Commit Graph
3 Commits
Author SHA1 Message Date
JMR-devandClaude Opus 5.5 f362d26ed7 Let the VM list DNS zones so Caddy can present DNS-01 challenges
With DNS resolution fixed, issuance failed at the challenge:

  presenting for challenge: adding temporary record for zone
  "gitea.jasonmross.dev.": googleapi: Error 403: Forbidden

Testing with the VM service account's own token: managedZones/main and
its rrsets return 200, but managedZones (list) returns 403. The
googleclouddns plugin resolves the domain to a zone by listing the
project's managed zones, and listing is a project-level permission that
the zone-scoped dns.admin binding cannot grant.

Grant roles/dns.reader on the project. It adds read access only, in a
project that holds this single zone; every write stays zone-scoped. A
custom role with just dns.managedZones.list was the alternative, but
managing it would need iam.roleAdmin on the cb-infra Pulumi runner,
which widens a far more powerful identity to narrow a read-only one.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 15:37:12 +07:00
JMR-devandClaude Opus 5.5 f0e7a3b66f Keep the ACME contact email in Secret Manager
gitea:acmeEmail sat in Pulumi.prod.yaml, which this public repository
publishes, and was then copied into instance metadata. It now lives in a
gitea-acme-email secret instead, read by the VM when it renders the
Caddyfile.

- scripts/bootstrap.sh creates the secret empty and prints how to set
  it, the same as github-pat: the address is chosen, not generated.
- Pulumi grants the VM secretAccessor on it and nothing more. It is kept
  out of secrets.Names, whose members also get secretVersionAdder and are
  mapped to `gitea generate secret` by vm/bootstrap.sh.
- The gitea:acmeEmail config key and the acme-email metadata entry are
  gone.
- vm/bootstrap.sh renders the whole `email` directive. If the secret is
  unreadable it renders a comment instead and warns: Caddy still issues
  certificates under an account with no contact address, whereas an
  empty `email` would fail to parse and leave nothing serving TLS. Same
  directive-or-comment pattern as CADDY_PUBLISH_PORTS and CADDY_SYSCTL.

README setup gains the secret step, plus two that were missing: ADC
login (Pulumi's GCS backend and provider do not use the gcloud login),
and exporting PULUMI_CONFIG_PASSPHRASE from Secret Manager before
`stack init`. Without the latter, init prompts for a new passphrase and
the stack is encrypted with a key Cloud Build's infra trigger never sees.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 14:39:44 +07:00
JMR-devandClaude Opus 5 c0382d5d31 Gitea on GCE: podman quadlets, Pulumi, Cloud Build
Self-hosted Gitea on a single e2-small AlmaLinux 10 VM in us-east1,
serving gitea.jasonmross.dev.

Runtime is podman quadlets (systemd .container/.network/.volume units).
Both images are built on Debian 13: Gitea from a GPG-verified release
binary, and Caddy from an xcaddy build carrying the Google Cloud DNS
provider (ACME DNS-01) and the Coraza WAF with the OWASP CRS embedded.

Infrastructure is a Pulumi program in Go against a GCS state backend.
Cloud Build handles CI: a push trigger for images, one for infra, and a
weekly scheduled rebuild. Everything Cloud Build touches is 2nd gen.

Notable design decisions, each documented where it lives:

- Quadlets track a floating :prod tag. AutoUpdate=registry compares
  digests for a tag, so a digest-pinned image silently disables
  auto-updates.
- Git transport and LFS bypass the WAF. With the bypass removed, a plain
  git push returns 403 -- packfiles trip CRS reliably.
- gitea:wafMode drives both SecRuleEngine and whether the fail2ban jail
  acting on WAF verdicts exists. Banning on detections that were never
  blocks would turn a tuning false positive into an nftables ban.
- fail2ban bans at the nftables prerouting hook. Published container
  ports are DNAT'd and never traverse INPUT, where the stock actions
  install their rules.
- The DNS zone, backup bucket, and Gitea signing secrets are not
  Pulumi-owned, so pulumi destroy cannot take them with it.
- The podman subnet is pinned because it is what Gitea's
  REVERSE_PROXY_TRUSTED_PROXIES names.

Three update layers: dnf5-automatic for the OS, podman-auto-update with
health-gated rollback for containers, and a weekly image rebuild that
gives the second layer something to pull.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-18 21:45:33 -05:00