Thermograph monorepo: graded-climate API + SSR frontend + infra, domain-specific containerized deploys
e4693dce58
All checks were successful
secrets-guard / encrypted (pull_request) Successful in 8s
shell-lint / shellcheck (pull_request) Successful in 10s
PR build (required check) / changes (pull_request) Successful in 16s
PR build (required check) / validate-observability (pull_request) Successful in 18s
PR build (required check) / gate (pull_request) Successful in 2s
PR build (required check) / build-backend (pull_request) Has been skipped
PR build (required check) / build-frontend (pull_request) Has been skipped
The estate had zero alert rules. The only contact point was Grafana's factory default pointing at the literal string <example@email.com>, and beta's untracked compose override routed Grafana's SMTP at prod's Postfix — so alerts, had any existed, would have been delivered by the box most likely to be on fire. Prod served 86 5xx in 24h including five /healthz failures and nobody was told. Alerting (deploys to beta, which is where Grafana runs): - 12 Loki-based rules. There is no Prometheus in this estate and Loki is the only datasource, so every rule is log-derived. - Thresholds come from a 24h backtest that happens to contain a real ~20min prod outage at 04:20Z. Absolute counts, not ratios: prod runs ~7 req/min, so one bad request is 1.4% and a ratio alert would scream all night. The 5xx burst rule fires on the outage's 45 and 22 buckets and on nothing else in the day; the largest benign bucket all day was 5. - Routed to a new private #ops-alerts channel, not to any existing channel — #weather-events, #announcements and #prod are product surfaces that notify real subscribers. - AlertingWatchdog is a dead-man's switch; its value is its absence. - Delivery is proven, not assumed: the rules were provisioned into a throwaway Grafana against beta's live Loki and a real alert arrived in Discord. This matters because GET /api/v1/provisioning/contact-points returns [REDACTED] for the URL — a contact point holding an uninterpolated env var looks perfectly healthy and pages nobody. The only proof is a message arriving. CI gains a structural check, because the existing one only proves YAML parses: an alert rule whose condition names a missing refId is valid YAML, provisions cleanly, and never fires. It also hard-fails on a literal Discord webhook in the repo. Verified against all three breakages deliberately introduced. Postfix supervision: - The 13h outage was a boot-ordering race, not a Docker renumbering: postfix started at 08:09:49, wg0 came up at :51, postfix fataled at :52 on a missing docker_gwbridge address, and dockerd did not finish starting until 08:10:16. Stock postfix@.service is ordered only After=network-online.target and ships no Restart=, so one lost race became a permanent outage. - An ExecStartPre gate now blocks up to 60s until every inet_interfaces address actually exists, which absorbs the transient case inside a single start attempt. That makes bounded retry correct: 5 attempts in 600s, then failed — a genuinely broken config reaches a visible failed state in ~100s instead of re-fataling every 15s forever. - A 5-minute watchdog timer retries indefinitely and runs reset-failed, so "failed" still self-heals. Worst case is ~5 minutes, not 13 hours. - Wants=, not Requires=: a dockerd failure must not take down the loopback and mesh listeners that do not depend on Docker at all. Health checks must read config with `postconf -c`, never postmulti/postqueue/ postfix — those three RESOLVE inet_interfaces and so fatal precisely when an address is missing, which made the first version of this check report status=ok bound=0/0. A health check that fails open is worse than none. DEPLOY.md carries the monitoring contract, including that systemctl is-active postfix is a known-false signal: postfix.service is a wrapper whose ExecStart=/bin/true, so it reports active forever while the real postfix@- instance is failed with zero listeners. Reproduced live. Known gap, documented not fixed: Alloy ships Docker stdout, Caddy files and app JSONL, not journald — so no Postfix line reaches Loki and the mail rules cannot fire until loki.source.journal is added. Claude-Session: https://claude.ai/code/session_0182KTMrsTHJc3TcewCatJFY |
||
|---|---|---|
| .forgejo/workflows | ||
| backend | ||
| frontend | ||
| infra | ||
| observability | ||
| CLAUDE.md | ||
| CUTOVER-NOTES.md | ||
| README.md | ||
thermograph
The Thermograph monorepo — the split repos reunified (2026-07-22) with full history via subtree merges, while keeping everything the split was actually for: per-domain images, per-domain deploys, and an async FE/BE contract.
Domains
| Dir | What | CI |
|---|---|---|
backend/ |
FastAPI graded-climate API, accounts, notifications (Discord bot, push, mail), data pipeline | backend-build-push → image emi/thermograph/backend; backend-deploy[-prod|-dev] |
frontend/ |
Public client: static JS/CSS + SSR pages | frontend-* mirrors of the above; image emi/thermograph/frontend |
infra/ |
Compose, deploy scripts, terraform, SOPS secrets vault, ops cron | infra-sync (host checkout + secrets render), secrets-guard, ops-cron |
observability/ |
Loki + Grafana + Alloy stack | observability-validate |
thermograph-docs deliberately stays its own repo (ADRs + runbooks, no
build artifacts, different change cadence).
How CI stays decoupled
Every workflow in .forgejo/workflows/ is path-filtered to its domain: a
push touching only frontend/** builds/deploys nothing else. Images stay
separate (emi/thermograph/backend, emi/thermograph/frontend, each tagged
sha-<12hex>), deploys stay per-service (infra/deploy/deploy.sh SERVICE=backend|frontend|all), and the API version contract
(GET /api/version, PAYLOAD_VER) still lets FE and BE ship out of lockstep.
The one intentionally coupled piece is pr-build.yml: a single always-running
gate required check that builds only the domains a PR touches (a
path-filtered required check would deadlock auto-merge).
Branch model (unchanged from the split era): PRs → dev, main → beta,
release → prod; infra tracked via main on all hosts.
Before pointing anything live at this repo, read CUTOVER-NOTES.md.