common/firewall/docker-tls/platform/lab-host/monitoring-agent/backup roles, orchestrated by site.yml with the ordering that matters (firewall/TLS land before the services that depend on them). Ansible Vault for secrets, no new tool introduced for this project's modest secret surface. Explicit dev/staging/production environment separation, no secrets committed (.gitignore covers vault plaintext, TLS keys, Terraform state, *.env). Validated: ansible-playbook --syntax-check clean.
Environment configuration
Three environments, explicitly separated so production never silently inherits a dev default:
| dev | staging | production | |
|---|---|---|---|
| Where it runs | any dev machine, platform/docker-compose.dev.yml |
homelab or a resource-limited slice of the dedicated server once it exists | rn-platform-01 / rn-lab-host-01 on Proxmox |
COOKIE_SECURE |
unset (plain HTTP) | 1 if served over HTTPS, else unset |
1 — required |
TRUST_PROXY |
unset | 1 if fronted by a proxy |
1 — required, real reverse proxy in front |
ADMIN/owner bootstrap |
platform/api/bootstrap-owner.js manually |
same, against staging DB | same, against production DB, run once by a human, credential handled per docs/PRODUCTION_DEPLOYMENT.md §10 |
| Secrets | platform/.env (gitignored, throwaway) |
infra/environments/staging/*.env (gitignored, real but low-stakes) |
infra/environments/production/*.env (gitignored, real, backed up per docs/BACKUP_DR.md) |
| Lab image | built locally, :test tag |
tagged build from CI, :staging-<sha> |
tagged release, :<sha> or :vX.Y.Z, never :latest |
Each environment directory holds *.env.template files (tracked) — copy to *.env (gitignored
via infra/.gitignore) and fill in real values. Never commit a filled .env file. See
docs/PRODUCTION_DEPLOYMENT.md §10 for how production secrets are actually generated, stored,
and rotated (not just "don't commit them").
dev/ is intentionally thin — it just points back at the existing
platform/docker-compose.dev.yml workflow (Phase 1–3B, unchanged); there was nothing new to
build there for Phase 4.