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shankar0123
d6f4d5c5e8
Phase 4 of the certctl architecture diligence remediation closure.
Seven findings, all in deploy/helm/certctl/.
DEPL-H2 (High) — ship deploy/helm/certctl/templates/backup-cronjob.yaml
Operator opt-in via backup.enabled=true. Default OFF. CronJob runs
pg_dump --format=custom --no-owner --no-acl --dbname=certctl
matching the canonical shape in
docs/operator/runbooks/postgres-backup.md (so manual and
automated dumps are byte-identical). Sink: PVC (default) OR S3
via aws-cli. Documented as in-cluster-Postgres only — managed DB
deployments rely on their provider's PITR.
DEPL-M1 (Med) — Helm pre-install/pre-upgrade migration hook
deploy/helm/certctl/templates/migration-job.yaml — runs
`certctl-server --migrate-only` before the server Deployment
rolls. The --migrate-only flag (new in cmd/server/main.go) is a
hermetic schema-mutation pass: load config, open DB pool, run
RunMigrations + RunSeed, exit 0. No HTTP listener, no scheduler,
no signing setup.
Server's boot-time RunMigrations call is now gated on
CERTCTL_MIGRATIONS_VIA_HOOK — when set true, the server skips
the boot path (the hook owns the work). Default still runs at
boot, so Compose / VM / bare-metal deploys are unchanged.
migrations.viaHook: false in values.yaml (off by default).
DEPL-M4 (Med) — explicit Postgres StatefulSet strategy fields
deploy/helm/certctl/templates/postgres-statefulset.yaml adds:
spec.updateStrategy.type: OnDelete
spec.podManagementPolicy: OrderedReady
Operator-controlled Postgres upgrades (the OnDelete strategy
means a chart template tweak no longer triggers an immediate
Postgres restart). OrderedReady aligns with the standard
Postgres-on-Kubernetes pattern for any future HA work.
DEPL-M5 (Med) — per-fleet-size resource ladder documentation
deploy/helm/certctl/values.yaml — extended comments next to
server.resources + agent.resources documenting:
"≤ 500 certs / 100 agents" → defaults are validated
"5K certs / 1K agents" → starter suggestions, TBD Phase 8
"50K certs / 10K agents" → starter suggestions, TBD Phase 8
Numbers for the small-fleet case derive from the measured
baselines in docs/operator/performance-baselines.md
(50ms p50, < 3s for 1000-cert inventory walk, etc.). Larger
fleet numbers explicitly marked TBD pending Phase 8 load-test
runs — operators tune empirically until then.
DEPL-L1 (Low) — Helm rollback runbook
docs/operator/runbooks/rollback.md — covers helm rollback
mechanics, the schema-migration manual-cleanup path (when
*.down.sql files apply vs. when full restore is the only safe
path), and the per-migration-class safe-to-rollback table.
DEPL-L2 (Low) — Prometheus AlertManager rules
deploy/helm/certctl/templates/prometheusrules.yaml — opt-in via
monitoring.prometheusRules.enabled=true. Default OFF. Four
starter rules using verified metric names from
internal/api/handler/metrics.go:
CertctlCertificateExpiringSoon (certctl_certificate_expiring_soon)
CertctlAgentOffline ((agent_total - agent_online) > 0 for 1h)
CertctlJobFailureRateHigh (failure rate over 5% for 15m)
CertctlIssuanceFailures (any failures over 15m window)
All thresholds operator-tunable via
monitoring.prometheusRules.thresholds.* in values.
DEPL-L3 (Low) — Prometheus bearer-token setup runbook
docs/operator/runbooks/prometheus-bearer-token.md — documents
the API-key + Secret + values wiring for the RBAC-gated
/api/v1/metrics/prometheus scrape endpoint. End-to-end
procedure with troubleshooting steps + rotation guide.
CI guard: scripts/ci-guards/helm-templates-lint.sh
Six-combo matrix: defaults / backup PVC / backup S3 /
prometheusRules / migrations.viaHook / all-on. Each runs helm
template + checks render success. helm lint also gated.
Wired into the auto-pickup loop in .github/workflows/ci.yml;
azure/setup-helm@b9e51907 (v4.3.0, SHA-pinned per Phase 1
RED-2) installs helm v3.16.0 on the runner.
Verification (all pass):
ls deploy/helm/certctl/templates/{backup-cronjob,migration-job,prometheusrules}.yaml
grep -E 'updateStrategy|podManagementPolicy' deploy/helm/certctl/templates/postgres-statefulset.yaml # 2 matches
helm template deploy/helm/certctl/ --set backup.enabled=true \
--set monitoring.prometheusRules.enabled=true --set migrations.viaHook=true \
| grep -E "kind: (CronJob|PrometheusRule|Job)" # 3 matches
helm lint deploy/helm/certctl/ # 0 failed
ls docs/operator/runbooks/{rollback,prometheus-bearer-token}.md
bash scripts/ci-guards/helm-templates-lint.sh # 6/6 matrix combinations pass
Go build clean (cmd/server compiles, migrate-only path verified by
the build target). YAML validated.
Closes: cowork/certctl-architecture-diligence-audit.html#fix-DEPL-H2
cowork/certctl-architecture-diligence-audit.html#fix-DEPL-M1
cowork/certctl-architecture-diligence-audit.html#fix-DEPL-M4
cowork/certctl-architecture-diligence-audit.html#fix-DEPL-M5
cowork/certctl-architecture-diligence-audit.html#fix-DEPL-L1
cowork/certctl-architecture-diligence-audit.html#fix-DEPL-L2
cowork/certctl-architecture-diligence-audit.html#fix-DEPL-L3