135 lines
6 KiB
Bash
Executable file
135 lines
6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Pull the latest code and roll the docker-compose stack (backend + frontend +
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# PostgreSQL). Run on the VPS — the Forgejo Actions workflow invokes this over
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# SSH, and you can run it by hand too.
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#
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# ssh deploy@vps '/opt/thermograph/deploy/deploy.sh'
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set -euo pipefail
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APP_DIR="${APP_DIR:-/opt/thermograph}"
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BRANCH="${BRANCH:-main}"
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HEALTH_PORT="${HEALTH_PORT:-8137}"
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cd "$APP_DIR"
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# Secrets (POSTGRES_PASSWORD, VAPID keys, AUTH_SECRET, ...) drive compose
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# interpolation and are also loaded into the backend container via env_file.
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#
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# When this host is configured for SOPS (an age key + /etc/thermograph/secrets-env),
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# first render /etc/thermograph.env from the committed encrypted source of truth
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# (deploy/secrets/*.yaml) so a key rotation is just an edit+commit+deploy. The guard
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# on the helper's existence keeps the very deploy that INTRODUCES this file safe: on
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# the first pass the checkout may predate it (it arrives with the git reset below,
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# after which deploy.sh re-execs), so a missing helper simply falls back to the
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# existing /etc/thermograph.env. Then source it so a by-hand run interpolates the
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# same as the systemd unit does. See deploy/render-secrets.sh + deploy/secrets/.
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if [ -f "$APP_DIR/deploy/render-secrets.sh" ]; then
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# shellcheck source=deploy/render-secrets.sh
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. "$APP_DIR/deploy/render-secrets.sh"
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render_thermograph_secrets "$APP_DIR"
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fi
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set -a; . /etc/thermograph.env 2>/dev/null || true; set +a
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# Pre-warm the ~750 city-page archives so /climate pages serve from cache and a
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# search-engine crawl never bursts the archive API quota. Detached inside the
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# backend container (compose exec -d), idempotent (skips already-cached cells),
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# so it never blocks the deploy or health check and is cheap on every deploy
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# after the first full warm.
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warm_city_archives() {
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echo "==> Warming city-page archives in the background (backend:/app/logs/warm-cities.log)"
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docker compose exec -d backend sh -c \
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'python warm_cities.py --pace 2 >> /app/logs/warm-cities.log 2>&1' || true
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}
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# Notify IndexNow (Bing / DuckDuckGo / Yandex) of the site's URLs, but only when
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# the set of pages actually changed (a new/removed city) — code-only deploys skip.
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# Best-effort: never fails the deploy.
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ping_indexnow() {
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echo "==> Pinging IndexNow (only if the URL set changed)"
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local base="${THERMOGRAPH_BASE_URL:-https://thermograph.org}"
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docker compose exec -T backend python indexnow.py --if-changed "$base" \
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|| echo "!! IndexNow ping failed (non-fatal)" >&2
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}
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echo "==> Fetching $BRANCH"
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git fetch --prune origin "$BRANCH"
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git reset --hard "origin/$BRANCH"
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# Re-exec: git reset --hard just rewrote this very file's bytes on disk while
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# it's still running. bash reads a script via buffered, byte-offset I/O, so
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# anything AFTER this point in the OLD execution can read from the wrong
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# offset once the file's size/content changed underneath it -- a classic
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# self-modifying-script footgun. Confirmed live: after this PR added ~15
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# lines above, one deploy ran with the OLD "Building images" log lines even
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# though `git status` showed the checkout correctly at the NEW commit --
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# the file changed under a running interpreter, not the checkout. Restart
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# fresh from the now-updated file so everything after this line is
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# guaranteed self-consistent. Guarded so the second invocation doesn't
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# fetch+reset+re-exec forever.
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if [ -z "${DEPLOY_SH_REEXECED:-}" ]; then
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export DEPLOY_SH_REEXECED=1
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exec "$0" "$@"
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fi
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# Registry-pull cutover (repo-split Stage 6): pull the tag build-push.yml
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# already pushed for this exact commit instead of building in place. Mirrors
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# build-push.yml's own tag computation (sha-<12 hex>) so this always resolves
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# to "whatever HEAD of this branch built to" -- no separate promotion step.
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REGISTRY_HOST="${REGISTRY_HOST:-git.thermograph.org}"
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IMAGE_PATH="${IMAGE_PATH:-emi/thermograph/app}"
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export IMAGE_TAG="sha-$(git rev-parse --short=12 HEAD)"
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export REGISTRY_HOST IMAGE_PATH
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echo "==> Logging in to the registry ($REGISTRY_HOST)"
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echo "$REGISTRY_TOKEN" | docker login "$REGISTRY_HOST" --username emi --password-stdin
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echo "==> Pulling images ($IMAGE_TAG)"
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# Retry: build-push.yml (triggered by the same push) has no ordering
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# guarantee against this deploy -- Forgejo/GitHub Actions `needs:` only
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# works between jobs in ONE workflow file, not across two workflows
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# triggered by the same event. Confirmed live: a real deploy raced ahead of
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# the push and failed with "not found". A bounded retry (~5 min) comfortably
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# covers a normal build; a genuine problem (bad tag, registry down) still
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# fails loudly after that, just a bit slower to surface.
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pull_ok=0
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for i in $(seq 1 30); do
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if docker compose pull backend frontend; then
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pull_ok=1
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break
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fi
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echo " pull attempt $i/30 failed (image may not be pushed yet); retrying in 10s..." >&2
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sleep 10
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done
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if [ "$pull_ok" != 1 ]; then
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echo "!! docker compose pull failed after 30 attempts" >&2
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exit 1
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fi
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# Schema migrations run inside the backend container's entrypoint (alembic
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# upgrade head) before uvicorn starts, so there's no separate migrate step or
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# service restart here — compose owns the process model. frontend has no
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# migrations (stateless). --remove-orphans matters whenever the compose
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# service topology itself changes (e.g. the old single `app` service ->
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# `backend`+`frontend`, repo-split Stage 4): compose only manages containers
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# for services CURRENTLY defined in the file, so a plain `up -d` leaves a
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# renamed-away service's old container running and squatting its port
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# forever -- confirmed live, this is exactly what blocked beta's first
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# dual-service deploy ("port is already allocated").
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echo "==> Starting stack"
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docker compose up -d --remove-orphans
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echo "==> Health check"
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url="http://127.0.0.1:${HEALTH_PORT}/"
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for i in $(seq 1 30); do
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if curl -fsS -o /dev/null "$url"; then
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echo "==> OK: $url is serving"
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warm_city_archives
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ping_indexnow
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exit 0
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fi
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sleep 1
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done
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echo "!! Health check failed for $url" >&2
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docker compose ps || true
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docker compose logs --tail=50 backend || true
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docker compose logs --tail=50 frontend || true
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exit 1
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