Files
certctl/docs
shankar0123 a975ccfca0 docs(b6): secret-custody reference + config-encryption upgrade runbook + private-key CI guard
Closes acquisition-diligence Bundle 6 findings on secret custody, config
encryption, and local artifact hygiene. Source IDs: S6, R4, SEC-M2,
RT-M1, RT-M2, RT-L1.

Surgical closures (artifact-only audit-framed memos stay out of the
public repo per the Bundle 5 lesson):

R4 / RT-L1 — local EC private key artifact
  rm cmd/agent/mc-001.key (gitignored, never in git history, leftover
  from a 2025-era agent dev run on the operator's workstation).
  Added scripts/ci-guards/B6-no-private-keys-in-tree.sh that fails the
  build if any TRACKED non-test file contains a PEM private-key block,
  so the next attempt to commit similar material gets caught at CI.
  Allowlist: *_test.go (hermetic-test PEMs), examples/*.md (sample
  walkthroughs), internal/scep/intune/testdata/ (certificates, not
  keys).

RT-M1 — landing-page HSM implication
  certctl.io/index.html: 'their hardware' / 'your hardware' colloquial
  comparisons rephrased to 'their custody' / 'your servers'. The phrase
  'Your keys. Your hardware. Your data. Your terms.' becomes 'Your
  keys. Your servers. Your data. Your terms.' to remove any inferred
  HSM-backed key-storage claim. The technical disclosure now lives in
  docs/operator/secret-custody.md (linked below); the landing page no
  longer makes a claim it cannot back.

S6 + SEC-M2 + RT-M2 (composite documentation closure)
  Added docs/operator/secret-custody.md — public operator reference
  enumerating every secret material on the control plane and on
  agents:
    - Local CA private key (FileDriver, file-on-disk, heap-resident
      with the L-014 carve-out documented in
      internal/connector/issuer/local/local.go).
    - Agent ECDSA P-256 keys (file on agent host, never transmitted).
    - OIDC client secret (AES-256-GCM v3, PBKDF2 600k).
    - Session signing key (same encryption regime).
    - Break-glass credential (Argon2id, never encrypted).
    - API-key bearer tokens (SHA-256 hash only; plaintext shown once).
    - CSR private keys mid-issuance (agent memory only).
    - Issuer-connector backend secrets (encrypted_config column,
      fail-closed for source='database', plaintext-by-design for
      source='env' with rationale).
  The Env-seeded-vs-DB-seeded plaintext policy is explained in plain
  text so a buyer review can independently verify the startup guard at
  cmd/server/main.go:222-262 makes sense.

  Added docs/operator/runbooks/config-encryption-upgrade.md — the
  procedural arm: how to force v1/v2 -> v3 re-seal across the
  database, plus the passphrase-rotation order. Documents the
  AEAD-driven read fallback (v3 -> v2 -> v1) and the fact that
  re-sealing happens passively on UPDATE. Open roadmap item: a
  certctl admin reseal --all command (tracked in
  WORKSPACE-ROADMAP.md).

  Both docs wired into docs/README.md Operator + Runbooks tables.

Verification:
  rg -n 'CONFIG_ENCRYPTION|encrypt|v1|private key|HSM|PKCS11|mc-001.key|\.key|Local CA' \
     internal cmd docs .gitignore README.md   # ambient (no NEW leaks)
  find . -name '*.key' \
     -not -path './.git/*' -not -path './web/node_modules/*'   # empty
  git ls-files | xargs grep -lE 'BEGIN .* PRIVATE KEY' \
     | grep -vE '_test\.go$|^examples/|^internal/scep/intune/testdata/'   # empty
  bash scripts/ci-guards/B6-no-private-keys-in-tree.sh   # PASS
  bash scripts/ci-guards/G-3-env-docs-drift.sh           # PASS
  bash scripts/ci-guards/doc-rot-detector.sh             # PASS

Residual roadmap (deliberately deferred):
  - signer.PKCS11Driver (HSM-token-backed CA-key custody).
  - signer.CloudKMSDriver (AWS/GCP/Azure KMS-backed CA-key custody).
  - FIPS 140-3 mode for the whole control plane.
  - HSM-backed session signing key.
  - Built-in 'certctl admin reseal --all' command.
  All five tracked in WORKSPACE-ROADMAP.md, not retracted.
2026-05-13 01:48:40 +00:00
..

certctl Documentation

Last reviewed: 2026-05-12

The full docs index, organized by audience. Pick the section that matches what you need to do; each link below opens a focused doc rather than a wall of text.

For the elevator pitch and quickstart commands, see the repo README.md at the root. For the marketing site, see certctl.io.


Getting Started

You're new to certctl, just cloned the repo, or want to understand what it does before installing.

Doc What it covers
Concepts TLS certificates explained for beginners — CAs, ACME, EST, private keys, the full glossary
Quickstart Five-minute setup with Docker Compose, dashboard tour, API tour
Examples Five turnkey scenarios — ACME+NGINX, wildcard DNS-01, private CA+Traefik, step-ca+HAProxy, multi-issuer
Advanced demo End-to-end certificate lifecycle with technical depth at each step
Why certctl Positioning vs ACME clients, agent-based SaaS, enterprise platforms; when to look elsewhere

Reference

You're operating certctl in production or building integrations and need authoritative technical detail.

Doc What it covers
Architecture System design, data flow, security model, deployment topologies
Profiles CertificateProfile policy object — issuer wiring, EKUs, RequiresApproval gate (with profile-edit closure)
API OpenAPI 3.1 spec, integration patterns, client SDK generation
CLI certctl-cli command reference and CI/CD integration patterns
Configuration CERTCTL_* environment variable reference (scheduler, rate limits, deploy verify, audit, agent)
MCP server Model Context Protocol integration for AI assistants
Release verification Cosign / SLSA / SBOM verification procedure
Intermediate CA hierarchy Multi-level CA tree management — RFC 5280 §3.2/§4.2.1.9/§4.2.1.10 enforcement
Auth standards implemented RFC + CWE evidence for the API-key + RBAC + OIDC + sessions + break-glass surface (NOT a compliance-mapping doc)
Deployment model Atomic write, post-deploy verify, rollback semantics across all targets
Vendor matrix Tested vendor versions per target connector

Connectors

The connector index is the canonical catalog (interfaces, registry, scanners, plus an inline reference per built-in). Per-connector deep-dive siblings cover operator-grade material — vendor edges, troubleshooting, rotation playbooks, when-to-use vs alternatives.

Issuers (13 deep-dives): ACME · ADCS · AWS ACM Private CA · DigiCert · EJBCA / Keyfactor · Entrust · GlobalSign Atlas HVCA · Google CAS · Local CA · OpenSSL / Custom CA · Sectigo SCM · step-ca / Smallstep · Vault PKI

Targets (15 deep-dives): Apache · AWS Certificate Manager · Azure Key Vault · Caddy · Envoy · F5 BIG-IP · HAProxy · IIS · Java Keystore · Kubernetes Secrets · NGINX · Postfix / Dovecot · SSH (agentless) · Traefik · Windows Certificate Store

Protocols

Doc What it covers
ACME server Run certctl as an RFC 8555 + RFC 9773 ARI ACME server
ACME server threat model Security posture for the ACME server endpoint
SCEP server RFC 8894 native SCEP server — RA cert config, multi-profile dispatch, must-staple, mTLS sibling route
SCEP for Microsoft Intune Intune-specific deployment guide — NDES replacement playbook
EST server RFC 7030 EST server — 802.1X / Wi-Fi enrollment, IoT bootstrap, channel binding
CRL & OCSP RFC 5280 CRL + RFC 6960 OCSP responder for relying parties
Async CA polling Bounded polling for async-CA issuer connectors

Operator

You're running certctl in production and need operational guidance.

Doc What it covers
Security posture Auth, rate limits, encryption at rest, key rotation, RBAC + OIDC + sessions + break-glass, bootstrap
Secret custody Where private keys live; FileDriver vs HSM/KMS; encryption wire format; env-seeded vs DB-seeded plaintext policy
RBAC operator reference Roles, permissions, scopes, scope-down + day-0 bootstrap
Auth threat model API-key + RBAC + OIDC + sessions + break-glass — token forgery, session hijacking, IdP compromise, role-grant abuse, bootstrap-token leak, audit-mutation
OIDC / SSO runbooks Per-IdP setup guides — Keycloak, Authentik, Okta, Auth0, Entra ID, Google Workspace
Control plane TLS Self-signed bootstrap, operator-supplied Secret, cert-manager Certificate CR
Database TLS PostgreSQL transport encryption
Approval workflow Two-person integrity gate for high-stakes issuance + profile-edit closure
Helm deployment Kubernetes installation via the bundled chart
Performance baselines Operator-runnable benchmarks for regression spot checks
Auth benchmarks Session + OIDC validation p99 targets and measured baselines
Legacy clients (TLS 1.2) Reverse-proxy runbook for embedded EST/SCEP clients on TLS 1.2

Runbooks

Runbook When
Cloud targets AWS ACM + Azure Key Vault deployment, debugging, rollback
Expiry alerts Per-policy multi-channel routing matrix, severity tiers
Disaster recovery CRL cache, OCSP responder cert, CA private-key rotation, Postgres restore
Config-encryption upgrade Force v1/v2 → v3 re-seal across the database; passphrase rotation procedure

Migration

You're moving from another cert-management tool to certctl, or running both in parallel.

From Doc
Certbot migration/from-certbot.md
acme.sh migration/from-acmesh.md
cert-manager (coexistence, not replacement) migration/cert-manager-coexistence.md
Caddy ACME (point Caddy at certctl) migration/acme-from-caddy.md
cert-manager ACME (point cert-manager at certctl) migration/acme-from-cert-manager.md
Traefik ACME (point Traefik at certctl) migration/acme-from-traefik.md
API keys → RBAC (v2.0.x → v2.1.0) migration/api-keys-to-rbac.mdAUDIT YOUR API KEYS post-upgrade
Enable OIDC SSO migration/oidc-enable.md — step-by-step OIDC onboarding for an existing API-key + RBAC deployment

Contributor

You're contributing to certctl, running tests locally, or trying to understand the CI pipeline.

Doc What it covers
Testing strategy What we test and why; per-PR fast gates vs daily deep-scan
Test environment Local environment with real CAs (Pebble, step-ca, etc.)
QA prerequisites Before running QA: stack boot, demo data baseline, env vars
QA test suite qa_test.go reference for release QA
GUI QA checklist Manual GUI verification pass for release
Release sign-off Release-day checklist — code state, automated gates, manual QA, artefact verification
CI pipeline CI shape, regression guards, adding new checks
CI guards Per-class CI guards (code-shape, contract-parity, build/dep, operational); how to add one

Archive

Historical docs preserved for reference. Most operators don't need these.

Doc Why archived
Upgrade to TLS (v2.2) Pre-v2.2 HTTPS-everywhere upgrade procedure
Upgrade past v2 JWT removal G-1 milestone JWT auth removal procedure

Reading order by role

First-time operator: ConceptsQuickstartExamples. About 90 minutes end to end.

Production operator: ArchitectureSecurity postureControl plane TLSDisaster recovery runbook. About 4 hours end to end.

PKI engineer: ACME serverSCEP serverEST serverIntermediate CA hierarchy. About 6 hours end to end.

Contributor: ArchitectureTesting strategyTest environmentCI pipeline. About 3 hours end to end.