Critical alerts can no longer be silently dropped by a transient
notifier failure. Failed notification attempts now ride an exponential
backoff retry loop, with a 5-attempt budget before promotion to the
dead-letter queue for operator intervention.
Schema (migration 000016, idempotent):
- retry_count INTEGER NOT NULL DEFAULT 0
- next_retry_at TIMESTAMPTZ
- last_error TEXT
- idx_notification_events_retry_sweep partial index
(next_retry_at) WHERE status='failed' AND next_retry_at IS NOT NULL
Dead rows clear next_retry_at so the index stops matching them.
Service contract:
- NotificationService.RetryFailedNotifications drives 2^n-minute
exponential backoff capped at 1h (notifRetryBackoffCap) with
5-attempt budget (notifRetryMaxAttempts).
- Exhaustion (RetryCount >= notifRetryMaxAttempts-1) promotes to
status='dead' via MarkAsDead.
- Non-terminal failures record via RecordFailedAttempt.
- Success path promotes to 'sent' without touching retry_count
(audit preserves "delivered on attempt N").
- Missing-notifier branch defensively promotes to 'sent' to avoid
wedging a row on a deleted channel.
- RequeueNotification operator escape hatch atomically resets
retry_count -> 0, next_retry_at -> NULL, last_error -> NULL,
status -> pending via notifRepo.Requeue.
Scheduler:
- New always-on notificationRetryLoop wired into the base loop set at
CERTCTL_NOTIFICATION_RETRY_INTERVAL (default 2m).
- sync/atomic.Bool idempotency guard.
- sync.WaitGroup shutdown drain via WaitForCompletion.
StatsService:
- SetNotifRepo setter pattern preserves 9 pre-existing
NewStatsService call sites (main.go + stats_test.go + 8 digest
tests) without touching the constructor signature.
- DashboardSummary.NotificationsDead populated via
notifRepo.CountByStatus(ctx, "dead") — nil-safe when unwired
(reports zero on systems without a notification repository).
- CountByStatus error is non-fatal (dashboard summary is
best-effort for this field).
- Prometheus certctl_notification_dead_total counter emitted from
the same snapshot.
Handler:
- New POST /api/v1/notifications/{id}/requeue endpoint.
- dead status surfaces to MCP + CLI.
Frontend:
- NotificationsPage gains two-tab toolbar ("All" / "Dead letter")
with queryKey: ['notifications', activeTab] so switching tabs
doesn't serve stale data until the 30s refetch.
- Dead rows surface "Retry {n}/5" + truncated last_error with
full-text title tooltip.
- Requeue mutation wrapped as
mutationFn: (id: string) => requeueNotification(id)
to prevent react-query v5's positional context argument from
leaking into the API client — pinned against future refactors
by strict-match toHaveBeenCalledWith('notif-dead-001') in
NotificationsPage.test.tsx:181.
Closes I-005.
Operator decision answered as full soft-delete with optional forced
cascade — hard-delete is not reachable from any public surface. Prior
to this commit, DELETE /agents/{id} ran a plain `DELETE FROM agents`
whose schema-level `ON DELETE CASCADE` on deployment_targets.agent_id
silently wiped every target, orphaning certs and aborting in-flight
jobs. The finding closure reshapes the agent-removal contract around
soft retirement with explicit preflight counts, an opt-in cascade
gated by a mandatory reason, and unconditional protection for the
four reserved sentinel agents used by discovery sources.
Schema — migration 000015:
migrations/000015_agent_retire.up.sql flips
deployment_targets_agent_id_fkey from ON DELETE CASCADE to ON DELETE
RESTRICT, so a stray `DELETE FROM agents` now errors at the DB
boundary instead of quietly destroying targets. Both `agents` and
`deployment_targets` grow a retired_at TIMESTAMPTZ + retired_reason
TEXT pair (TEXT not VARCHAR so operator comments are never
truncated), indexed via partial indexes WHERE retired_at IS NOT
NULL. The migration is self-healing (ADD COLUMN IF NOT EXISTS, DROP
CONSTRAINT IF EXISTS then ADD CONSTRAINT, CREATE INDEX IF NOT
EXISTS) so repeated runs against partially-migrated databases
converge. migrations/000015_agent_retire.down.sql restores CASCADE
and drops the new columns for clean rollback. A dedicated
repository-layer testcontainers test
(internal/repository/postgres/migration_000015_test.go) asserts the
before/after FK action, column presence, index presence, and
round-trip idempotency under up→down→up.
Domain — sentinel guard + dependency counts:
internal/domain/connector.go gains IsRetired() on Agent, the
exported SentinelAgentIDs slice listing server-scanner,
cloud-aws-sm, cloud-azure-kv, cloud-gcp-sm verbatim (matching the
four reserved IDs documented in CLAUDE.md and created at startup in
cmd/server/main.go), IsSentinelAgent(id string) predicate,
AgentDependencyCounts{ActiveTargets, ActiveCertificates,
PendingJobs} with a HasDependencies() method, and ActorTypeAgent /
ActorTypeSystem enum values used by audit emission downstream.
Coverage locked down by internal/domain/connector_test.go.
Service — 8-step ordered contract:
internal/service/agent_retire.go:RetireAgent(ctx, id, actor,
opts{Force, Reason}) enforces a fixed execution order:
(1) sentinel guard — IsSentinelAgent(id) returns ErrAgentIsSentinel
unconditionally; force=true does NOT bypass it.
(2) fetch — ErrAgentNotFound on miss.
(3) idempotency — if IsRetired() already, return
AgentRetirementResult{AlreadyRetired: true} with no new audit
event and no state change (safe to replay from flaky clients).
(4) preflight counts — collectAgentDependencyCounts runs
ActiveTargets, ActiveCertificates, PendingJobs sequentially
(not in parallel; keeps the per-query timeout predictable and
matches the repo's existing call-chain shape).
(5) force-reason guard — opts.Force=true with empty Reason returns
ErrForceReasonRequired (wired into the 400 status surface).
(6) dependency guard — HasDependencies() with opts.Force=false
returns BlockedByDependenciesError{Counts} (wired into the 409
body with per-bucket counts).
(7) mutation — single pinned retiredAt := time.Now(); agent
retirement first, then cascade target retirement if opts.Force,
all under the repo's single transaction so the two retired_at
stamps match to the second.
(8) best-effort audit — agent_retired always; agent_retirement_
cascaded additionally on the force path. Actor is whatever the
handler resolves from the request; actor type is mapped by
resolveActorType (system/agent-prefix→Agent/else→User). Audit
emission failures are logged via slog.Error but do not abort
the retirement (matches the house convention used by every
other scheduler-emitted event).
BlockedByDependenciesError implements Error() as
"active_targets=%d, active_certificates=%d, pending_jobs=%d" and
Unwrap() → ErrBlockedByDependencies. The single struct satisfies
errors.Is via Unwrap (used by scheduler-level tests) and errors.As
via the concrete type (used by the handler to fish out Counts for
the 409 body). ListRetiredAgents(page, perPage) adds a separate
paginated accessor with page<1→1 and perPage<1→50 normalization so
retired rows are queryable without polluting the default agent
listing.
Sentinel guard coverage is asymmetric by design: all four reserved
IDs are protected, and force=true cannot override. Regression tests
in internal/service/agent_retire_test.go assert each of the eight
steps in order, plus sentinel bypass attempts and idempotency
replay.
Handler + router — status-code surface:
internal/api/handler/agents.go:RetireAgent exposes seven status
codes on DELETE /agents/{id}:
200 on a fresh retirement (body echoes AgentRetirementResult).
204 on idempotent replay (AlreadyRetired=true; no new audit).
400 on ErrForceReasonRequired.
403 on ErrAgentIsSentinel.
404 on ErrAgentNotFound.
409 on BlockedByDependenciesError, with a custom body shape
{error, counts{active_targets, active_certificates,
pending_jobs}} that bypasses the default ErrorWithRequestID
envelope so callers get the per-bucket numbers directly.
500 on any other error.
Heartbeat HandleHeartbeat returns 410 Gone when the agent is
retired (ErrAgentRetired), signalling the agent to shut down.
Query params `force=true` and `reason=<text>` drive the cascade
path; both are forwarded as url.Values through the new MCP
transport.
internal/api/router/router.go registers GET /api/v1/agents/retired
literal-path BEFORE /api/v1/agents/{id} — Go 1.22 ServeMux's
literal-beats-pattern-var precedence routes "retired" to the
paginated retired-agents listing instead of fetching a hypothetical
agent named "retired".
Agent binary — clean shutdown on 410:
cmd/agent/main.go gains the ErrAgentRetired sentinel, a
retiredOnce sync.Once, and a retiredSignal chan struct{}. A
markRetired(source, statusCode, body) helper closes the channel
exactly once; the Run() select loop observes the close and returns
ErrAgentRetired; main() matches via errors.Is(err, ErrAgentRetired)
and exits cleanly instead of spinning in the heartbeat retry loop.
The 410 Gone surface is therefore terminal for the agent process.
MCP transport:
internal/mcp/client.go adds Client.DeleteWithQuery(path, query),
a new additive transport method. Client.Delete is path-only; without
this method the retire tool would silently drop `force` and `reason`,
turning every cascade retire into a default soft-retire. The new
method shares do()'s 204 normalization and 4xx/5xx error
propagation so tool authors get one contract.
internal/mcp/tools.go + internal/mcp/types.go expose the
retire_agent tool with Force+Reason inputs wired through
DeleteWithQuery.
CLI:
cmd/cli/main.go + internal/cli/client.go add two CLI surfaces:
`agents list --retired` (client-side strip of --retired then
delegation to ListRetiredAgents, sharing --page/--per-page parsing
with the default listing) and `agents retire <id> [--force --reason
"…"]` (mirrors ErrForceReasonRequired — force without reason is
rejected client-side before the request is sent). JSON + table
output modes both honor the new columns.
Frontend:
web/src/pages/AgentsPage.tsx surfaces retired/retire affordances.
web/src/api/client.ts + web/src/api/types.ts expose the retire
endpoint and the retired-listing. 4 new Vitest regression cases.
OpenAPI:
api/openapi.yaml documents DELETE /agents/{id} with all seven
status codes, 410 on heartbeat, and the 409 per-bucket body shape.
Regression coverage (six new test files, all green):
internal/service/agent_retire_test.go — 8-step contract + sentinel guards
internal/api/handler/agent_retire_handler_test.go — 7-status-code surface + 410 heartbeat
internal/mcp/retire_agent_test.go — DeleteWithQuery wire-through
internal/cli/agent_retire_test.go — --retired listing + --force/--reason pairing
internal/repository/postgres/migration_000015_test.go — FK flip + columns + indexes + up↔down
internal/domain/connector_test.go — IsRetired, IsSentinelAgent, SentinelAgentIDs, HasDependencies
Files:
api/openapi.yaml — DELETE + 410 + 409 body shape
cmd/agent/main.go — ErrAgentRetired, markRetired, retiredSignal
cmd/cli/main.go — handleAgents list/get/retire dispatch
docs/architecture.md, docs/concepts.md,
docs/testing-guide.md — retirement contract narrative
internal/api/handler/agents.go — RetireAgent, status surface, 410 on heartbeat
internal/api/handler/agent_handler_test.go — extended coverage
internal/api/handler/agent_retire_handler_test.go — new
internal/api/router/router.go — /agents/retired before /agents/{id}
internal/cli/agent_retire_test.go — new
internal/cli/client.go — ListRetiredAgents + RetireAgent
internal/domain/connector.go — IsRetired, SentinelAgentIDs,
IsSentinelAgent, AgentDependencyCounts,
ActorTypeAgent/System
internal/domain/connector_test.go — new
internal/integration/lifecycle_test.go — retirement fixture
internal/mcp/client.go — DeleteWithQuery additive transport
internal/mcp/retire_agent_test.go — new
internal/mcp/tools.go, internal/mcp/types.go — retire_agent tool + Force/Reason inputs
internal/repository/interfaces.go — AgentRepository retirement methods
internal/repository/postgres/agent.go — retire + cascade target retire + counts
internal/repository/postgres/migration_000015_test.go — new
internal/service/agent.go — wire into AgentService surface
internal/service/agent_retire.go — new 8-step contract
internal/service/agent_retire_test.go — new
internal/service/deployment.go — skip retired agents
internal/service/target.go — skip retired agents
internal/service/testutil_test.go — shared mocks extended
migrations/000015_agent_retire.up.sql — new
migrations/000015_agent_retire.down.sql — new
web/src/api/client.ts, types.ts + tests — retire endpoint wiring
web/src/pages/AgentsPage.tsx — retire UI
Closes the remaining P1 gaps from coverage-gap-audit.md (M-001/M-002/M-003/M-006)
on top of the C-001/C-002 ownership + agent-FK contract fixes landed in
a53a4b8. The work lands as a single commit spanning server, docs, tests,
and the React client.
M-002 — Named API keys with per-key actor propagation
* Migration 000014 adds the 'api_keys' table (id, name, hash,
principal, role, created_at, last_used_at, disabled_at) so every
credential carries an identifiable principal instead of the
opaque 'anonymous'/'api-key' sentinel.
* Auth middleware now rotates through configured keys, performs
constant-time hash comparison, stamps 'last_used_at', and emits
an actor struct via contextWithActor(). The audit middleware,
bulk-revocation handler, approval handlers, and MCP tool layer
now read the principal off the context and persist it on every
audit_events row.
* Regression coverage:
- internal/api/middleware/audit_test.go — actor propagation,
principal redaction for disabled keys, anonymous fallback for
unauthenticated endpoints.
- internal/api/handler/bulk_revocation_handler_test.go,
job_handler_test.go — principal-on-audit assertions.
M-003 — Authorization gates (Phase B)
* Approval handler rejects self-approval / self-rejection with 403
when the actor principal equals the job's requested_by field.
* Bulk revocation is gated behind the 'admin' role; operators and
viewers receive 403.
* Regression coverage:
- internal/service/job_test.go — TestApproveJob_NotSelf,
TestRejectJob_NotSelf.
- internal/api/handler/bulk_revocation_handler_test.go —
TestBulkRevoke_RequiresAdmin, TestBulkRevoke_AdminSucceeds.
M-006 — RFC-compliant CRL/OCSP on the unauthenticated .well-known mux
* Per RFC 8615, relying parties cannot reasonably be asked to
authenticate against the issuing certctl instance to retrieve
revocation material. CRL and OCSP move off the authenticated
'/api/v1/crl*' and '/api/v1/ocsp/*' paths onto:
GET /.well-known/pki/crl/{issuer_id}
Content-Type: application/pkix-crl (RFC 5280 §5)
GET /.well-known/pki/ocsp/{issuer_id}/{serial}
Content-Type: application/ocsp-response (RFC 6960)
* Non-standard JSON CRL shape is removed; only DER is served.
* Short-lived certificate exemption (profile TTL < 1h → skip
CRL/OCSP) is preserved; the response simply omits the serial.
* Routes are registered on the unauthenticated 'finalHandler' mux
in cmd/server/main.go alongside EST ('/.well-known/est/*') and
SCEP ('/scep'). Legacy authenticated paths return 404.
* Regression coverage:
- internal/api/handler/certificate_handler_test.go — content
type, DER parseability, 404 for unknown issuer.
- internal/api/handler/adversarial_path_test.go — unauthenticated
access asserted for CRL, OCSP, EST, SCEP.
- internal/api/router/router_test.go — route-table assertion
that '.well-known/pki/*', '.well-known/est/*', and '/scep' are
mounted on the unauthenticated branch.
M-001 — Auto-closed by M-002
EST and SCEP were already registered on the unauthenticated
'finalHandler' mux; the router comment at
internal/api/router/router.go:247 now matches reality. The
adversarial-path tests above lock the behavior in.
Verification (all gates green):
* go vet ./... — clean
* go build ./... — ok
* go test -short ./... (55+ packages) — all pass
* web/ : npm test (225 Vitest tests) — all pass
* web/ : npx tsc --noEmit — clean
* grep sweep for '/api/v1/(crl|ocsp)' — 13 surviving hits,
all intentional M-006 tombstone/relocation comments.
Documentation:
* coverage-gap-audit.md — status flips M-001/M-002/M-003/M-006 →
Fixed, with per-finding resolution paragraphs citing regression
test IDs. (Audit file lives outside this repo; see cowork root.)
* CLAUDE.md Project Status line updated with the auth-unification
closure note.
* docs/features.md, docs/architecture.md, docs/quickstart.md,
docs/concepts.md, docs/connectors.md, docs/test-env.md,
docs/testing-guide.md, docs/compliance-*.md, docs/demo-advanced.md
— refreshed for the new '.well-known/pki/*' namespace and named
API keys.
* api/openapi.yaml — documents the new unauthenticated endpoints
and removes the legacy '/api/v1/crl*' + '/api/v1/ocsp/*' paths.
.gitignore: adds '/.gocache/' and '/.gomodcache/' for the session-
scoped Go caches so they never enter the tree.
Implements Simple Certificate Enrollment Protocol with single-endpoint
operation-based dispatch (GetCACaps, GetCACert, PKIOperation), PKCS#7
SignedData CSR extraction with fallback for raw/base64 CSR, challenge
password authentication via CSR attributes, and shared internal/pkcs7
package extracted from EST handler to eliminate code duplication.
24 new tests (11 service + 13 handler) plus 5 shared pkcs7 package tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Mirror M34's dynamic issuer config pattern for deployment targets: AES-256-GCM
encrypted config storage, sensitive field redaction in API responses, agent
heartbeat-based test connection endpoint, and full frontend updates including
test status indicators, source badges, and removal of stale hostname/status
fields from the Target interface.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add certificate export in PEM (JSON or file download) and PKCS#12 formats.
Private keys are never included — they stay on agents. Add EKU-aware
issuance threading profile EKUs (serverAuth, clientAuth, codeSigning,
emailProtection, timeStamping) through the full issuance pipeline. Fix
agent CSR SAN splitting for email addresses, adaptive KeyUsage flags for
S/MIME vs TLS, and a pre-existing generateID collision bug in deployment
job creation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace the 18-parameter RegisterHandlers function signature with a cleaner
HandlerRegistry struct that groups all API handler dependencies. This eliminates
the signature explosion that made the function difficult to read and maintain.
Changes:
- Added HandlerRegistry struct with 18 fields grouping all handler types
- Updated RegisterHandlers to accept a single HandlerRegistry parameter
- Updated all internal handler references to use reg.FieldName syntax
- Updated call sites in cmd/server/main.go and integration tests
- No functional changes, purely structural refactoring
Resolves TICKET-006: RegisterHandlers Signature Explosion
M25: After deploying a certificate, the agent probes the live TLS
endpoint and compares SHA-256 fingerprints to verify the correct cert
is being served. Best-effort — failures don't block deployments.
New endpoints: POST /jobs/{id}/verify, GET /jobs/{id}/verification.
Migration 000008 adds verification columns to jobs table.
M26: Traefik target connector (file provider, auto-reload) and Caddy
target connector (dual-mode: admin API hot-reload or file-based).
Both wired into agent dispatch.
Also: restructured README to highlight supported integrations (issuers,
targets, notifiers) earlier, moved API/CLI/MCP sections lower. Updated
all docs (features, connectors, architecture, testing guide, why-certctl)
and fixed integration tests for 18-param RegisterHandlers signature.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implement Enrollment over Secure Transport protocol with 4 endpoints under
/.well-known/est/ — cacerts (CA chain distribution), simpleenroll (initial
enrollment), simplereenroll (certificate renewal), and csrattrs (CSR
attributes). PKCS#7 certs-only wire format with hand-rolled ASN.1, accepts
both PEM and base64-encoded DER CSRs, configurable issuer and profile
binding, full audit trail. 28 new tests (18 handler + 10 service).
Also includes:
- GetCACertPEM added to issuer connector interface (all 4 issuers updated)
- EST integration tests wired into e2e test suite (13 test cases)
- QA testing guide Part 26 (15 manual EST test cases)
- All docs updated: README, features, architecture, concepts, connectors,
quickstart, demo-advanced (endpoint counts, MCP wording, agent IDs,
issuer interface, resource lists, OpenSSL status)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
M21 adds server-side active TLS scanning of CIDR ranges with concurrent
probing, sentinel agent pattern for pipeline reuse, and full CRUD API for
scan targets. M22 adds Prometheus exposition format endpoint alongside
existing JSON metrics. Comprehensive documentation audit updates all docs
to reflect 91 endpoints, 19 tables, 6 scheduler loops, and 900+ tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Backend:
- Embedded OCSP responder: GET /api/v1/ocsp/{issuer_id}/{serial} returns
signed OCSP responses (good/revoked/unknown) using CA key
- DER-encoded X.509 CRL: GET /api/v1/crl/{issuer_id} returns proper DER CRL
signed by issuing CA with 24h validity window
- Short-lived cert exemption: certs with profile TTL < 1 hour skip CRL/OCSP
(expiry is sufficient revocation for ephemeral workloads)
- Extended issuer connector interface with GenerateCRL and SignOCSPResponse
- Local CA implements full CRL/OCSP signing; ACME and step-ca return
appropriate "use native endpoint" errors
- IssuerConnectorAdapter bridges new methods between layers
Frontend:
- Revoke button on certificate detail page with RFC 5280 reason modal
- Revocation banner with reason display and timestamp
- Revocation status indicators in lifecycle section
- "Revoked" filter option in certificates list
- API client: revokeCertificate() function and Certificate type extensions
Tests: ~31 new tests across connector, service, handler, and adapter layers
Docs: milestones renumbered (M13-M14, M16-M18), M15b marked complete
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implements core revocation infrastructure: POST /api/v1/certificates/{id}/revoke
with all 8 RFC 5280 reason codes, JSON-formatted CRL at GET /api/v1/crl, webhook
and email revocation notifications, best-effort issuer notification, and immutable
revocation audit trail. Includes 48 new tests across service, handler, integration,
and domain layers (600+ total). Fixes 3 pre-existing test bugs (team_test error
matching, agent_group delete status code, team handler per_page validation).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add SHA-256 API key authentication with constant-time comparison, configurable
token bucket rate limiter, CORS origin allowlist middleware, and React auth
context with login page. Auth info endpoint bootstraps GUI without credentials.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Wire issuer connector end-to-end with IssuerConnectorAdapter (dependency inversion)
- Renewal/issuance job processor: RSA key + CSR generation, Local CA signing, cert version storage
- Agent work API (GET /agents/{id}/work) and job status API (POST /agents/{id}/jobs/{job_id}/status)
- Agent-side deployment: WorkItem enrichment with target type/config, NGINX/F5/IIS connector invocation
- Full ACME v2 implementation: HTTP-01 challenge solving, account registration, order lifecycle
- Update all docs (README, architecture, connectors, demo-advanced, quickstart) for M1-M2
- Fix go vet warning in deployment.go (non-constant format string)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
shankar0123