rcourtman b0ba51db16 Judge resources API freshness by the monitor's thresholds (#2745)
Supersedes #2737, rebuilt on current main because its merge with main
conflicted in four files (`monitor.go`, `registry.go`,
`canonical_guardrails_test.go`, `code_standards_test.go`) and a
conflicted merge cannot pass the commit hooks.

The resources API rebuilt its registry from the monitor's unified seed
with the registry default stale thresholds, while the monitor judges
each source by its configured polling cadence (Proxmox/PBS/PMG: max(2x
polling interval, default)). Presentation coalescing used the defaults
too, in both the websocket broadcast and `/api/resources`.

Reproduced before the fix (Proxmox polled every two minutes, read 90
seconds after its poll, agent silent for 75 seconds):

| | websocket, before | `/api/resources`, before | both, after |
|---|---|---|---|
| Proxmox sighting | online | stale | online |
| node status | online | warning | online |
| CPU on a node whose agent keeps its own row (coalesced by hostname) |
70% (silent agent) | 70% (silent agent) | 20% (node's poll) |

## Change

- The seed carries the thresholds its registry generation was judged by.
`MonitorAdapter` records them per generation (`StaleThresholds`,
`GetAllWithMetricsTargetsAndStaleThresholds`). Thresholds set since the
last rebuild wait for the next one, and overlays and live supplemental
refreshes of a generation are judged by its thresholds. A view built
from mock fixtures or a bare snapshot reports none (the defaults it was
judged by).
- `Monitor.UnifiedResourceSnapshotWithStaleThresholds` and
`MultiTenantStateProvider.UnifiedResourceSnapshotWithStaleThresholdsForTenant`
hand seed, freshness and thresholds over from one view.
- `resourceapi` builds its registry with
`NewRegistryWithStaleThresholds` (ingests and stale passes that pass
none use them) and keys its cache on its own copy of the thresholds.
- The coalesce judges metric freshness with `metricSourceStale`, the
rule the stale pass and merge already share. The broadcast and
`ListForPresentation` pass their view's thresholds.
- Conflict resolution with main's exclusion-aware coalesce
(#2725/#2739): `ListForPresentation` passes both its exclusion filter
and its construction thresholds;
`MonitorAdapter.CoalesceForPresentation(resources, thresholds)` takes
the listing's thresholds next to the exclusions, and
`Monitor.coalesceResourcesForPresentation` passes the broadcast view's,
falling back to `CoalescePresentationHostResourcesWithStaleThresholds`.

Not changed here: Patrol's scoped runtime state still rebuilds
registries with the defaults, and PBS/PMG thresholds read the config
rather than runtime polling overrides. Both predate this change.

## Verification

- New: `TestContract_ResourceListJudgesFreshnessLikeTheMonitorBroadcast`
(default monitor, tenant monitor, monitor without a resource store, each
against the same monitor's broadcast),
`TestRegistrySeededFromMonitorJudgesFreshnessByItsThresholds`,
`TestMonitorAdapterReportsTheThresholdsItsGenerationWasJudgedBy`,
`TestUnifiedViewCarriesItsGenerationsStaleThresholds`,
`TestBroadcastCoalescedHostJudgesFreshnessByConfiguredThresholds`,
`TestResourceListRebuildsWhenSeedStaleThresholdsChange`, plus source
guardrails.
- Negative controls: each new test fails with its runtime piece reverted
(base `resources.go`, coalesce by defaults, providers dropping
thresholds, cache keeping the provider's map, adapter reporting pending
thresholds, overlay judged by pending thresholds).
- Full `internal/unifiedresources`, `internal/api/resourceapi` and
`internal/monitoring` suites pass. Re-run on the rebuilt tree: full
`internal/unifiedresources`, `internal/api/resourceapi` and
`internal/monitoring` suites pass, plus the stale-threshold,
resource-list and contract tests in `internal/api`. The full
`internal/api` suite passes except
`TestServerInfoEndpointReportsDevelopment`, which fails only because the
test tree had no `.git`.
2026-10-08 09:19:38 +01:00
2026-10-05 21:53:41 +01:00
2026-03-18 16:06:30 +00:00
2026-10-05 21:53:41 +01:00
2026-03-18 16:06:30 +00:00
2025-10-11 23:29:47 +00:00
2026-03-18 16:06:30 +00:00
2026-10-05 21:53:41 +01:00

Pulse

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Real-time Proxmox, Docker and Kubernetes monitoring that finds what needs attention.

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Pulse is a self-hosted monitoring workspace for Proxmox, Docker, Kubernetes, TrueNAS, physical and virtual machines, and early-access VMware vSphere environments. It combines live infrastructure state, history, alerts, recovery visibility, and scheduled health checks without requiring a conventional enterprise monitoring stack.

Pulse Proxmox workspace

Why Pulse

  • It watches between visits. Alerts and Pulse Patrol find failed backups, capacity pressure, restart loops, unhealthy containers, clock drift, and other problems that dashboards cannot surface when nobody is looking.
  • It keeps each platform familiar. Proxmox, Docker, Kubernetes, TrueNAS, vSphere, and machines have dedicated views, backed by one shared resource model for search, alerts, history, and investigation.
  • It stays operator-controlled. Credentials are encrypted at rest, API tokens are scoped, agent commands are disabled by default, and governed fixes require the configured policy and approval path.

Platform coverage

Platform Coverage
Proxmox VE, PBS, and PMG Nodes, guests, storage, backups, replication, Ceph, mail gateways, and alerts
Docker and Podman Hosts, containers, Compose projects, Swarm services, health, images, and updates
Kubernetes Clusters, nodes, workloads, pods, services, storage, and events through the unified agent
TrueNAS SCALE and CORE Pools, datasets, disks, snapshots, replication tasks, apps, VMs, and alerts
Linux, Windows, and macOS machines Host health, filesystems, networking, temperatures, RAID, and availability through the unified agent
VMware vSphere Early-access inventory, hosts, clusters, VMs, datastores, networks, snapshots, and recovery context; validate against your own vCenter before production use

Platform pages keep storage and recovery information beside the infrastructure it belongs to. Alerts, Actions, and Patrol remain cross-platform views.

Patrol: monitoring that does rounds

Pulse Patrol runs scheduled checks across the current state and recent history of your infrastructure. Community installations can use a local model or their own AI provider for watch-only analysis. Pulse Pro adds investigation and policy-bound fixes with approval, verification, and an audit trail.

Pulse Patrol attention queue

Pulse also includes an interactive Assistant and an MCP adapter for external clients such as Claude Code and OpenCode. Both sit on top of the same scoped inventory, metrics, alert, storage, and governed-action contracts.

Quick start

Choose an exact version from the latest release and keep that version pinned during installation.

Docker

docker run -d \
  --name pulse \
  -p 7655:7655 \
  -v pulse_data:/data \
  -e PULSE_DEPLOYMENT_METHOD=docker_run \
  --restart unless-stopped \
  rcourtman/pulse:vX.Y.Z

Open http://<your-ip>:7655 and follow the bootstrap-token setup. Docker host monitoring is provided by the unified agent; the Pulse server container does not need the Docker socket.

Proxmox LXC, Linux, and Kubernetes

The installer is signed. Verify install.sh against the pinned pulse-installer key before running it:

export PULSE_VERSION=vX.Y.Z
curl -fsSLO "https://github.com/rcourtman/Pulse/releases/download/${PULSE_VERSION}/install.sh" &&
curl -fsSLO "https://github.com/rcourtman/Pulse/releases/download/${PULSE_VERSION}/install.sh.sshsig" &&
ssh-keygen -Y verify \
  -f <(printf '%s\n' 'pulse-installer namespaces="pulse-install" ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMZd/DaH+BldzOkq1A8KVTcFk73nAyrE8aJOyf7i00jm pulse-installer') \
  -I pulse-installer \
  -n pulse-install \
  -s install.sh.sshsig < install.sh &&
bash install.sh --version "${PULSE_VERSION}"

Paste the whole block: installation stops if either download or signature verification fails. Do not run the final command separately to bypass a failure.

The GitHub installer installs the Pulse server. Install and upgrade agents (including v5-to-v6 agent upgrades) with the per-host command generated under Settings → Infrastructure → Install on a host.

Do you need an agent?

Often not. Proxmox VE, PBS, and PMG are monitored through the Proxmox API with a read-only token, so nothing runs on the host and the generated setup script creates a privilege-separated monitoring user. Install the unified agent only where you want data the platform API cannot provide, such as host SMART health, temperatures, Docker hosts, or standalone machines.

The agent is operator-controlled by design. Command execution is off by default, the local listener binds to localhost, and generated systemd units ship hardened. On Linux, the installer's --least-privilege profile runs the service as a dedicated non-root user, with optional scoped sudo grants for the few collectors that need elevation. The agent security model documents exactly what the agent can and cannot do at each privilege level.

Important

GitHub release assets and rcourtman/pulse images are Community builds. Relay, Pro, and eligible legacy customers should use the private image or Linux archive provided by the Pulse download portal. Replacing a private Pro runtime with a public Community build removes its private runtime hooks.

Editions

  • Community — self-hosted monitoring, seven days of metric history, core SSO, update alerts, and Patrol with your own provider or local model.
  • Pro — Community plus Patrol investigation, governed fixes, ninety days of history, centralized agent profiles, RBAC, audit logging, and reporting.
  • MSP — for managed service providers: one Pulse Account running many client workspaces, each with an isolated Pulse runtime — separate dashboards, alerts, users, audit history, and reports. Free sixty-day two-client evaluation at Pulse for MSPs.

Relay is no longer sold. Existing Relay subscribers receive Pro features at their current price for as long as their subscription continues. Existing paired phones keep working until 31 March 2027. Relay connects the app, not the web UI. Use your own VPN or tunnel for remote web access. For phone alerts, add an ntfy, Gotify or Pushover destination and open Pulse in your phone's browser.

Core self-hosted monitoring is not gated by monitored-system or child-resource volume. See the runtime-aligned capability reference and current plans for details.

Documentation

Localized getting started guides: Deutsch · Español

Development

Pulse uses Go 1.26 and a SolidJS/TypeScript frontend. The managed development runtime starts the frontend at http://127.0.0.1:5173 and proxies API and WebSocket traffic to the backend on port 7655.

npm ci
npm --prefix frontend-modern ci
npm run dev

Useful checks:

go test ./...
npm --prefix frontend-modern test
npm --prefix frontend-modern run type-check
python3 scripts/check_public_docs.py

See CONTRIBUTING.md before investing in a code change. Pulse uses an issue-first contribution process and does not normally accept unsolicited pull requests.

Community and support

License

Everything in this repository is licensed under the MIT License. There is no dual licensing and no commercial or source-available code here.

Pulse Pro is a separate commercial product, built from private sources and distributed through pulserelay.pro. Its use is governed by the Terms of Service, which apply to that product only, not to anything in this repository.

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Description
Monitoring for Proxmox, Docker, Kubernetes, TrueNAS, and vSphere that watches your infrastructure for you: smart alerts, AI patrols that catch silent failures, and verified fixes
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