7 Commits

Author	SHA1	Message	Date
shankar0123	ceca3647eb	vault: add automatic token renewal at TTL/2 + Prometheus metric ... Closes Top-10 fix #5 of the 2026-05-03 issuer-coverage audit (see cowork/issuer-coverage-audit-2026-05-03/RESULTS.md). Pre-fix, the VaultPKI adapter authenticated with a static token and never called renew-self. Long-lived deploys hit token expiry; the first operator-visible signal was failed cert renewals on production targets. This commit: 1. Connector.Start(ctx) spawns a goroutine that calls POST /v1/auth/token/renew-self at TTL/2 cadence (computed from a one-shot lookup-self at startup). Honours ctx.Done() for graceful shutdown via a per-loop done channel + Stop(). 2. On `renewable: false` response (initial lookup OR any subsequent renewal), the loop emits a WARN, increments the not_renewable counter, and exits. The operator must rotate the token before Vault's Max TTL elapses. 3. New Prometheus counter certctl_vault_token_renewals_total with labels result={success,failure,not_renewable}. Registered alongside existing certctl_issuance_* counters in internal/api/handler/metrics.go. 4. ERROR-level logging on renewal failure with operator-actionable substring ("vault token renewal failed; rotate the token before TTL expires") so journalctl + grep find it. Loop keeps ticking after a failure — transient blips don't kill it. New optional issuer.Lifecycle interface: type Lifecycle interface { Start(ctx context.Context) error Stop() } Connectors that hold no background goroutines (almost all of them) do not implement this — IssuerRegistry.StartLifecycles / StopLifecycles feature-detect via type assertion. New lifecycle-bearing connectors plug in by implementing the interface; no further registry plumbing required. Wiring (cmd/server/main.go): - service.NewVaultRenewalMetrics() instance is shared between issuerRegistry.SetVaultRenewalMetrics (so Vault connectors built by Rebuild get a recorder) and metricsHandler.SetVaultRenewals (so the Prometheus exposer emits the new series). - issuerRegistry.StartLifecycles(ctx) is called after issuerService.BuildRegistry; defer issuerRegistry.StopLifecycles is paired so goroutines exit cleanly on signal. - IssuerConnectorAdapter.Underlying() exposes the wrapped issuer.Connector so registry-level machinery can reach the concrete connector behind the adapter without duplicating the wiring at every call site. Tests (internal/connector/issuer/vault/vault_renew_test.go): - TestVault_RenewLoop_TickAtHalfTTL — three ticks → three renewals, all "success". - TestVault_RenewLoop_StopsOnNotRenewable — second renewal returns renewable=false, loop exits, third tick fires no HTTP call. - TestVault_RenewLoop_FailureSurfacesViaMetric — first renewal 403 bumps "failure", second renewal succeeds → loop kept ticking. - TestVault_RenewLoop_CtxCancellation_StopsCleanly — Stop returns within 200ms after ctx cancel. - TestVault_RenewLoop_StartsNothingWhenNotRenewable — token already non-renewable at boot ⇒ no goroutine, "not_renewable" metric increments at startup so operators see it in Grafana. - TestVault_ComputeInterval — 4 cases pinning TTL/2 + minRenewInterval floor. - TestVault_RenewSelf_ParseFailure_NamesActionableInError — surfaced error contains "vault token renewal failed" + "rotate the token". Cadence is dynamic — every successful renewal re-derives TTL/2 from the renewed lease's lease_duration, so a short bootstrap token that gets renewed up to a longer Max TTL shifts to the longer cadence automatically (defends against degenerate fast ticking on a token whose Max TTL is far longer than its initial TTL). Documentation: - docs/connectors.md Vault PKI section gains "Token TTL + automatic renewal" subsection (operator-facing: cadence, metric, renewable=false rotation playbook). Out of scope (intentional, flagged in the audit follow-up): - AppRole / Kubernetes / AWS IAM auth methods (different renewal semantics). - Hot-reload of rotated token from disk (operator restarts today; future: GUI/MCP issuer-update path triggers Rebuild which Stops the old connector and Starts the new one). - Auto-re-auth after token death (operator playbook owns it). CHANGELOG.md is intentionally not hand-edited (per CHANGELOG.md itself: "no longer maintains a hand-edited per-version changelog; per-release notes are auto-generated from commit messages between consecutive tags"). Verified locally: - gofmt clean. - go vet ./internal/service/... ./internal/api/handler/... ./internal/connector/issuer/vault/... ./cmd/server/... clean. - go test -short -count=1 ./internal/connector/issuer/vault/... ./internal/service/... ./internal/api/handler/... green. - go test -race -count=10 -run 'TestVault_RenewLoop|TestVault_ComputeInterval' ./internal/connector/issuer/vault/... green. Audit reference: cowork/issuer-coverage-audit-2026-05-03/RESULTS.md Top-10 fix #5.	2026-05-03 21:24:27 +00:00
shankar0123	6460e43888	acme: support serial-only revocation via local cert-version lookup ... Closes the #7 acquisition-readiness blocker from the 2026-05-01 issuer coverage audit. Pre-fix, ACME RevokeCertificate at acme.go:L519-L529 returned the literal error "ACME revocation by serial not supported in V1; provide certificate DER". RFC 8555 §7.6 genuinely requires the cert DER bytes (not just the serial), but a CLM platform's job is to abstract over that limitation. Operators routinely have only the serial in hand: lost PEM, rotated key, GUI revoke action driven by a row in the certs list. This commit: - Adds CertificateLookupRepo interface at the ACME connector boundary (connector boundary, NOT a service/repository import — the connector accepts whatever satisfies the shape). Production wiring in cmd/server/main.go injects the postgres CertificateRepository; tests inject a fake. - Adds CertificateRepository.GetVersionBySerial(ctx, issuerID, serial) + interface declaration in repository/interfaces.go, returning the certificate_versions row whose SerialNumber matches, scoped to the issuer via JOIN on managed_certificates. Mirrors the existing GetByIssuerAndSerial shape but returns the version (where PEMChain lives). Per RFC 5280 §5.2.3 the issuer scope is required for determinism. - Adds SetCertificateLookup + SetIssuerID setters on *acme.Connector. Mirror the pattern local.Connector already uses for OCSP responder wiring. Both must be wired before serial-only revoke works; unwired state falls back to a more actionable error pointing at the wiring requirement (the historical "not supported" wording is retired). - Rewrites RevokeCertificate end-to-end: lookup → empty-PEM check → pem.Decode → block.Type == "CERTIFICATE" check → ensureClient → golang.org/x/crypto/acme.Client.RevokeCert(ctx, accountKey, der, reasonCode). RFC 8555 §7.6 case 1 (revocation request signed with account key) — the same account key issued the cert, so authority is intrinsic. The not-found path returns an actionable operator- facing error pointing at the local-store requirement. - Adds mapRevocationReason translating RFC 5280 §5.3.1 reason strings (unspecified, keyCompromise, cACompromise, affiliationChanged, superseded, cessationOfOperation, certificateHold, removeFromCRL, privilegeWithdrawn, aACompromise) into golang.org/x/crypto/acme. CRLReasonCode. Accepts canonical camelCase + underscore_lower + ALL_CAPS_UNDERSCORE. Nil reason → 0 (unspecified). Unknown reason errors rather than silently demoting (operators rely on the reason for compliance reporting). - Wiring update in service/issuer_registry.go: SetACMECertLookup setter on the registry; Rebuild type-asserts *acme.Connector and calls SetCertificateLookup + SetIssuerID, mirroring the existing *local.Connector branch. cmd/server/main.go calls issuerRegistry.SetACMECertLookup(certificateRepo) immediately after SetIssuanceMetrics — the postgres repo satisfies the interface via GetVersionBySerial. - Tests: * acme_revoke_test.go (new): TestRevokeCertificate_NoCertLookupWired, TestRevokeCertificate_NoIssuerIDWired, TestRevokeCertificate_LookupReturnsNotFound (operator-facing "may not have been issued through certctl" hint pinned), TestRevokeCertificate_LookupArbitraryError, TestRevokeCertificate_VersionPEMEmpty (corrupt-row guard), TestRevokeCertificate_PEMMalformed_NoBlock, TestRevokeCertificate_PEMMalformed_WrongType (PRIVATE KEY block rejected as not a CERTIFICATE). * TestMapRevocationReason_TableDriven: full RFC 5280 reason set plus camelCase / underscore / ALL-CAPS variants plus nil-reason and unknown-reason cases. * acme_failure_test.go: renamed TestRevokeCertificate_AlwaysError → TestRevokeCertificate_UnwiredCertLookupFallback; the test still exercises the same backward-compat branch but now asserts the new "CertificateLookup wiring" error wording. - Mock-repo updates (3 sites): mockCertificateRepository in internal/integration/lifecycle_test.go, mockCertRepo in internal/service/testutil_test.go, mockCertRepoWithGetError in internal/service/shortlived_test.go each gain a GetVersionBySerial implementation that mirrors the GetByIssuerAndSerial logic but returns the version row. - docs/connectors.md ACME section: new "Revocation by serial number" subsection covering the workflow, the local-store requirement (cert was issued through certctl, not imported), the reason-code mapping with the three accepted spelling variants, and a pointer to the audit reference. Out of scope (intentional, per spec): - Recovering the DER from outside the local cert store (CT logs, CSR + signature reconstruction). If the cert wasn't issued through certctl, revoke-by-serial via certctl isn't possible. - Revocation via the cert's private key (RFC 8555 §7.6 case 2). The account-key path covers all certctl-issued certs because the same account key issued them. - Pebble-backed integration test for the happy path. Pebble integration is the right home for that — the unit tests in this commit pin all failure-mode branches before the network call, and the wiring branch in Rebuild is exercised by the existing TestIssuerRegistryRebuild paths. Verified locally: - gofmt -l . clean - go vet ./... clean - staticcheck ./... clean - go test -short -count=1 across connector, service, repository, integration, api/middleware, api/handler: green Audit reference: cowork/issuer-coverage-audit-2026-05-01/RESULTS.md Top-10 fix #7.	2026-05-02 13:09:30 +00:00
shankar0123	95c2bf9818	metrics: add per-issuer-type issuance counters, histogram, and failure classifier ... Closes the #4 acquisition-readiness blocker from the 2026-05-01 issuer coverage audit. Before this commit, certctl's Prometheus exposition had zero per-issuer-type signal — operators answering "is DigiCert slow?" or "is Sectigo failing more than ACME?" had to grep logs by issuer name. This commit adds three series labelled by issuer type: certctl_issuance_total{issuer_type, outcome} certctl_issuance_duration_seconds{issuer_type} (histogram) certctl_issuance_failures_total{issuer_type, error_class} The histogram covers 0.05–120 second buckets to span the local-issuer fast path and async-CA slow path (DigiCert/Sectigo/Entrust polling can take minutes). error_class is a closed enum of eight values (timeout, auth, rate_limited, validation, upstream_5xx, upstream_4xx, network, other) classified once in service.ClassifyError. Cardinality budget is ~276 new series, well within Prometheus's comfortable range. Implementation: - service.IssuanceMetrics is the thread-safe counter + histogram table. Three independent views (counters / failures / durations) exposed via SnapshotCounters / SnapshotFailures / SnapshotDurations. sync.RWMutex protects the map shape; per-key sync/atomic.Uint64 primitives keep the recording hot path lock-free under concurrent service-layer goroutines. - service.IssuanceCounterEntry / IssuanceFailureEntry / IssuanceDurationEntry / IssuanceMetricsSnapshotter live in service (not handler) to avoid an import cycle: handler already imports service for admin_est.go etc., so service can't import handler back. Handler's exposer takes the snapshotter via the service-defined interface. - service.ClassifyError pure function maps error → error_class. context.DeadlineExceeded / context.Canceled → timeout; *net.OpError → network; substring matches against canonical AWS / DigiCert / Sectigo error shapes for auth / rate_limited / validation / upstream_5xx / upstream_4xx / network; unknown → other. Each branch has at least one representative test case in TestClassifyError. - IssuerConnectorAdapter.SetMetrics wires per-adapter recording (issuerType + metrics). Existing 28+ test call sites of NewIssuerConnectorAdapter keep their one-arg signature; production wiring goes through SetMetrics post-construction. - IssuerRegistry.SetIssuanceMetrics + Rebuild type-asserts to *IssuerConnectorAdapter and calls SetMetrics with the issuer type string. nil-guarded — tests that hand-build adapters without metrics get no-op recording. - IssuerConnectorAdapter.IssueCertificate / RenewCertificate wrap the underlying connector call with start := time.Now() and recordIssuance(start, err). Renewal is recorded into the same certctl_issuance_* series as initial issuance — operationally, renewal IS issuance from the connector's perspective (matches the audit prompt's guidance on series naming). - handler/metrics.go GetPrometheusMetrics gains a new exposer block emitting all three series in stable label order with correct Prometheus format (_bucket / _sum / _count for the histogram, +Inf bucket appended). Sorted via sort.Slice for stable output. nil- guarded so deploys without the wire produce clean exposition. - formatLE helper trims trailing zeros from histogram bucket labels via strconv.FormatFloat(le, 'f', -1, 64) so the `le` labels match Prometheus client conventions ("0.05", "30", "120", not "0.0500" etc.). - cmd/server/main.go wires a single IssuanceMetrics instance into both the IssuerRegistry (recording) and the MetricsHandler (exposer) using DefaultIssuanceBucketBoundaries. Tests: - TestIssuanceMetrics_RecordAndSnapshot — happy-path counter + histogram + failure recording, BucketBoundaries returns a copy (not shared storage). - TestIssuanceMetrics_HistogramCumulative — pins the cumulative-buckets contract. 100ms observation lands in 0.1 bucket and every larger bucket; 750ms only in the 1.0 bucket. Off-by-one here would corrupt every quantile query downstream. - TestIssuanceMetrics_Concurrency — 100 goroutines × 1000 ops under the race detector. Asserts atomic counter integrity across contended writes. - TestClassifyError — 17 cases covering every branch of the closed enum plus the nil-error special case. Implementation chooses the existing hand-rolled fmt.Fprintf exposition pattern (no prometheus/client_golang dependency added) to stay consistent with the OCSP / deploy counter blocks already in the file. Out of scope (separate follow-ups): - Revocation metrics (certctl_revocation_*) — symmetric to issuance but the audit didn't ask; explicit follow-up commit. - Discovery / health-check duration histograms. - prometheus/client_golang migration. Verified locally: - gofmt clean - go vet ./... clean - staticcheck ./... clean - golangci-lint run --timeout 5m ./... → 0 issues - go test -short -count=1 ./internal/service/ green - go test -short -count=1 -race -run TestIssuanceMetrics ./internal/service/ green - go test -short -count=1 ./internal/api/handler/ green - go build ./... success Audit reference: cowork/issuer-coverage-audit-2026-05-01/RESULTS.md Top-10 fix #4 (Part 3, narrative section).	2026-05-02 00:39:25 +00:00
shankar0123	62d03d9134	awsacmpca: thread ctx through factory + registry — fix CI contextcheck ... Follow-up to 6119f26 (awsacmpca: replace stub client with AWS SDK v2 implementation). CI's golangci-lint contextcheck rule flagged six violations in awsacmpca_test.go where mustNew/awsacmpca.New were called from test functions that had ctx in scope but didn't thread it through New(). The previous commit used context.Background() inside New() with the rationale that "the audit allows either threading or documenting the limitation"; CI made that choice for us. Threading ctx is the right shape per the audit's stated preference. The fix cascades from awsacmpca.New through issuerfactory.NewFromConfig and IssuerRegistry.Rebuild because the contextcheck rule propagates upward through every caller that has ctx in scope. This commit: - Changes awsacmpca.New(config, logger) to awsacmpca.New(ctx, config, logger). The ctx is passed to buildSDKClient → awsconfig.LoadDefaultConfig so SDK credential chain resolution honors caller deadlines (LoadDefaultConfig may probe IMDS or remote credential sources). The doc-comment on New explains that callers without a useful deadline should pass context.Background() and that the SDK has internal credential-resolution timeouts. - Adds ctx as the first parameter of issuerfactory.NewFromConfig. Currently only the AWSACMPCA branch uses ctx (it's threaded into awsacmpca.New); the other 11 branches accept ctx without using it. This is a contractual change that lets callers thread ctx through without contextcheck warnings, even though most issuer constructors do no ctx-aware work today. - Adds ctx as the first parameter of IssuerRegistry.Rebuild. Rebuild iterates over configs and calls NewFromConfig per issuer; the same ctx flows through every connector instantiation. - Updates the two production call sites in internal/service: - issuer.go:279 (TestIssuer connection test) now passes its method-scoped ctx - issuer.go:303 (BuildRegistry) now passes its method-scoped ctx to Rebuild - Updates 13 test sites in internal/connector/issuerfactory/factory_test.go via a new testCtx() helper that returns context.Background(). Helper is dedicated to this file so contextcheck's "you have a ctx in scope, pass it" rule doesn't fire on test functions that don't otherwise need ctx. - Updates 6 test sites in internal/service/issuer_registry_test.go to pass context.Background() to Rebuild. - Removes the now-stale "// NewFromConfig has no ctx parameter (preserved across all 12 connectors); pass context.Background() ..." comment from the awsacmpca branch in factory.go — that workaround is no longer the design. Verified locally: - gofmt -l . clean - go vet ./... clean - staticcheck ./... clean - golangci-lint run --timeout 5m ./... clean (was failing with 6 contextcheck issues before the cascade; now 0 issues) - go test -short -count=1 across all changed packages green Sandbox couldn't run the existing CI's full make verify due to disk pressure on /sessions and a virtiofs concurrent-open-file ceiling on go mod tidy; operator should run `make verify` on the workstation to confirm. Audit reference: cowork/issuer-coverage-audit-2026-05-01/RESULTS.md Top-10 fix #1 (CI follow-up; behavior unchanged from 6119f26).	2026-05-01 23:27:25 +00:00
Shankar	46e17c56fb	main: wire CRL/OCSP responder services into runtime ... Activates the CRL/OCSP responder pipeline that landed dormant in phases 1-4 (commits dc44826, 6d1da84, ff20fba, c76bfcf): * IssuerRegistry gains SetLocalIssuerDeps + LocalIssuerDeps struct. Rebuild type-asserts each constructed connector to *local.Connector and injects ocspResponderRepo + signerDriver + IssuerID + key dir + (optional) rotation-grace + validity overrides. Non-local connectors are unaffected (the type-assert fails silently). Adapter pattern preserved: callers still see service.IssuerConnector. * cmd/server/main.go: - constructs CRLCacheRepository + OCSPResponderRepository from db - constructs signer.FileDriver (default; PKCS#11 driver plugs in later via the same Driver interface, no main.go changes needed) - calls issuerRegistry.SetLocalIssuerDeps(...) BEFORE BuildRegistry so the deps are in place when local connectors are constructed - wires CRLCacheService into CertificateService via SetCRLCacheSvc (Phase 4 cache-aware GenerateDERCRL path now active) - calls scheduler.SetCRLCacheService + SetCRLGenerationInterval after sched is constructed; logs the interval at startup * config: new OCSPResponderConfig struct + Scheduler.CRLGenerationInterval field. Three new env vars: CERTCTL_OCSP_RESPONDER_KEY_DIR (no default; operator MUST set in prod) CERTCTL_OCSP_RESPONDER_ROTATION_GRACE (default 7d) CERTCTL_OCSP_RESPONDER_VALIDITY (default 30d) CERTCTL_CRL_GENERATION_INTERVAL (default 1h) Backward compat: when env vars are unset, the responder bootstrap path still activates (with default rotation grace + validity, key dir = cwd which is fine for tests), and the CRL cache pre-populates on the 1h interval. Operators not running the local issuer see no behavior change. go vet clean across the full module. Targeted tests for config + service + scheduler packages all green. Full module build deferred to CI (sandbox /sessions disk pressure prevented unzipping a transitive dep — same disk-full pattern the prior commits hit; not a code issue).	2026-04-29 01:48:23 +00:00
Shankar Reddy	76d383bd64	fix(crypto): per-ciphertext PBKDF2 salt + v2 versioned format with v1 fallback (M-8)	2026-04-17 05:36:29 +00:00
Shankar	6c3bc88d3d	feat(M34): dynamic issuer configuration with encrypted config storage ... Replace static env-var-based issuer wiring with GUI-driven dynamic configuration stored encrypted in PostgreSQL. Operators can now configure, test, enable/disable, and manage issuers from the dashboard without restarting the server. Key changes: - AES-256-GCM encryption for sensitive issuer config at rest (PBKDF2 key derivation with 100k iterations) - Dynamic IssuerRegistry with sync.RWMutex replacing static map - Connector factory pattern (issuerfactory.NewFromConfig) replacing 140 lines of static wiring in main.go - Migration 000009: encrypted_config, last_tested_at, test_status, source columns on issuers table - Env var seeding on first boot with ON CONFLICT DO NOTHING - Registry Rebuild() for atomic map swap after CRUD operations - Issuer type validation against domain constants on Create - Audit trail for test connection results - Conditional seeding for step-ca/OpenSSL (only when env vars set) - GUI: source badge, connection test status on issuer detail page Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-04-04 00:20:13 -04:00