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rootnode-academy/docs/RUNBOOK_TLS_RENEWAL.md
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ced4568 bf1e1b5c76 docs(phase4): production infrastructure documentation + runbooks
Master overview (PHASE4_PRODUCTION_INFRASTRUCTURE.md) plus five detail docs
(PRODUCTION_DEPLOYMENT, PRODUCTION_NETWORK_SECURITY, BACKUP_DR,
OBSERVABILITY, CAPACITY_PLANNING), a master PRODUCTION_VALIDATION_CHECKLIST,
and 12 runbooks (first deployment, normal deploy, rollback, Postgres
restore, VM rebuild for both hosts, Docker TLS rotation, TLS renewal, owner
recovery, stuck Lab cleanup, failed migration, backup failure, disk
failure, Lab Host resource pressure).

PRODUCTION_NETWORK_SECURITY.md prominently documents the one genuine
architectural gap this phase surfaced: the Gateway's existing
env.internal_ip mechanism for reaching a Lab container assumes Gateway and
Lab share a Docker daemon, which breaks once Labs run on a genuinely
separate rn-lab-host-01 VM. The network-policy half is built (a firewall
allowance for Gateway->Lab-Host on a published port range); the
application half (Provisioner/Gateway address handling) is an explicit,
reviewed, NOT-YET-BUILT follow-up flagged there rather than silently
decided.

Updated LAB_ARCHITECTURE.md, ENGINEERING_SOP.md, README.md, and
platform/README.md with Phase 4 pointers, consistent with how every prior
phase updated these.

Status: PHASE 4 BUILD COMPLETE / PRODUCTION DEPLOYMENT PENDING HARDWARE.
2026-08-18 17:13:51 -05:00

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1.1 KiB
Markdown

# Runbook: Public TLS Certificate Renewal
If using Caddy's built-in Let's Encrypt (the default in `infra/docker/platform/Caddyfile.j2`):
**nothing to do** — Caddy renews automatically well before expiry, as long as port 80 stays
reachable for the ACME HTTP-01 challenge (`infra/firewall/rn-platform-01.rules` already allows
it). `infra/scripts/production-smoke-test.sh` checks the live expiry date on every run as an
early warning if auto-renewal ever silently breaks.
If using Cloudflare origin certs instead (see `docs/PRODUCTION_NETWORK_SECURITY.md` §8 for
that decision): Cloudflare-issued origin certs are typically 15-year validity — this is a
once-per-network-topology-change concern, not a recurring one. Re-issue from the Cloudflare
dashboard (SSL/TLS -> Origin Server) and redeploy the cert/key via the `platform` Ansible role
if it ever needs replacing (domain change, suspected compromise).
**Manual check:**
```bash
echo | openssl s_client -connect academy.example.com:443 -servername academy.example.com 2>/dev/null \
| openssl x509 -noout -enddate
```