complete xgress routes or establish links between routers could block the control plane of a router. This could cause timeouts of other control messages and delay the establishment of new service routes and links. This would be especially noticeable when starting multiple routers at the same time or when a Ziti Controller was restarted with multiple routers already connected.

To alleviate control channel congestion, worker queues and pools have been added to xgress and link dial processing. New options are exposed in the forwarder section of router configuration files to control the queue and worker pool.

The new settings are:

• xgressDialQueueLength
• xgressDialWorkerCount
• linkDialQueueLength
• linkDialWorkerCount

...and are explained in the following example.

Example Router Configuration Section:

forwarder:
  # How frequently does the forwarder probe the link latency. This will ultimately determine the resolution of the
  # responsiveness available to smart routing. This resolution comes at the expense of bandwidth utilization for the
  # probes, control plane utilization, and CPU utilization processing the results.
  #
  latencyProbeInterval: 1000
  # How many xgress dials can be queued for processing by the xgress dial workers. An xgress dial occurs
  # for services that have a terminator egress specified with an xgress binding (e.g. transport)
  # (minimum 1, max 10000, default 1000)
  xgressDialQueueLength: 1000
  # The number of xgress dial workers used to process the xgress dial queue.
  # (minimum 1, max 10000, default 10)
  xgressDialWorkerCount: 10
  # How many link dials can be queued for processing by the link dial workers. An link dial occurs
  # when a router is notified of a new router by the controller.
  # (minimum 1, max 10000, default 1000)
  linkDialQueueLength: 1000
  # The number of link dial workers used to process the link dial queue.
  # (minimum 1, max 10000, default 10)
  linkDialWorkerCount: 10

Model Performance Improvements

Policy relationships are now stored in a denormalized fashion. This means that checking if an entity is tied to another entity via a policy is now a direct lookup, and much faster. This means that the Ziti controller should scale very well in cases where we have many identities, services and/or edge routers. Performance was tested against the APIs used by the SDKs.

See for more detail:

• Denormalized Policies
• Characterization (Pure Model Tests)

Data Integrity Checking Framework

The bbolt datastore used by Ziti provides simple key/value storage with nesting. Ziti has implemented some basic relational constructs on top of bbolt, such as indexed values, foreign key indexes, many to many collections and reference counted collections (for policy denormalization). This release adds a data integrity checking framework which allows us to verify that constraint assumptions are valid, and allows fixing issues when they are found (if possible). This work was done in part to validate that the policy denormalization code is working correctly, and to provide a rememdy if issues are found.

There are two new REST APIs available

• GET /database/check-data-integrity
  • https://github.com/openziti/edge/blob/master/specs/swagger.yml#L2916
• POST /database/fix-data-integrity
  • https://github.com/openziti/edge/blob/master/specs/swagger.yml#L2930

These APIs can be used from the ziti CLI.

• ziti edge db check-integrity - to report on data integrity issues
• ziti edge db check-integrity -f - to report on data integrity issues and attempt to fix any that are found

Events Framework

Ziti now has a shared events framework used across projects. Events are used internally and can be used by users to write components which plug into Ziti and react to events (or make them available externally).

Each project which exposes events will have a top-level events package where you can find registration hooks for all exposed events in the project

Current Event Types

• foundation
  • metrics events
• fabric
  • fabric session events (session created, session deleted, session path changed)
  • trace events
• edge
  • NEW edge session events (session created, session deleted)
    • the session event created includes sessionId, session token, API sessionId and identity id
    • the session deleted event includes sessionId and session token

NOTE: The clientId on fabric session events is the edge session token for fabric sessions created from the edge

Release 0.15.3

• What's New:
  • Add example docker compose for ziti-tunnel

Release 0.15.2

• What's New:

  • #140 - Allow logging JSON request for Ziti CLI
  • #148 - Show isOnline in ziti edge list edge-routers
  • #144 - Allow ziti-fabric list to use queries. Default to true limit none

• Bug Fixes:

  • #142 - fix CLI ca create not defaulting identity roles
  • #146 - Export edge router JWT fails sometimes when there are more than 10 edge routers
  • #147 - Fix paging output when using 'limit none'
  • edge#243 - Session creation only returns 10 edge routers
  • edge#245 - fingerprint calculation changed from 0.14 to 0.15. Ensure 0.15 routers can work with 0.14 controllers
  • edge#248 - Edge Router Hello can time out on slow networks with many links to establish
  • foundation#103 - Fix config file env injection for lists

Release 0.15.1

• What's New: No new functionality introduced.

• Bug fixes

  • #129 - minor issue with ziti-tunnel enroll outputting the success message at ERROR level
  • #131 - issues w/ creating identities, CAs and validating CAs
  • #133 - fix service lookup by name when creating service edge router policies
  • edge#191 - updating self password via CLI would error with 404 not found
  • edge#231 - identities missing enrollment expiresAt property
  • edge#237 - Policy Advisor CLI is failing because common routers IsOnline value is missing
  • edge#233 - REST API Errors should be application/json if possible
  • edge#240 - listing specs results in a 404

Release 0.15.0

Ziti 0.15.0 includes the following:

• The ability to invoke a database snapshot/backup
  • Create fabric mgmt API to request database snapshot/backup be created
  • Add snapshot db REST API
• Removal of deprecated code/migrations
  • Remove postgres store code including migrations
  • Remove deprecated AppWan and Clusters - These have been replaced by service policies and service edge router policies respectively
• Edge Routers are now a subtype of Fabric Routers * see Unverified Edge Routers Cannot Be Used For Terminators
• Fabric services and routers now have names
  • see Add name to service and router
• cosmetic changes to the ziti-enroller binary
• cosmetic changes to the ziti-tunnel binary when running the enroll subcommand
• Memory leak remediation in the PayloadBuffer subsystem. Corrects unbounded memory growth in ziti-router.
• Edge REST API Enhancements
  • OpenApi 2.0/Swagger
  • Changes to support Fabric REST API

Removal of deprecated code

The code to migrate a Ziti instance from pre-0.9 releases has been removed. If you want to migrate from a pre-0.9 version you should first update to 0.14.12, then to new versions.

Database Snapshots

Database snapshots can now be triggered in a variety of ways to cause the creation of a dabase backup/snapshot. This can be done from the ziti-fabric CLI, the ziti CLI and the REST API

$ ziti-fabric snapshot-db
$ ziti edge snapshot-db

The REST API is available by POSTing to /edge/v1/database/snapshot. This ability is only available to administrators.

The snapshot will be a copy of the database file created within a bolt transaction. The file name will have the data and time appended to it. Snapshotting can be done at most once per minute.

Edge Routers/Fabric Router subtyping

Previously edge routers and fabric routers were closely related, but weren't actually the same entity. When an edge router was created, there was no corresponding fabric router until the edge router had been succesfully enrolled.

Now, edge routers are a type of fabric router. When an edge router is created, it will be visible as a fabric router with no fingerprint. This means that the corresponding router application won't be able to connect until enrollment is complete.

This simplifies some things, including allowing adding terminators to an edge router before enrollment is complete.

Fabric Router and Service Names

Previously fabric routers and services only had ids, which were assumed to be something user friendly. Now they also have a name. If no name is provided, the id will be used for the name as well. This was done primarily so that we have consistency between the fabric and the edge. Now when viewing a service or router you can be sure to find the label in the same place.

Edge REST API Enhancements

The v0.15.0 brings in new Edge REST API changes that are being made in preparation for future enhancements. Please read these changes carefully and adopt new patterns to avoid future incompatibility issues.

OpenApi 2.0/Swagger

The REST presentation of the Edge REST API is now fully generated from the Open API 2.0/Swagger specification in edge/spec. The the generated code is in edge/rest_model, edge/rest_server, and edge_rest_client. The code is generated by installing go-swagger, currently at version 0.24.0.

The generated code introduces a few changes that may impact clients:

• content-type and accept headers are now meaningful and important
• enrollment endpoints can return JSON if JSON is explicitly set in accept headers
• API input validation errors
• various entity ref bugs
• standardization of id properties

Content Type / Accept Headers

For content-type and accept headers, if accept is not being set, clients usually send an accept of */* - accepting anything. If so, the Edge REST API will continue to return content-types that are the same as previous versions. However, non-JSON responses from enrollment endpoints are now deprecated.

If a client is setting the accept header to anything other than application/json for most endpoints, the API will return errors stating the that the content types are not acceptable.

API Input Validation

API input validation is now handled by the Open API libraries and go-swagger generated code. The error formats returned are largely the same. However validations errors now all return the same outer error and set the cause error properly. Prior to this change errors were handled in an inconsistent manner.

Entity Ref Bugs

Various entity references were fixed where URLs were pointing to the wrong or invalid API URLs.

Id Properties

Id properties are now fully typed: Id, in API request/responses.

Entities affected:

• config
  • type to configTypeid
• identity service config
  • service to serviceId
  • config to configId

IdentityTypeId references were not updated as they are slated for removal and are now deprecated. This includes /identity-type and associated /identity properties for create/update/patch operations.

Changes to support Fabric REST API

The following changes were done to support the future Fabric REST API

• Edge REST API base moved to /edge/v1
• apiVersions was introduced to GET /versions
• move away from UUID formats for ids to shortIds

Base Path

The Edge REST API now has a base path of edge/v1. The previous base path, /, is now deprecated but remains active till a later release. This move is to create room for the Fabric REST API to take over the root path and allow other components to register APIs.

API Versions

For now the GET /versions functionality is handled by the Edge REST API but will be subsumed by a future Fabric REST API.

The GET /versions now reports version information in a map structure such that future REST APIs, as they are introduced, can register supported versions. It is the goal of the Ziti REST APIs to support multiple API versions for backwards comparability.

Example GET /versions response:

{
    "data": {
        "apiVersions": {
            "edge": {
                "v1": {
                    "path": "/edge/v1"
                }
            }
        },
        "buildDate": "2020-06-11 16:03:13",
        "revision": "95e78d4bc64b",
        "runtimeVersion": "go1.14.3",
        "version": "v0.15.0"
    },
    "meta": {}
}

Example of a theoretical future version with the Fabric REST API:

{
    "data": {
        "apiVersions": {
            "edge": {
                "v1": {
                    "path": "/edge/v1"
                }
            }
            "fabric": {
                "v1": {
                    "path": "/fabric/v1"
                }
            }
        },
        "buildDate": "2020-06-20 12:43:03",
        "revision": "1a27ed4bc64b",
        "runtimeVersion": "go1.14.3",
        "version": "v0.15.10"
    },
    "meta": {}
}

ShortIds

The Edge REST API has used UUID and its associated UUID text format for all ids. In 0.15 and forward, shortIds will be used and their associated format.

• make ids more human human friendly (logs, visual comparison)
• consolidate on ids that look similar between Fabric and Edge entities
• maintain a high degree of uniqueness comparable to UUIDs

All Ziti REST APIs will specify their ids as strings. If clients treat ids as opaque strings, then no comparability issues are expected. It is highly highly suggested that all clients follow this pattern.

Release 0.14.13

Ziti 0.14.13 includes the following:

• Ensure version information gets updated on non linux-amd64 builds

Release 0.14.12

Ziti 0.14.12 includes the following:

• Fix the logging prefix to be github.com/openziti

Release 0.14.11

Ziti 0.14.11 includes the following:

• Ziti-Tunnel - Bind terminators are only created during startup
• Close on one side of connection doesn't propagate to other side
• Simplify sequencer close logic
• Misc Fixes
  • PEM decoding returns error when not able to decode
  • Ziti enrolment capabilities now supports plain/text, application/x-pem-file, and application/json response accept and content-types
• CLI Change
  • ziti-tunnel has learned a new subcommand enroll. Usage is identical to the existing ziti-enroller

Release 0.14.10

Ziti 0.14.10 includes the following:

• Doc updates

Release 0.14.9

Ziti 0.14.9 includes the following:

• Move ziti edge controller commands to ziti edge
  • Note: for now ziti edge and ziti edge controller will both have edge controller related commands. ziti edge controller is deprecated and will be removed in a future release. Please update your scripts.

Release 0.14.8

Ziti 0.14.8 includes the following:

• Doc updates

Release 0.14.7

Ziti 0.14.7 includes the following:

• Add CLI support for updating terminators
• Add CLI support for managing identity service config overrides

NOTE: 0.14.6 was released with the same code as 0.14.5 due to CI re-running

Release 0.14.5

Theme

Ziti 0.14.5 includes the following:

Features

• Ziti Edge API
  • CA Identity Name Format
• Remove sourceType from metrics
• Fix name of metric from egress.tx.Msgrate to egress.tx.msgrate

Ziti Edge API

CA Identity Name Format

A new field, identityNameFormat,has been added to all certificate authority elements (GET /cas) that is available for all CRUD operations. This field is optional and defaults to [caName] - [commonName]. All existing CAs will also default to [caName] - [commonName].

The field, identityNameFormat, may contain any text and optionally include the following strings that are replaced with described values:

• [caId] - the id of the CA used for auto enrollment
• [caName] - the name of the CA used for auto enrollment
• [commonName] - the common name supplied by the enrolling cert
• [identityName] - the name supplied during enrollment (if any, defaults to [identityId] if the name field is blank during enrollment)
• [identityId] - id of the resulting identity

The default, [caName] - [commonName], would result in the following for a CA named "myCa" with an enrolling certificate with the common name "laptop01":

myCa - laptop01

Identity Name Collisions

If an identityNameFormat results in a name collision during enrollment, an incrementing number will be appended to the resulting identity name. If this is not desired, define an identityNameFormat that does not collide by using the above replacement strings and ensuring the resulting values (i.e. fromcommonName) are unique.

Release 0.14.4

Theme

Ziti 0.14.4 includes the following:

Misc

• Migration to github.com/openziti

Release 0.14.3

Theme

Ziti 0.14.3 includes the following:

Fixes

• orphaned enrollments/authenticators post identity PUT

Orphaned Enrollments/Authenticators

When updating an identity via PUT it was possible to clear the authenticators and enrollments associated with the identity making it impossible to authenticate as that identity or complete enrollment. This release removes failed enrollments, associates orphaned authenticators with their target identities, addresses the root cause, and adds regression tests.

Release 0.14.2

Theme

Ziti 0.14.2 includes the following:

• CLI enhancements
  • can't create service policy with @ identity name
  • Add CLI commands to allow updating policies and role attributes
  • CLI: read config/config-type JSON from file
• Not found errors for assigned/related ids do not say which resource was not found
• Fixes to connection setup timing

CLI Updates

Names in Policy Roles

Polices can now be created from the CLI using @name. This was previously supported natively in the REST APIs, however it was stripped out for consistency. The CLI now supports this by looking up names and replacing them with IDS when they are entered. When policies are listed they will show names instead of IDs now as well.

$ ziti edge controller create service-policy test-names Dial -i '#all' -s '@ssh'
Found services with id db9488ba-d0af-455b-9503-c6df88f228ff for name ssh
ba233791-8fde-44ba-9509-948275e3e3bb

$ ziti edge controller list service-policies 'name="test-names"'
id: ba233791-8fde-44ba-9509-948275e3e3bb    name: test-names    type: Dial    service roles: [@ssh]    identity roles: [#all]
results: 1-1 of 1 

New Update Commands

There are now update commands which allow updating role attributes on edge-routers, identities and services and roles on all three policy types.

All the update commands also allow changing the entity and policy names.

$ ziti edge controller update identity jsmith-laptop -a us-east,sales
$ ziti edge controller update service-policy sales-na -s o365,mattermost

Breaking Change to CLI commands

The shorthands for some policy flags have changed

• The shorthand for create edge-router-policy --edge-router-roles is now -e. It was -r
• The shorthand for create service-edge-router-policy --edge-router-roles is now -e. It was -r
• The shorthand for create service-policy --service-roles is now -s. It was -r

Release 0.14.1

Theme

Ziti 0.14.1 includes the following:

Features

• Enable graceful shutdown of bound connections

Fixes

• Enrollments w/ 0 length bodies cause enrollment errors
• Fixed race condition in end-to-end encryption setup
• Xt fixes
  • Fixed strategies missing session ended events
  • Fixed costed terminator sorting
  • Fixed race condition where terminators could be selected right after delete because they would have default cost.
  • Expanded space between precedence levels to ensure terminator static cost doesn't allow total costs to jump precedence boundary
  • Fixed type error in failure cost tracker
• Logging cleanup - many log statements that were error or info have been dropped to debug
• ziti-probe can now handle partial configs

Graceful SDK Hosted Application Shutdown

The Golang SDK now returns an edge.Listener instead of a net.Listener from Listen

type Listener interface {
    net.Listener
    UpdateCost(cost uint16) error
    UpdatePrecedence(precedence Precedence) error
    UpdateCostAndPrecedence(cost uint16, precedence Precedence) error
}

This allows clients to set their precedence to failed when shutting down. This will allow them to gracefully finishing any outstanding requests while ensuring that no new requests will be routed to this application. This should allow for applications to do round-robin upgrades without service interruption to clients. It also allows clients to influence costs on the fly based on knowledge available to the application.

Support is currently limited to the Golang SDK, support in other SDKs will be forthcoming as it is prioritized.

Release 0.14.0

Theme

Ziti 0.14.0 includes the following:

Features

• The first full implementation of high availability (HA) and horizontal scale (HS) services

Fixes

• When using index scanner, wrong count is returned when using skip
• fabric now includes migration to extract terminators from services
• more errors which were returning 500 now return appropriate 404 or 400 field errors
• terminators are now validated when routers connect, and invalid ones can be removed
• a potential race condition in UDP connection last time has been fixed and UDP connection logging has been tidied
• Terminator precedence may now be specified in the golang SDK in the listen options when binding a service

HA/HS

Ziti 0.12 extracted terminators from services. Services could have multiple terminators but only the first one would get used. Service have a terminatorStrategy field which was previously unused. Now the terminatorStrategy will determine how Ziti picks from multiple terminators to enable either HA or HS behavior.

Xt

The fabric now includes a new framework called Xt (eXtensible Terminators) which allows defining terminator strategies and defines how terminator strategies and external components integrate with smart routing. The general flow of terminator selection goes as follows:

1. A client requests a new session for a service
2. Smart routing finds all the active terminators for the session (active meaning the terminator's router is connected)
3. Smart routing calculates a cost for each terminator then hands the service's terminator strategy a list of terminators and their costs ranked from lowest to highest
4. The strategy returns the terminator that should be used
5. A new session is created using that path.

Strategies will often work by adjusting terminator costs. The selection algorithm the simply returns the lowest cost option presented by smart routing.

Costs

There are a number of elements which feed the smart routing cost algorithm.

Route Cost

The cost of the route from the initiating route to the terminator router will be included in the terminator cost. This cost may be influenced by things such as link latencies and user determined link costs.

Static Cost

Each terminator has a static cost which can be set or updated when the terminator is created. SDK applications can set the terminator cost when they invoke the Listen operation.

Precedence

Each terminator has a precedence. There are three precedence levels: required, default and failed.

Smart routing will always rank terminators with higher precedence levels higher than terminators with lower precedence levers. So required terminators will always be first, default second and failed third. Precedence levels can be used to implement HA. The primary will be marked as required and the secondary as default. When the primary is determined to be down, either by some internal or external set of heuristics, it will be marked as Failed and new sessions will go to the secondary. When the primary recovers it can be bumped back up to Required.

Dynamic Cost

Each terminator also has a dynamic cost that will move a terminator up and down relative to its precedence. This cost can be driven by stratagies or by external components. A strategy might use number of active of open sessions or dial successes and failures to drive the cost.

Cost API

Costs can be set via the Costs API in Xt:

package xt

type Costs interface {
	ClearCost(terminatorId string)
	GetCost(terminatorId string) uint32
	GetStats(terminatorId string) Stats
	GetPrecedence(terminatorId string) Precedence
	SetPrecedence(terminatorId string, precedence Precedence)
	SetPrecedenceCost(terminatorId string, weight uint16)
	UpdatePrecedenceCost(terminatorId string, updateF func(uint16) uint16)
	GetPrecedenceCost(terminatorId string) uint16
}

Each terminator has an associated precedence and dynamic cost. This can be reduced to a single cost. The cost algorithm ensures terminators at difference precedence levels do not overlap. So a terminator which is marked failed, with dynamic cost 0, will always have a higher calculated cost than a terminator with default precedence and maximum value for dynamic cost.

Strategies

Strategies must implement the following interface:

package xt

type Strategy interface {
	Select(terminators []CostedTerminator) (Terminator, error)
	HandleTerminatorChange(event StrategyChangeEvent) error
	NotifyEvent(event TerminatorEvent)
}

The Select method will be called by smart routing to pick terminators for a session. The session can react to terminator changes, such when a terminator is added to or removed from a service. The service is also notified via NotifyEvent whenever a session dial succeeds or fails and when a session for the service is ended.

The fabric currently provides four strategy implementions.

smartrouting

This is the default strategy. It always uses the lowest cost terminator. It drives costs as follows:

• Cost is proportional to number of open sessions
• Dial failures drive the cost up
• Dial successes drive the cost down, but only as much as they were previously driven up by failures

weighted

This strategy drives costs in the same way as the smartrouting strategy. However instead of always picking the lowest cost terminator it does a weighted random selection across all terminators of the highest precedence. If a terminator has double the cost of another terminator it should get picked approximately half as often.

random

This strategy does not change terminator weights. It does simple random selection across all terminators of the highest precedence.

ha

This strategy assumes that one terminator will have required precedence and there will be a secondary terminator with default precedence. If three consecutive dials to the highest ranked terminator fail in a row it will be marked as failed. This will allow the secondary to take over. If the primary recovers it can be marked as required again via the APIs.

API Changes

The terminator endpoint now supports setting the static terminator cost and terminator precedence.

* Endpoint: /terminators
    * Operations: PUT/POST/PATCH now take 
        * cost, type uint16, default 0
        * prededence, type string, default 'default', valid values: required, default, failed
    * Operation: GET now returns staticCost, dynamicCost

Release 0.13.9

Theme

Ziti 0.13.9 includes the following:

• Adds paging information to cli commands

Example

$ ec list api-sessions "true sort by token skip 2 limit 3" 
id: 37dd1463-e4e7-40de-9a63-f75486430361    token: 0b392a2f-47f8-4561-af63-93807ce70d93    identity: Default Admin
id: 6fb5b488-debf-4212-9670-f250e31b3d4f    token: 15ae6b00-f123-458c-a121-5cf91983a2c2    identity: Default Admin
id: 8aa4a074-b2c7-4d55-9f56-17199ab6ac11    token: 1b9418d8-b9a7-4e39-a876-7a9588f5e7ed    identity: Default Admin
results: 3-5 of 23

Release 0.13.8

Theme

Ziti 0.13.8 includes the following:

• Fixes Ziti Edge Router ignoring connect options for SDK listener

Release 0.13.7

Theme

Ziti 0.13.7 includes the following:

• Improvements to sdk availability when hosting services
• Various bug fixes to related to terminators and transit routers

SDK Resilience

The golang sdk now has a new listen method on context, which takes listen options.

type Context interface {
    ...
    ListenWithOptions(serviceName string, options *edge.ListenOptions) (net.Listener, error)
    ...
}

type ListenOptions struct {
    Cost           uint16
    ConnectTimeout time.Duration
    MaxConnections int
}

The SDK now supports the following:

• Configuring connect timeout
• Allow establishing new session, if existing session goes away
• Allow establishing new API session, existing API session goes away
• If client doesn't have access to service, it should stop listening and return an error
• If client can't establish or re-establish API session, it should stop listening and return error

If paired with a ziti controller/routers which support terminator strategies for HA/HS, the following features are also supported:

• Handle listen to multiple edge routers.
• Allow configuring max number of connections to edge routers

Release 0.13.6

Theme

• Fixes the -n flag being ignored for ziti-enroll

Release 0.13.5

Theme

• Adds ability to verify 3rd party CAs via the CLI in the Ziti Edge API

Ziti CLI Verify CA Support

Previous to this version the CLI was only capable of creating, editing, and deleting CAs. For a CA to be useful it must be verified. If not, it cannot be used for enrollment or authentication. The verification process requires HTTP requests and the creation of a signed verification certificate. The Ziti CLI can now perform all or part of this process.

Example: No Existing Verification Cert

This example is useful for situations where access to the CA's private key is possible. This command will fetch the CA's verification token from the Ziti Edge API, create a short lived (5 min) verification certificate, and use it to verify the CA.

This example includes the --password flag which is optional. If the --password flag is not included and the private key is encrypted the user will be prompted for the password.

• myCa is the name or id of a CA that has already been created.
• ca.cert.pem the CA's public x509 PEM formatted certificate
• ca.key.pem the CA's private x509 PEM formatted key

$ ziti edge controller verify ca myCa --cacert ca.cert.pem --cakey ca.key.pem --password 1234

Example: Existing Verification Certificate

This example is useful for situations where access to the signing CA's private key is not possible ( off-site, coldstore, etc.). This example assumes that the appropriate openssl commands have been run to generate the verification script.

• myCa is the name or id of a CA that has already been created.
• verificationCert.pem is a PEM encoded x509 certificate that has the common name set to the verification token of myCa

$ ziti edge controller verify ca myCa --cert verificationCert.pem

Command help:

$ ziti edge controller verify ca --help

Usage:
  ziti edge controller verify ca <name> ( --cert <pemCertFile> | --cacert
  <signingCaCert> --cakey <signingCaKey> [--password <caKeyPassword>]) [flags]

Flags:
  -a, --cacert string     The path to the CA cert that should be used togenerate and sign a verification cert
  -k, --cakey string      The path to the CA key that should be used to generate and sign a verification cert
  -c, --cert string       The path to a cert with the CN set as the verification token and signed by the target CA
  -h, --help              help for ca
  -j, --output-json       Output the full JSON response from the Ziti Edge Controller
  -p, --password string   The password for the CA key if necessary

Release 0.13.4

Theme

• Updates quickstart scripts

Release 0.13.3

Theme

Ziti 0.13.3 includes the following:

• Adds connect parameters for incoming channel2 connections (control, management, and SDK connections)
  • The options have internal defaults are needed only when connections

Connection Parameters

A new set of options have been introduced for channel2 backed listeners. Channel2 is a library used to establish message based connections between a channel2 client and server. Most importantly this is used for control and management connections in the ziti-controller and for the SDK connections accepted in ziti-router. Setting these values to invalid values will result in errors during startup of the ziti-controller and ziti-router

• maxQueuedConnects - set the maximum number of connect requests that are buffered and waiting to be acknowledged (1 to 5000, default 1000)
• maxOutstandingConnects - the maximum number of connects that have begun hello synchronization (1 to 1000, default 16)
• connectTimeoutMs - the number of milliseconds to wait before a hello synchronization fails and closes the connection (30ms to 60000ms, default: 1000ms)

Example: ziti-controller configuration file:

# the endpoint that routers will connect to the controller over.
ctrl:
  listener:             tls:127.0.0.1:6262
  options:
    maxQueuedConnects:      50
    maxOutstandingConnects: 100
    connectTimeoutMs:       3000

# the endpoint that management tools connect to the controller over.
mgmt:
  listener:             tls:127.0.0.1:10000
  options:
    maxQueuedConnects:      50
    maxOutstandingConnects: 100
    connectTimeoutMs:       3000

Example: ziti-router configuration file:

listeners:
  - binding: edge
    address: tls:0.0.0.0:3022
    options:
      # (required) The public hostname and port combination that Ziti SDKs should connect on. Previously this was in the chanIngress section.
      advertise: 127.0.0.1:3022
      maxQueuedConnects:      50
      maxOutstandingConnects: 100
      connectTimeoutMs:       3000

Release 0.13

Theme

Ziti 0.13 includes the following:

• Changes to make working with policies easier, including
  • New APIs to list existing role attributes used by edge routers, identities and services
  • New APIs to list entities related by polices (such as listing edge routers available to a service via service edge router policies)
  • Enhancements to the LIST APIs for edge routers, identities and services which allow one to filter by roles
  • A policy advisor API, which helps analyze policies and current system state to figure out if an identity should be able to use a service and if not, why not
• CA Auto Enrollment now allows identities to inherit role attributes from the validating CA
  • New identityRole attributes added to CA entities
• New APIs to list and manage Transit Routers
• Transit Routers now support enrolment via ziti-router enroll
• Embedded Swagger/OpenAPI 2.0 endpoint
• A small set of APIs accepted id or name. These have been changed to accept only id
• Fabric enhancements
  • New Xlink framework encapsulating the router capabilities for creating overlay mesh links.
  • Adjustable Xgress MTU size.
• All Ziti Go projects are now being built with Go 1.14
  • See here for change to Go in 1.14 - https://golang.org/doc/go1.14

Making Policies More User Friendly

Listing Role Attributes in Use

There are three new endpoints for listing role attributes in use.

* Endpoint: /edge-router-role-attributes
* Endpoint: /identity-role-attributes
* Endpoint: /service-role-attributes

All three support the same operations:

* Supported operations
    * List: GET
        * Supports filtering
        * role attributes can be filtered/sorted using the symbol `id`
        * Ex:`?filter=id contains "north" limit 5`

The CLI supports these new operations as well.

ziti edge controller list edge-router-role-attributes
ziti edge controller list identity-role-attributes
ziti edge controller list service-role-attributes

Example output:

$ ec list service-role-attributes "true sort by id desc limit 5" -j
{
    "meta": {
        "filterableFields": [
            "id"
        ],
        "pagination": {
            "limit": 5,
            "offset": 0,
            "totalCount": 10
        }
    },
    "data": [
        "two",
        "three",
        "support",
        "sales",
        "one"
    ]
}

Listing Entities Related by Policies

This adds operations to the /services, /identities and /edge-routers endpoints.

* Endpoint: /edge-routers
* New operations
   * Query related identities: GET /edge-routers/<edge-router-id>/identities?filter=<optional-filter>
   * Query related services: GET /edge-routers/<edge-router-id>/services?filter=<optional-filter>

* Endpoint: /identities
* New operations
   * Query related edge routers: GET /identities/<identity-id>/edge-routers?filter=<optional-filter>
   * Query related services: GET /identities/<identity-id>/services?filter=<optional-filter>

* Endpoint: /services
* New operations
   * Query related identities: GET /services/<service-id>/identities?filter=<optional-filter>
   * Query related edge routers: GET /services/<service-id>/edge-routers?filter=<optional-filter>

Filtering Entity Lists by Roles

When building UIs it may be useful to list entities which have role attributes by role filters, to see what policy changes may look like.

 * Endpoint: /edge-routers
 * Query: GET /edge-routers now supports two new query paramters
     * roleFilter. May be specified more than one. Should be an id or role specifier (ex: @38683097-2412-4335-b056-ae8747314dd3 or #sales)
     * roleSemantic. Optional. Defaults to AllOf if not specified. Indicates which semantic to use when evaluating role matches

 * Endpoint: /identities
 * Query: GET /identities now supports two new query paramters
     * roleFilter. May be specified more than one. Should be an id or role specifier (ex: @38683097-2412-4335-b056-ae8747314dd3 or #sales)
     * roleSemantic. Optional. Defaults to AllOf if not specified. Indicates which semantic to use when evaluating role matches

 * Endpoint: /services
 * Query: GET /services now supports two new query paramters
     * roleFilter. May be specified more than one. Should be an id or role specifier (ex: @38683097-2412-4335-b056-ae8747314dd3 or #sales)
     * roleSemantic. Optional. Defaults to AllOf if not specified. Indicates which semantic to use when evaluating role matches

Note that a roleFilter should have one role specifier (like @some-id or #sales). If you wish to specify multiple, provide multiple role filters.

/edge-routers?roleFilter=#sales&roleFilter=#us

These are also supported from the CLI when listing edge routers, identities and services using the --role-filters and --role-semantic flags.

Example:

$ ec list services
id: 2a724ae7-8b8f-4688-90df-34951bce6720    name: grpc-ping    terminator strategy:     role attributes: ["fortio","fortio-server"]
id: 37f1e34c-af06-442f-8e62-032916912bc6    name: grpc-ping-standalone    terminator strategy:     role attributes: {}
id: 38683097-2412-4335-b056-ae8747314dd3    name: quux    terminator strategy:     role attributes: ["blop","sales","three"]
id: 4e33859b-070d-42b1-8b40-4adf973f680c    name: simple    terminator strategy:     role attributes: {}
id: 9480e39d-0664-4482-b230-5da2c17b225b    name: iperf    terminator strategy:     role attributes: {}
id: a949cf80-b11b-4cce-bbb7-d2e4767878a6    name: baz    terminator strategy:     role attributes: ["development","sales","support"]
id: ad95ec7d-6c05-42b6-b278-2a98a7e502df    name: bar    terminator strategy:     role attributes: ["four","three","two"]
id: cd1ae16e-5015-49ad-9864-3ca0f5814091    name: ssh    terminator strategy:     role attributes: {}
id: dcc9922a-c681-41bf-8079-be2163509702    name: mattermost    terminator strategy:     role attributes: {}
id: e9673c77-7463-4517-a642-641ef35855cf    name: foo    terminator strategy:     role attributes: ["one","three","two"]

$ ec list services --role-filters '#three'
id: 38683097-2412-4335-b056-ae8747314dd3    name: quux    terminator strategy:     role attributes: ["blop","sales","three"]
id: ad95ec7d-6c05-42b6-b278-2a98a7e502df    name: bar    terminator strategy:     role attributes: ["four","three","two"]
id: e9673c77-7463-4517-a642-641ef35855cf    name: foo    terminator strategy:     role attributes: ["one","three","two"]

$ ec list services --role-filters '#three','#two'
id: ad95ec7d-6c05-42b6-b278-2a98a7e502df    name: bar    terminator strategy:     role attributes: ["four","three","two"]
id: e9673c77-7463-4517-a642-641ef35855cf    name: foo    terminator strategy:     role attributes: ["one","three","two"]

$ ec list services --role-filters '#three','#sales' --role-semantic AnyOf
id: 38683097-2412-4335-b056-ae8747314dd3    name: quux    terminator strategy:     role attributes: ["blop","sales","three"]
id: a949cf80-b11b-4cce-bbb7-d2e4767878a6    name: baz    terminator strategy:     role attributes: ["development","sales","support"]
id: ad95ec7d-6c05-42b6-b278-2a98a7e502df    name: bar    terminator strategy:     role attributes: ["four","three","two"]
id: e9673c77-7463-4517-a642-641ef35855cf    name: foo    terminator strategy:     role attributes: ["one","three","two"]

$ ec list services --role-filters '#three''#sales','@4e33859b-070d-42b1-8b40-4adf973f680c' --role-semantic AnyOf
id: 38683097-2412-4335-b056-ae8747314dd3    name: quux    terminator strategy:     role attributes: ["blop","sales","three"]
id: 4e33859b-070d-42b1-8b40-4adf973f680c    name: simple    terminator strategy:     role attributes: {}
id: a949cf80-b11b-4cce-bbb7-d2e4767878a6    name: baz    terminator strategy:     role attributes: ["development","sales","support"]
id: ad95ec7d-6c05-42b6-b278-2a98a7e502df    name: bar    terminator strategy:     role attributes: ["four","three","two"]
id: e9673c77-7463-4517-a642-641ef35855cf    name: foo    terminator strategy:     role attributes: ["one","three","two"]

Policy Advisor

This adds a new operation to the /identities endpoint

* Endpoint: /identities
* New operations
   * Query related identities: GET /identities/<identity-id>/policy-advice/<service-id>

This will return the following information about the identity and service:

• If the identity can dial the service
• If the identity can bind the service
• How many edge routers the identity has access to
• How many edge routers the service can be accessed through
• Which edge routers the identity and service have in common (if this is none, then the service can't be accessed by the identity)
• Which of the common edge routers are on-line

Example result:

{
    "meta": {},
    "data": {
        "identityId": "700347c8-ca3a-4438-9060-68f7255ee4f8",
        "identity": {
            "entity": "identities",
            "id": "700347c8-ca3a-4438-9060-68f7255ee4f8",
            "name": "ssh-host",
            "_links": {
                "self": {
                    "href": "./identities/700347c8-ca3a-4438-9060-68f7255ee4f8"
                }
            }
        },
        "serviceId": "8fa27a3e-ffb1-4bd1-befa-fcd38a6c26b3",
        "service": {
            "entity": "services",
            "id": "8fa27a3e-ffb1-4bd1-befa-fcd38a6c26b3",
            "name": "ssh",
            "_links": {
                "self": {
                    "href": "./services/8fa27a3e-ffb1-4bd1-befa-fcd38a6c26b3"
                }
            }
        },
        "isBindAllowed": true,
        "isDialAllowed": false,
        "identityRouterCount": 2,
        "serviceRouterCount": 2,
        "commonRouters": [
            {
                "entity": "edge-routers",
                "id": "43d220d8-860e-4d80-a25c-97322a7326b4",
                "name": "us-west-1",
                "_links": {
                    "self": {
                        "href": "./edge-routers/43d220d8-860e-4d80-a25c-97322a7326b4"
                    }
                },
                "isOnline": false
            },
            {
                "entity": "edge-routers",
                "id": "8c118857-c12e-430d-9109-c31f535933f6",
                "name": "us-east-1",
                "_links": {
                    "self": {
                        "href": "./edge-routers/8c118857-c12e-430d-9109-c31f535933f6"
                    }
                },
                "isOnline": true
            }
        ]
    }
}

The CLI has also been updated with a new policy-advisor common.

Examples:

# Inspect all identities for policy issues
ziti edge controller policy-advisor identities

# Inspect just the jsmith-laptop identity for policy issues with all services that the identity can access
ziti edge controller policy-advisor identities jsmith-laptop

# Inspect the jsmith-laptop identity for issues related to the ssh service
ziti edge controller policy-advisor identities jsmith-laptop ssh

# Inspect all services for policy issues
ziti edge controller policy-advisor services

# Inspect just the ssh service for policy issues for all identities the service can access
ziti edge controller policy-advisor services ssh

# Inspect the ssh service for issues related to the jsmith-laptop identity 
ziti edge controller policy-advisor identities ssh jsmith-laptop

Some example output of the CLI:

$ ec policy-advisor identities -q
ERROR: mlapin-laptop (1) -> ssh-backup (0) Common Routers: (0/0) Dial: Y Bind: N 
  - Service has no edge routers assigned. Adjust service edge router policies.

ERROR: mlapin-laptop (1) -> ssh (2) Common Routers: (0/0) Dial: Y Bind: N 
  - Identity and services have no edge routers in common. Adjust edge router policies and/or service edge router policies.

ERROR: ndaniels-laptop (1) -> ssh-backup (0) Common Routers: (0/0) Dial: Y Bind: N 
  - Service has no edge routers assigned. Adjust service edge router policies.

ERROR: ndaniels-laptop (1) -> ssh (2) Common Routers: (0/1) Dial: Y Bind: N 
  - Common edge routers are all off-line. Bring routers back on-line or adjust edge router policies and/or service edge router policies to increase common router pool.

ERROR: Default Admin 
  - Identity does not have access to any services. Adjust service policies.

ERROR: jsmith-laptop (2) -> ssh-backup (0) Common Routers: (0/0) Dial: Y Bind: N 
  - Service has no edge routers assigned. Adjust service edge router policies.

OKAY : jsmith-laptop (2) -> ssh (2) Common Routers: (1/2) Dial: Y Bind: N 

ERROR: ssh-host (2) -> ssh-backup (0) Common Routers: (0/0) Dial: N Bind: Y 
  - Service has no edge routers assigned. Adjust service edge router policies.

OKAY : ssh-host (2) -> ssh (2) Common Routers: (1/2) Dial: N Bind: Y 

ERROR: aortega-laptop 
  - Identity does not have access to any services. Adjust service policies.

ERROR: djones-laptop (0) -> ssh-backup (0) Common Routers: (0/0) Dial: Y Bind: N 
  - Identity has no edge routers assigned. Adjust edge router policies.
  - Service has no edge routers assigned. Adjust service edge router policies.

ERROR: djones-laptop (0) -> ssh (2) Common Routers: (0/0) Dial: Y Bind: N 
  - Identity has no edge routers assigned. Adjust edge router policies.

$ ec policy-advisor identities aortega-laptop ssh-backup -q
Found identities with id 70567104-d4bd-45f1-8179-bd1e6ab8751f for name aortega-laptop
Found services with id 46e94977-0efc-4e7d-b9ae-cc8df1c95fc1 for name ssh-backup
ERROR: aortega-laptop (0) -> ssh-backup (0) Common Routers: (0/0) Dial: N Bind: N 
  - No access to service. Adjust service policies.
  - Identity has no edge routers assigned. Adjust edge router policies.
  - Service has no edge routers assigned. Adjust service edge router policies.

CA Auto Enrollment Identity Attributes

Identities that are enrolled via a CA can now inherit a static list of identity role attributes. The normal create, update, patch requests supported by the CA entities now allow the role attributes to be specified. CA identity role attribute changes do no propagate to identities that have completed enrollment.

This feature allows a simple degree of automation for identities that are auto-provisioning through a third party CA.

• identityRoles added to /ca endpoints for normal CRUD operations
• identityRoles from a CA entity are point-in-time copies

New APIs to list and manage Transit Routers

The endpoint/transit-routers has been added to create and manage Transit Routers. Transit Routers do not handle incoming Ziti Edge SDK connections.

* Endpoint: /transit-routers
* Supported operations
    * Detail: GET /transit-routers/<transit-router-id>
    * List: GET /transit-routers/
    * Create: POST /transit-routers
    * Update All Fields: PUT /transit-routers/<transit-router-id>
    * Update Selective Fields: PATCH /transit-routers/<transit-router-id>
    * Delete: DELETE /transit-routers/<transit-router-id>
 * Properties
     * Transit Routers support the standard properties (id, createdAt, updatedAt, tags)
     * name - Type string - a friendly Edge name for the transit router
     * fingerprint - Type string - a hex string fingerprint of the transit router's public certificate (post enrollment)
     * isVerified - Type bool - true if the router has completed enrollment
     * isOnline - Type bool - true if the router is currently connected to the controller
     * enrollmentToken - Type string - the enrollment token that would be used during enrollment (nil post enrollment)
     * enrollmentJwt - Type string - an enrollment JWT suitable for use with "ziti-router enroll" (nil post enrollment)
     * enrollmentCreatedAt - Type date-time - the date and time the enrollment was created (nil post enrollment)
     * enrollmentExpiresAt - Type date-time - the date and time the enrollment expires at (matches JWT expiration time, nil post enrollment)

Example list output:

{
  "meta": {
    "filterableFields": [
      "id",
      "createdAt",
      "updatedAt",
      "name"
    ],
    "pagination": {
      "limit": 10,
      "offset": 0,
      "totalCount": 2
    }
  },
  "data": [
    {
      "id": "002",
      "createdAt": "2020-03-30T00:55:38.1701084Z",
      "updatedAt": "2020-03-30T00:55:38.1701084Z",
      "_links": {
        "self": {
          "href": "./transit-routers/002"
        }
      },
      "tags": {},
      "name": "",
      "fingerprint": "07e011481921b4734df82c52ae2b3113617cdd18",
      "isVerified": true,
      "isOnline": false,
      "enrollmentToken": null,
      "enrollmentJwt": null,
      "enrollmentCreatedAt": null,
      "enrollmentExpiresAt": null
    },
    {
      "id": "99f4109b-cd6d-40e3-9a62-bee24d7eccd6",
      "createdAt": "2020-03-30T17:48:17.2949059Z",
      "updatedAt": "2020-03-30T17:48:17.2949059Z",
      "_links": {
        "self": {
          "href": "./transit-routers/99f4109b-cd6d-40e3-9a62-bee24d7eccd6"
        }
      },
      "tags": {},
      "name": "",
      "fingerprint": "25d1048f3c7bc4a5956ce7316e2ca70999c0e27d",
      "isVerified": true,
      "isOnline": false,
      "enrollmentToken": null,
      "enrollmentJwt": null,
      "enrollmentCreatedAt": null,
      "enrollmentExpiresAt": null
    }
  ]
}

Transit Routers now support enrolment via ziti-router enroll

Transit Routers now enroll using the same command: ziti-router enroll <config> -j <jwt>. During the enrollment process, the CSR properties used will be taken from edge.csr. If edge.csr does not exist csr will be utilized. If both are missing an error will occur.

Example router configuration:

v: 3

identity:
  cert: etc/ca/intermediate/certs/001-client.cert.pem
  server_cert: etc/ca/intermediate/certs/001-server.cert.pem
  key: etc/ca/intermediate/private/001.key.pem
  ca: etc/ca/intermediate/certs/ca-chain.cert.pem

# Configure the forwarder options
#
forwarder:
  # How frequently does the forwarder probe the link latency. This will ultimately determine the resolution of the
  # responsiveness available to smart routing. This resolution comes at the expense of bandwidth utilization for the
  # probes, control plane utilization, and CPU utilization processing the results.
  #
  latencyProbeInterval: 1000

# Optional CSR section for transit router enrollment via `ziti-router enroll <config> -j <jwt>`
csr:
  country: US
  province: NC
  locality: Charlotte
  organization: NetFoundry
  organizationalUnit: Ziti
  sans:
    dns:
      - "localhost"
      - "test-network"
      - "test-network.localhost"
      - "ziti-dev-ingress01"
    email:
      - "admin@example.com"
    ip:
      - "127.0.0.1"
    uri:
      - "ziti://ziti-dev-router01/made/up/example"


#trace:
#  path:                 001.trace

#profile:
#  memory:
#    path:               001.memprof
#  cpu:
#    path:               001.cpuprof

ctrl:
  endpoint: tls:127.0.0.1:6262

link:
  dialers:
    - binding: transport

listeners:
  # basic ssh proxy
  - binding: proxy
    address: tcp:0.0.0.0:1122
    service: ssh
    options:
      mtu: 768

  # for iperf_tcp (iperf3)
  - binding: proxy
    address: tcp:0.0.0.0:7001
    service: iperf

  # for iperf_udp (iperf3)
  - binding: proxy_udp
    address: udp:0.0.0.0:7001
    service: iperf_udp

  # example xgress_transport
  - binding: transport
    address: tls:0.0.0.0:7002
    options:
      retransmission: true
      randomDrops: true
      drop1InN: 5000

  # example xgress_udp
  - binding: transport_udp
    address: udp:0.0.0.0:7003
    options:
      retransmission: true
      randomDrops: true
      drop1InN: 5000

Embedded Swagger/OpenAPI 2.0 endpoint

The endpoint/specs has been added to retrieve API specifications from the Ziti Controller. The specifications are specific to the version of the controller deployed.

The main endpoint to retrieve the Swagger/Open API 2.0 specification is: /specs/swagger/spec

* Endpoint: /specs
* Supported operations
    * Detail: GET /specs/<spec-id>
    * Get Spec: GET /specs/<spec-id>/spec
    * List: GET /specs/
 * Properties
     * Transit Routers support the standard properties (id, createdAt, updatedAt, tags)
     * name - Type string - the and intent of the spec

APIs now only accept ID, not ID or Name

1. Some APIs related to configurations accepted config names or ids. These now only accept name.
2. Policies would accept entity references with names as well as ids. So you could use @ssh, for example when referencing the ssh service. These now also only accept ID

In general allowing both values adds complexity to the server side code. Consuming code, such as user interfaces or the ziti cli, can do the name to id translation just as easily.

Fabric Enhancements

Xlink Framework

The new Xlink framework requires that the router configuration file is updated to v: 3.

The link section of the router configuration is now structured like this:

link:
  listeners:
    - binding:          transport
      bind:             tls:127.0.0.1:6002
      advertise:        tls:127.0.0.1:6002
      options:
        outQueueSize:   16
  dialers:
    - binding:          transport

The link/listeners/bind address replaces the old link/listener address, and the link/listeners/advertise address replaces the old link/advertise address.

The router configuration MUST be updated to include link/dialers section with a transport binding (as in the above example) to include support for outbound link dialing.

Subsequent releases will include support for multiple Xlink listeners and dialers. 0.13 supports only a single listener and dialer to be configured.

Xgress MTU

The Xgress listeners and dialers now support an mtu option in their options stanza:

listeners:
  # basic ssh proxy
  - binding:            proxy
    address:            tcp:0.0.0.0:1122
    service:            ssh
    options:
      mtu:              768
      
dialers:
  - binding:            transport
    options:
      mtu:              512

This MTU controls the maximum size of the Payload packet sent across the data plane of the overlay.

Release 0.12

Theme

Ziti 0.12 includes the following:

• Terminators have been extracted from services
  • Terminators define where a service terminates. Previously each service had exactly one terminator. Now services can have 0 to N terminators.
• List APIs now support inline paging
• Association APIs now support filtering, paging and querying
• The bolt datastore creates a backup of the datastore file before attempting a schema/data migration
• Fabric and edge code are now much more closely aligned at the persistence and model layers
• Some deprecated endpoints are now being removed

Terminators

See https://github.com/openziti/fabric/wiki/Pluggable-Service-Terminators for a discussion of what service terminators are, the motivation for extracting them from services and the design for how they will work.

This release includes the following:

• Terminators extracted from service as separate entities
• When SDK applications bind and unbind, the controller now dynamically adds/removes terminators as appropriate

This release does not yet include a terminator strategy API. Strategies can be specified per service, but if a service has multiple terminators the first one will be used. The terminator strategy API along with some implementations will be added in a follow-up release. This release also does not include strategy inputs on terminators as discussed in the above design document. If strategy inputs end up being useful, they may be added in the furure.

Terminator related API changes

There is a new terminators endpoint:

* Endpoint: /terminators
* Supported operations
    * Detail: GET /terminators/<terminator-id>
    * List: GET /terminators/
    * Create: POST /terminators
    * Update All Fields: PUT /terminators/<terminator-id>
    * Update Selective Fields: PATCH /terminators/<terminator-id>
    * Delete: DELETE /terminators/<terminator-id>
 * Properties
     * Terminators support the standard properties (id, createdAt, updatedAt, tags)
     * service - type: uuid, must be a valid service id
     * router - type: uuid, must be a valid router id
     * binding - type: string. Optional, defaults to "transport". The xgress binding on the selected router to use
     * address - type: string. The address that will be dialed using the xgress component on the selected router

The service endpoint has changes as well:

* Endpoint: /services
* New operations
   * Query related endpoints: GET /services/<service-id>/terminators?filter=<optional-filter>
* The following properties have been removed
   * egressRouter
   * endpointAddress
* The following property has been added
   * terminatorStrategy - type: string, optional. The terminator strategy to use. Currently unused.

The fabric service definition has also changed (visible from ziti-fabric).

• The following properties have been removed
  • binding
  • egressRouter
  • endpointAddress
• The following property has been added
  • terminatorStrategy

The ziti and ziti-fabric CLIs have been updated with new terminator related functionality, so that terminators can be viewed, created and deleted from both.

Filtering/Sorting/Paging Changes

List operations on entities previously allowed the following parameters:

• filter
• sort
• limit
• offset

These are all still supported, but now sort, limit and offset can also be included in the filter. If parameters are specified both in the filter and in an explicit query parameter, the filter takes precedence.

When listing entities from the ziti CLI, filters can be included as an optional argument.

For example:

$ ziti edge controller list services
id: 37f1e34c-af06-442f-8e62-032916912bc6    name: grpc-ping-standalone    terminator strategy:     role attributes: {}
id: 4e33859b-070d-42b1-8b40-4adf973f680c    name: simple    terminator strategy:     role attributes: {}
id: 9480e39d-0664-4482-b230-5da2c17b225b    name: iperf    terminator strategy:     role attributes: {}
id: cd1ae16e-5015-49ad-9864-3ca0f5814091    name: ssh    terminator strategy:     role attributes: {}
id: dc0446f0-7eaa-465f-80b5-c88f0a6b59cc    name: grpc-ping    terminator strategy:     role attributes: ["fortio","fortio-server"]
id: dcc9922a-c681-41bf-8079-be2163509702    name: mattermost    terminator strategy:     role attributes: {}

$ ziti edge controller list services 'name contains "s"'
id: 37f1e34c-af06-442f-8e62-032916912bc6    name: grpc-ping-standalone    terminator strategy:     role attributes: {}
id: 4e33859b-070d-42b1-8b40-4adf973f680c    name: simple    terminator strategy:     role attributes: {}
id: cd1ae16e-5015-49ad-9864-3ca0f5814091    name: ssh    terminator strategy:     role attributes: {}
id: dcc9922a-c681-41bf-8079-be2163509702    name: mattermost    terminator strategy:     role attributes: {}

$ ziti edge controller list services 'name contains "s" sort by name'
id: 37f1e34c-af06-442f-8e62-032916912bc6    name: grpc-ping-standalone    terminator strategy:     role attributes: {}
id: dcc9922a-c681-41bf-8079-be2163509702    name: mattermost    terminator strategy:     role attributes: {}
id: 4e33859b-070d-42b1-8b40-4adf973f680c    name: simple    terminator strategy:     role attributes: {}
id: cd1ae16e-5015-49ad-9864-3ca0f5814091    name: ssh    terminator strategy:     role attributes: {}

$ ziti edge controller list services 'name contains "s" sort by name skip 1 limit 2'
id: dcc9922a-c681-41bf-8079-be2163509702    name: mattermost    terminator strategy:     role attributes: {}
id: 4e33859b-070d-42b1-8b40-4adf973f680c    name: simple    terminator strategy:     role attributes: {}

Association lists now also support filtering, sorting and paging. Association GET operations only support the filter parameter.

$ ziti edge controller list service terminators ssh
Found services with id cd1ae16e-5015-49ad-9864-3ca0f5814091 for name ssh
id: 41f4fd01-0bd7-4987-93b3-3b2217b00a22    serviceId: cd1ae16e-5015-49ad-9864-3ca0f5814091    routerId: 888cfde1-5786-4ba8-aa75-9f97804cb7bb    binding: transport    address: tcp:localhost:22
id: a5213300-9c5f-4b0e-a790-1ed460964d7c    serviceId: cd1ae16e-5015-49ad-9864-3ca0f5814091    routerId: 888cfde1-5786-4ba8-aa75-9f97804cb7bb    binding: transport    address: tcp:localhost:2022

$ ziti edge controller list service terminators ssh "true sort by address"
Found services with id cd1ae16e-5015-49ad-9864-3ca0f5814091 for name ssh
id: a5213300-9c5f-4b0e-a790-1ed460964d7c    serviceId: cd1ae16e-5015-49ad-9864-3ca0f5814091    routerId: 888cfde1-5786-4ba8-aa75-9f97804cb7bb    binding: transport    address: tcp:localhost:2022
id: 41f4fd01-0bd7-4987-93b3-3b2217b00a22    serviceId: cd1ae16e-5015-49ad-9864-3ca0f5814091    routerId: 888cfde1-5786-4ba8-aa75-9f97804cb7bb    binding: transport    address: tcp:localhost:22

$ ziti edge controller list service terminators ssh "true sort by address desc"
Found services with id cd1ae16e-5015-49ad-9864-3ca0f5814091 for name ssh
id: 41f4fd01-0bd7-4987-93b3-3b2217b00a22    serviceId: cd1ae16e-5015-49ad-9864-3ca0f5814091    routerId: 888cfde1-5786-4ba8-aa75-9f97804cb7bb    binding: transport    address: tcp:localhost:22
id: a5213300-9c5f-4b0e-a790-1ed460964d7c    serviceId: cd1ae16e-5015-49ad-9864-3ca0f5814091    routerId: 888cfde1-5786-4ba8-aa75-9f97804cb7bb    binding: transport    address: tcp:localhost:2022

Bolt Datastore Migrations

The fabric now supports migrating schema/data from one version to another. The fabric and edge share a common framework for migration. The migration framework now also automatically backs up the bolt data file before migration data. The backup file will have the same name as the original bolt file but with a timestamp appended to it.

Example:

Original file: /tmp/ziti-bolt.db
Backup file:   /tmp/ziti-bolt.db-20200316-134725

The fabric and edge schemas do not yet get migrated in the same transaction. This will be addressed in a follow-up release.

Fabric and Edge Alignment

The fabric and edge persistence and model layers are now using the same foundational plumbing. This will allow for a common API layer in a follow-up release.

As part of this consolidation effort, fabric entities now share the same set of common properties as edge entities, namely:

• id
• createdAt
• updatedAt
• tags

Previously the only common property was id.

Deprecated Endpoints

The /gateways (replaced by /edge-routers) and network-sessions (replaced by /sessions) endpoints, which were previously deprecated, have now been removed.

Miscellaneous

There is a new ziti edge controller version command which shows information about the version of the controller being connected to:

Example:

$ ziti edge controller version
Version     : v0.9.0
GIT revision: ea556fc18740
Build Date  : 2020-02-11 16:09:08
Runtime     : go1.13

Release 0.11

Theme

Ziti 0.11 includes the following:

• Ziti connections from Ziti SDK client to services hosted by SDK are encrypted end-to-end (no API changes)

End-to-end Encryption

Client and Hosting SDK instances setup end-to-end channels using secure key exchange and AEAD streams. Read more about on https://openziti.github.io (coming soon)

Releaes 0.10

Theme

Ziti 0.10 includes a single change:

• Edge API input validation processing was changed to operate on the supplied JSON instead of target objects

Edge API Validation

Before this version, the Edge API allowed some fields to be omitted from requests. This behavior was due to the fact that the API was validating the object that resulted from the JSON. This would cause some fields that were not supplied to default to an acceptable nil/null/empty value.

Some APIs call may now fail with validation errors expecting fields to be defined for POST (create) and PUT (update) operations. PATCH (partial update) should not be affected.

Release 0.9

Theme

Ziti 0.9 includes the following

• a generic service configuration facility, useful for configuring service centric edge configuration data
• several changes to policy syntax and semantics
• service edge router policies are now a separate entity, instead of just a field on service

Service Configuration

Configurations are named JSON style objects that can be associated with services. Configurations have a type. A service can have 0 or 1 configurations of each configuration type associated with it.

Configuration types

There is a new endpoint for managing config types.

* Endpoint: `/config-types`
* Supported operations
    * Detail: GET `/config-types/<config-type-id>`
    * List: GET `/config-types/`
    * Create: POST `/config-types`
    * Update All Fields: PUT `/config-types/<config-type-id>`
    * Update Selective Fields: PATCH `/config-types/<config-type-id>`
    * Delete: DELETE `/config-types/<config-type-id>`
    * List associated configs GET `/config-types/<config-id>/configs`
 * Properties
     * Config types support the standard properties (id, createdAt, updatedAt, tags)
     * name - type: string, constraints: required, must be unique. If provided must be a valid JSON schema.
     * schema - type: object. Optional.

If a schema is set on a type, that schema will be used to validate config data on configurations of that type. Validation will happen if a configuration is created or updated. If a config type schema changes, the system does not re-validate configurations of that type.

It is generally assumed that if there are backwards incompatible changes being made to a schema that a new config type will be created and interested applications can support multiple configuration types.

The ziti CLI supports the following operations on config types:

* create config-type
* list config-types
* list config-type configs
* delete config-type

Configurations

There is a new endpoint for managing configurations

* Endpoint: `/configs`
* Supported operations
    * Detail: GET `/configs/<config-id>`
    * List: GET `/configs/`
    * Create: POST `/configs/`
    * Update All Fields: PUT `/configs/<config-id>`
    * Update Selective Fields: PATCH `/configs/<config-id>`
    * Delete: DELETE `/config-types/<config-id>`
 * Properties
     * Configs support the standard properties (id, createdAt, updatedAt, tags)
     * name - type: string, constraints: unique
     * type - type: string. May be a config type id or config type name
     * data - type: JSON object
         * Support values are strings, numbers, booleans and nested objects/maps

The ziti CLI supports the following operations on configs:

* create config
* update config
* list configs
* delete config

$ ziti edge controller create config ssh ziti-tunneler-client.v1 '{ "hostname" : "ssh.mycompany.com", "port" : 22 }'
83a1e815-04bc-4c91-8d88-1de8c943545f

$ ziti edge controller list configs
id:   83a1e815-04bc-4c91-8d88-1de8c943545f
name: ssh
type: f2dd2df0-9c04-4b84-a91e-71437ac229f1
data: {
          "hostname": "ssh.mycompany.com",
          "port": 22
      }

$ ziti edge controller update config ssh -d '{ "hostname" : "ssh.mycompany.com", "port" : 2022 }'
Found configs with id 83a1e815-04bc-4c91-8d88-1de8c943545f for name ssh

$ ziti edge controller list configs
id:   83a1e815-04bc-4c91-8d88-1de8c943545f
name: ssh
type: f2dd2df0-9c04-4b84-a91e-71437ac229f1
data: {
          "hostname": "ssh.mycompany.com",
          "port": 2022
      }

$ ziti edge controller delete config ssh
Found configs with id 83a1e815-04bc-4c91-8d88-1de8c943545f for name ssh

$ ziti edge controller list configs
$ 

Service Configuration

The DNS block, which included hostname and port, has been removed from service definitions. When creating or updating services, you can submit a configs array, which may include config ids or names (or a mix of the two). Configs are not required.

NOTE: Only one config of a given type may be associated with a service.

Configurations associated with a service may be listed as entities using:

* List associated configs GET `/services/<config-id>/configs`

Retrieving service configuration

When authenticating, a user may now indicate which config types should be included when listing services. The authentication POST may include a body. If the body has a content-type of application/json, it will be parsed as a map. The controller will looking for a key at the top level of the map called configTypes, which should be an array of config type ids or names (or mix of the two).

Example authentication POST body:

{
  "configTypes": [
    "ziti-tunneler-client.v1",
    "ziti-tunneler-client.v2"
  ]
}

When retrieving services, the config data for for those configuration types that were requested will be embedded in the service definition. For example, if the user has requested (by name) the config types "ziti-tunneler-client.v1" and "ziti-tunneler-server.v1" and the ssh service has configurations of both of those kinds associated, a listing which includes that service might look as follows:

{
  "meta": {
    "filterableFields": [
      "id",
      "createdAt",
      "updatedAt",
      "name",
      "dnsHostname",
      "dnsPort"
    ],
    "pagination": {
      "limit": 10,
      "offset": 0,
      "totalCount": 1
    }
  },
  "data": [
    {
      "id": "2e79d56a-e37a-4f32-9769-f934976843d9",
      "createdAt": "2020-01-23T20:08:58.634275277Z",
      "updatedAt": "2020-01-23T20:08:58.634275277Z",
      "_links": {
        "edge-routers": {
          "href": "./services/2e79d56a-e37a-4f32-9769-f934976843d9/edge-routers"
        },
        "self": {
          "href": "./services/2e79d56a-e37a-4f32-9769-f934976843d9"
        },
        "service-policies": {
          "href": "./services/2e79d56a-e37a-4f32-9769-f934976843d9/identities"
        }
      },
      "tags": {},
      "name": "ssh",
      "endpointAddress": "tcp:localhost:22",
      "egressRouter": "cf5d76cb-3fff-4dce-8376-60b2bfb505a6",
      "edgeRouterRoles": null,
      "roleAttributes": null,
      "permissions": [
        "Dial"
      ],
      "config": {
        "ziti-tunneler-client.v1": {
          "hostname": "ssh.mycompany.com",
          "port": 22
        },
        "ziti-tunneler-server.v1": {
          "protocol": "tcp",
          "hostname": "ssh.mycompany.com",
          "port": 22
        }
      }
    }
  ]
}

Identity Service Configuration

Configuration for a service can also be specified for a given identity. If a configuration is specified for a service, it will replace any configuration of that type on that service.

* Endpoint /identities/<identityId/service-configs
* Supported operations
    * GET returns the array of  
    * POST will add or update service configurations for the identity
        * If a configuration has the same type as another configuration on the same service, it will replace it
    * DELETE 
        * if given an array of service configs, will delete any matching entries
        * If given an empty body or empty array, all service configurations will be removed from the identity
* Data Format all operations take or return an array of objects with service and config parameters
    * service may be a service name or id. If there are id and name collisions, id will take precedence
    * config may be a config name or id. If there are id and name collisions, id will take precedence
    * Ex: [{"service": "ssh", "config"  : "my-custom-ssh-config" }]

Policy Changes

Syntax Changes

1. Roles are now prefixed with # instead of @
2. Ids previously did not require a prefix. They now require an @ prefix
3. Entities could previously only be referenced by id. They can now also be referenced by name.
4. Like ids, names must be prefixed with @. Entity references will first be check to see if they are a name. If no name is found then they are treated as ids.

Entity Reference by Name

Previously, entities could be referenced in policies by id. They can now also be referenced by name, using the same syntax. So a service named "ssh" can be referenced as @ssh. If the entity is renamed, the policy will be updated with the updated name.

If a reference matches both a name and an ID, the ID will always take precedence.

Any Of Semantics

Previously polices operated using 'all of' semantics. In other words, to match a policy, an entity had to have ALL OF the role attributes specified by the policy or be listed explicitly by id.

Edge Router and Service policies now have a new field semantics, which may have values of AnyOf or AllOf. If no value is provided, it will default to the original behavior of AllOf. If AnyOf is provided then an entity will match if it matches any of the roles listed, or if it is listed explicitly by id or name.

NOTE Because service edgeRouterRoles are not broken out into a separate policy entity, they do not support AnyOf semantics.

#All limitations

Because having #all grouped with other roles or entity references doesn't make any sense, #all policies must now be created with no other roles or entity references.

Service Edge Router Policy

Previously services could be confgured with edge router roles, which limited which edge routers could be used to dial or bind the service.

In 0.9 that is replaced with a new standalone type: service edge router policies. A service edge router policy has three attributes:

• Name
• Service Roles
• Edge Router Roles

An service can be a member of multiple policies and will have access to the union of all edge routers linked to from those policies.

There is a new /service-edge-router-policies endpoint which can be used for creating/updating/deleting/querying service edge router policies. Service edge router policies PUT/POST/PATCH all take the following properties:

• name
• edgeRouterRoles
• serviceRoles
• tags

IMPORTANT NOTES

1. Previously edge router roles on service could be left blank, and the service would be allowed access to all edge routers. Now, a service must be included in at least one service edge router policy or it cannot be dialed or bound.
1. The set of edge routers an identity can use to dial/bind a service is the intersection of the edge routers that the identity has access to via edge router policies and the edge routers that the service has access to via service edge router policies 

CLI Updates

The CLI now has # create service-edge-router-policy # list service-edge-router-policies # list service-edge-router-policy services # list service-edge-router-policy edge-routers # list services service-edge-router-policies # list edge-router service-edge-router-policies # delete service-edge-router-policy

Session Types

Previously when creating a session a flag named hosting was provided to indicate if this was a Dial or Bind session. Now a field named type should be provided instead with Dial and Bind being accepted values. If no value is provided it will default to Dial.

Ex:

    {
  "serviceId": "a5a0f6af-c833-4961-be0a-c7fb093bb11e",
  "type": "Dial"
}

Similarly, when sessions were listed, they had a hosting flag, which has been replaced by a type flag.

NOTE: Finally when sessions are transmitted between the controller and edge router, the format has also switched from using a hosting flag to a type field. This means that controllers and edge routers will not inter-operate across the the 0.9 version boundary.

Release 0.8

Theme

• Ziti 0.8.0 replaces appwans with role attribute based service policies
• Ziti 0.8.0 consolidates dial and bind permissions into service policies

Service Policy

In 0.7.0 and prior access to services was controlled by appwans.

• Appwans had lists of identities and services
• Identities and services could be associated with 0-n appwans
• Services had explicit lists of identities that could bind the service
• In order to dial a service, the identity had to be an admin or be in at least one appwan with that service
• In order to bind a serivice, the identity had to be able to dial the service and be in the list of identities allowed to bind the service

Release 0.8.0 replaces this model with something new. It has the following goals:

• Allow grouping identities and services dynamically using role attributes rather than hard-coded lists
• Consolidate dial and bind permissions into the same model

The following concepts were introduced in 0.7 for edge router policies. They are now used for service policies as well.

• Role attributes
  • Role attributes are just a set of strings associated to a model entity
  • The semantics of the role attributes are determined by the system administrator
  • Ex: an edge router might have the role attributes ["us-east", "new-york", "omnicorp"]
  • These tags might indicate that this edge router is located on the east coast of the USA, specifically in New York and should be dedicated to use by a customer named OmniCorp
  • Currently role attributes are supported on edge routers and identities
• Roles
  • Roles specify a set of entities
  • Roles may include role attributes as well as entity ids
  • A role will match all entities which either:
    • Have all role attributes in the role OR
    • Have an ID which is listed explicitly
  • Role attributes are prefixed with @. Role elements not prefixed with @ are assumed to be ids
  • There is a special role attribute @all which will match all entities
  • A role may have only role attributes or only ids or may have both

Role Example

• Service with id 1 has role attributes ["sales", "New York City"]
• Service with id 2 has role attributes ["sales", "Albany"]
• Service with id 3 has role attributes ["support", "Los Angeles"]
• A service role of ["@sales", "@New York City", "3"] would evaluate as follows
  • Service 1 would match because it has all listed role attributes
  • Service 2 would not match, because it doesn't have all listed role attributes
  • Service 3 would match because its ID is listed explicitly

Model Changes

Session Names

1. api sessions had two endpoints in 0.7, /api-sessions and /sessions which was deprecated. /sessions is now no longer valid for api sessions
2. sessions used the /network-sessions endpoint. In this release, /network-sessions has been deprecated and /sessions should be used instead.
3. /current-session is now /current-api-session

Session Format

1. When creating a session, the returned JSON has the same base format as when listing sessions, so it now includes the service and api-session information. The only difference is that the session token is also returned from session create, but not when listing sessions.
2. The gateways attribute of session has been renamed to edgeRouters.

Role Attributes

Services now have a roleAttributes field. Identities already had a roleAttributes field, for used with edge router policies.

Service Policies

0.8.0 introduces a new model construct, the Service Policy. This entity allows restricting which services identities are allowed to dial or bind. A service policy has four attributes:

• Name
• Policy Type ("Bind" or "Dial")
• Identity Roles
• Service Roles

An identity can be a member of multiple policies and will have access to the union of all services linked to from those policies.

There is a new /service-policies endpoint which can be used for creating/updating/deleting/querying service policies. Service policies PUT/POST/PATCH all take the following properties:

• name
• type
  • valid values are "Bind" and "Dial"
• identityRoles
• serviceRoles
• tags

There are also new association endpoints allowing the listing of services and identities associated with service policies and vice-versa.

• /service-policies//services
• /service-policies//identities
• /identities//service-policies
• /services//service-policies

Service Access

• An admin may dial or bind any service
• A non-admin identity may dial any service it has access to via service policies of type "Dial"
• A non-admin identity may bind any service it has access to via service policies of type "Bind"

When listing services, the controller used to provide a hostable flag with each service to indicate if the service could be bound in addition to being dialed. Now, the service will have a permissions block which will indicate if the service may be dialed, bound or both.

Ex:

        {
  "meta": {},
  "data": {
    "id": "1012d4d7-3ab3-4722-8fa3-ae9f4da3c8ba",
    "createdAt": "2020-01-04T02:34:00.788444359Z",
    "updatedAt": "2020-01-04T02:34:00.788444359Z",
    "_links": {
      "edge-routers": {
        "href": "./services/1012d4d7-3ab3-4722-8fa3-ae9f4da3c8ba/edge-routers"
      },
      "self": {
        "href": "./services/1012d4d7-3ab3-4722-8fa3-ae9f4da3c8ba"
      },
      "service-policies": {
        "href": "./services/1012d4d7-3ab3-4722-8fa3-ae9f4da3c8ba/identities"
      }
    },
    "tags": {},
    "name": "cac9593c-0494-4800-9f70-c258ff28a702",
    "dns": {
      "hostname": "0bf71754-ed5b-4b2d-9adf-a542f1284275",
      "port": 0
    },
    "endpointAddress": "4662d564-3fc3-4f10-b8cd-ee0e3629ad24",
    "egressRouter": "aedab92f-2ddf-445a-9194-73d428322a34",
    "edgeRouterRoles": null,
    "roleAttributes": [
      "2c68789a-fe71-4d25-a483-43e54ee4fd98"
    ],
    "permissions": [
      "Bind"
    ]
  }
}

Appwan Removal and Migration

The /app-wans endpoint has been removed. The bbolt schema version has been bumped to 3. If starting a fresh controller no action will be taken. However, if coming from an existing 0.7 or earlier bbolt database, the following will be done:

1. For each existing appwan, a service policy with type "Dial" will be created
2. The new service policy will have the same name as the appwan it replaces
3. The new service policy will have the same identities and services as the appwan it replaces
4. Identities and services will be specified explicitly by ID rather as opposed to by creating new role attributes

NOTE: Service hosting identities will not be migrated into equivalent Bind service policies, as binds are not yet used in any production scenarios.

Go SDK changes

Several types have been renamed to conform to standard nomenclature

• Session is now ApiSession
• NetworkSession is now Session
  • The SessionId field is now ApiSessionId
  • The Gateways field is now EdgeRouters
• Gateway is now EdgeRouter
• On the Service type the Hostable flag has been removed and replaced with a Permissions string array
  • It may be nil, empty or contain either or both of "Dial" and "Bind"
• On the Context type
  • GetNetworkSession is now GetSession
  • GetNetworkHostSession is now GetBindSession

ziti command line changes

1. The ziti edge controller create/delete gateway commands have been removed. Use ziti edge controller create/delete edge-router instead.
2. There are new ziti edge controller create/delete service-policy commands

Ziti Proxy changes

ziti-proxy has been incorporated into the ziti-tunnel command. Where previously one would have run

ZITI_SDK_CONFIG=./config.json ziti-proxy run <proxied services>

now one should use

ziti-tunnel proxy -i ./config.json <proxied services>

Release 0.7

Theme

• Ziti 0.7.0 replaces clusters with role attribute based policies
• Ziti 0.7.0 takes steps towards consistent terminology for sessions

Edge Router Policy

In 0.6.0 access to edge routers was controlled by clusters and services.

• Every edge router was assigned to a cluster
• Services belonged to 1 or more clusters
• Dial/bind request would results would include a list of edge routers which were
  • in clusters linked to the dialed/bound service and
  • were online when the request was made

Release 0.7.0 replaces this model with something new. It has the following goals:

• Allow grouping edge routers and other entities dynamically using role attributes rather than hard-coded lists
• Allow restricting access to edge router by identity in addition to by service

It includes the following new concepts:

• Role attributes
  • Role attributes are just a set of strings associated to a model entity
  • The semantics of the role attributes are determined by the system administrator
  • Ex: an edge router might have the role attributes ["us-east", "new-york", "omnicorp"]
  • These tags might indicate that this edge router is located on the east coast of the USA, specifically in New York and should be dedicated to use by a customer named OmniCorp
  • Currently role attributes are supported on edge routers and identities
• Roles
  • Roles specify a set of entities
  • Roles may include role attributes as well as entity ids
  • A role will match all entities which either:
    • Have all role attributes in the role OR
    • Have an ID which is listed explicitly
  • Role attributes are prefixed with @. Role elements not prefixed with @ are assumed to be ids
  • There is a special role attribute @all which will match all entities
  • A role may have only role attributes or only ids or may have both

Role Example

• Edge router with id 1 has role attributes ["us-east", "New York City"]
• Edge router with id 2 has role attributes ["us-east", "Albany"]
• Edge router with id 3 has role attributes ["us-west", "Los Angeles"]
• An edge router role of ["@us-east", "@New York City", "3"] would evaluate as follows
  • Edge router 1 would match because it has all listed role attributes
  • Edge router 2 would not match, because it doesn't have all listed role attributes
  • Edge router 3 would match because its ID is listed explicitly

Model Changes

Role Attributes

Edge routers and identities now have roleAttributes fields. Edge routers no longer have an associated cluster.

Edge Router Policies

0.7.0 introduces a new model construct, the Edge Router Policy. This entity allows restricting which edge routers identities are allowed to use. An edge router policy has three attributes:

• Name
• Identity Roles
• Edge Router Roles

An identity can be a member of multiple policies and will have access to the union of all edge routers linked to from those policies.

There is a new /edge-router-policies endpoint which can be used for creating/updating/deleting/querying edge router policies. Edge router policies PUT/POST/PATCH all take the following properties:

• name
• edgeRouterRoles
• identityRoles
• tags

Service Edge Router Roles

Services now have a new edgeRouterRoles field. If set, this specifies which edge routers may be used for a service. This replaces the old cluster functionality.

Edge Router Access

When a service is dialed or bound, which edge routers will be returned?

• If the service edgeRouterRoles are NOT set, then it will be the set of edge routers to which the dialing/binding identity has access
• If the service edgeRouterRoles ARE set, then it will be the intersection of the edge routers to which the service has access and the set of edge routers to which the identity has access

Cluster Removal and Migration

The /clusters endpoint has been removed. The bbolt schema version has been bumped to 2. If starting a fresh controller no action will be taken. However, if coming from an existing 0.6 or earlier bbolt database, the following will be done:

1. An edge router policy will be created with @all for both identityRoles and edgeRouterRoles, allowing access to all edge routers from all identities. This will allow the current identities to continue using the system. Otherwise, no identities would be able to connect to any edge routers.
2. Each edge router will get a role attribute of cluster-<cluster name> for the cluster it belonged to
3. If a service belongs to 1 or more clusters it will get a role attribute corresponding to the first cluster. Any edge routers assigned to additional clusters will be added to edge router roles field by ID.
   1. Noe: If we were to add additional role clusters for the other clusts we'd get the intersection, not the union and would end up with access to 0 edge routers

Session changes

Terminology related to sessions is being made consistent between the edge and fabric.

There are two types of sessions:

1. Sessions between edge clients the edge controller, which allowed clients to manage controller state as well as dial and bind services
   1. These were referred to as sessions in the edge and have no fabric equivalent
2. Sessions which establish routing and allow data flow to/from/within the edge and fabric
   1. These were referred to as network sessions in the edge and sessions in the fabric

Going forward, what was called a session in the edge will now be referred to as an API session. What was called a network session will be now just be called session in both the edge and fabric.

As a first step, in 0.7.0 API sessions will be available at both the /sessions and /api-sessions endpoints. Use of the /sessions endpoint is deprecated. In later releases the /sessions endpoint will be used for sessions instead of API sessions.

Release 0.6

Theme

Ziti 0.6.0 moves the back-end persistence model of Ziti Edge and Ziti Fabric into the same repository based on Bbolt (an in memory data store that is backed by a memory mapped file). The changes remove the requirement for PostgresSQL.

UPDB Enrollment JWTs

Enrollments that are for UPDB (username password database) are now consistent with all other enrollment and use JWTs for processing. Prior to this a naked URL was provided.

What This Breaks

Any UPDB enrollment processing that relied upon the URL for the enrollment.

Ziti 0.5.x UPDB enrolling entity

{
    "meta": {},
    "data": {
        "id": "612843ae-6ac8-48ac-a737-bfc2d28ab9ea",
        "createdAt": "2019-11-21T17:23:00.316631Z",
        "updatedAt": "2019-11-21T17:23:00.316631Z",
        "_links": {
            "self": {
                "href": "./identities/612843ae-6ac8-48ac-a737-bfc2d28ab9ea"
            }
        },
        "tags": {},
        "name": "updb--5badbdc5-e8dd-4877-82df-c06aea7f1197",
        "type": {
            "id": "577104f2-1e3a-4947-a927-7383baefbc9a",
            "name": "User"
        },
        "isDefaultAdmin": false,
        "isAdmin": false,
        "authenticators": {},
        "enrollment": {
            "updb": {
                "username": "asdf",
                "url": "https://demo.ziti.netfoundry.io:1080/enroll?method=updb&token=911e6562-0c83-11ea-a81a-000d3a1b4b17&username=asdf"
            }
        },
        "permissions": []
    }
}

Ziti 0.6.x UPDB enrolling entity (note the changes in the enrollment.updb object):

{
    "meta": {},
    "data": {
        "id": "39f11c10-0693-41ed-9bec-8011e2721562",
        "createdAt": "2019-11-21T17:28:18.2855234Z",
        "updatedAt": "2019-11-21T17:28:18.2855234Z",
        "_links": {
            "self": {
                "href": "./identities/39f11c10-0693-41ed-9bec-8011e2721562"
            }
        },
        "tags": {},
        "name": "updb--b55f5372-3993-40f5-b534-126e0dd2f1be",
        "type": {
            "entity": "identity-types",
            "id": "577104f2-1e3a-4947-a927-7383baefbc9a",
            "name": "User",
            "_links": {
                "self": {
                    "href": "./identity-types/577104f2-1e3a-4947-a927-7383baefbc9a"
                }
            }
        },
        "isDefaultAdmin": false,
        "isAdmin": false,
        "authenticators": {},
        "enrollment": {
            "updb": {
                "expiresAt": "2019-11-21T17:33:18.2855234Z",
                "issuedAt": "2019-11-21T17:28:18.2855234Z",
                "jwt": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJlbSI6InVwZGIiLCJleHAiOjE1NzQzNTc1OTgsImlzcyI6Imh0dHBzOi8vbG9jYWxob3N0OjEyODAiLCJqdGkiOiJiYzBlY2NlOC05ZGY0LTQzZDYtYTVhMC0wMjI1MzY2YmM4M2EiLCJzdWIiOiIzOWYxMWMxMC0wNjkzLTQxZWQtOWJlYy04MDExZTI3MjE1NjIifQ.PUcnACCdwqfWRGRzF8lG6xDTgHKAwKV6eTw8tHFuNBXaUNbqExBwUQEW0-cCHsV-nLEyhxyjhXmVCkIDgz-ukKfS0xStiDrJQbiq8m0auodkArmJSsYzElXkKdv37FHu0t-CGoXptdLyuo9eCnzzmci3ev18zMR5HjYMCQEclELV6OEICNr_0EwhAGJa1yX6ODYrLMZ3SdEd6fj-ZGX7j9owTs6iEsqCB_TORfnGGg6lEINE5GlYsyp7JUxolS6H4lPeN5h2mxk2_OkJY8GX3ydv75LsIZ-jjL3xC5XncCESrefgDabib1fudJ4038D0EzqTcOREPAqmjWhnDhTulQ",
                "token": "bc0ecce8-9df4-43d6-a5a0-0225366bc83a"
            }
        },
        "permissions": []
    }
}

What To Do

Use the new JWT format to:

verify the signature of the JWT to match the iss URL's TSL presented certificates construct the enrollment url from the JWTs properties in the following format:

<iss> + "/enroll?token=" + <jti>

Multiple Invalid Value Error Handling

Errors where there is the potential to report about multiple invalid field values for a given field used to report as a separate error for each value. Now there will be one error, but the values field will hold the invalid values.

Old Format

{
    "error": {
        "args": {
            "urlVars": {
                "id": "097018b6-108e-42b3-869b-deb9e1814594"
            }
        },
        "cause": {
            "errors": [
                {
                    "message": "entity not found for id [06ecf930-3a9f-4a6c-98b5-8f0be1bde9e2]",
                    "field": "ids[0]",
                    "value": "06ecf930-3a9f-4a6c-98b5-8f0be1bde9e2"
                }
            ]
        },
        "causeMessage": "There were multiple field errors: the value '06ecf930-3a9f-4a6c-9...' for 'ids[0]' is invalid: entity not found for id [06ecf930-3a9f-4a6c-98b5-8f0be1bde9e2]",
        "code": "INVALID_FIELD",
        "message": "The field contains an invalid value",
        "requestId": "48ea4bce-f233-410e-a062-5dbceee20223"
    },
    "meta": {
        "apiEnrolmentVersion": "0.0.1",
        "apiVersion": "0.0.1"
    }
}

New Format

{
    "error": {
        "args": {
            "urlVars": {
                "id": "5b15c442-5590-4c58-8bc7-0da788e0cfcf"
            }
        },
        "cause": {
            "message": "clusters(s) not found",
            "field": "clusters",
            "value": [
                "68f8739f-cf52-4d51-9553-dfe7cf9c6a03"
            ]
        },
        "causeMessage": "the value '[68f8739f-cf52-4d51-9553-dfe7cf9c6a03]' for 'clusters' is invalid: clusters(s) not found",
        "code": "INVALID_FIELD",
        "message": "The field contains an invalid value",
        "requestId": "ab6553e8-e9b1-408c-9fed-11cc627cfd84"
    },
    "meta": {
        "apiEnrolmentVersion": "0.0.1",
        "apiVersion": "0.0.1"
    }
}