Ben Stull
56 lines
2.1 KiB
Bash
56 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# Preview container entrypoint (flotilla SPEC §15).
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#
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# 1. Render nginx against Cloud Run's $PORT.
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# 2. Start the single-process uvicorn (which runs DB migrations on startup via
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# the app lifespan — §4.2: one process, one SQLite file, never scale workers).
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# 3. On a brand-new DB, apply the SYNTHETIC seed fixture so the preview shows
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# realistic content with no real user PII (§15).
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# 4. Hand the foreground to nginx.
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#
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# This is preview-only plumbing — production runs uvicorn under systemd and nginx
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# under the OS, never this script.
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set -euo pipefail
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: "${PORT:=8080}"
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: "${DATABASE_PATH:=/opt/rfc-app/backend/data/rfc-app.db}"
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export PORT DATABASE_PATH
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mkdir -p "$(dirname "$DATABASE_PATH")"
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# Render the nginx config with the injected port.
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envsubst '${PORT}' \
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< /opt/rfc-app/deploy/preview/nginx.conf.template \
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> /etc/nginx/nginx.conf
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fresh=0
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[ -f "$DATABASE_PATH" ] || fresh=1
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# Start uvicorn (backgrounded); the app's lifespan runs migrations on boot.
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cd /opt/rfc-app/backend
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uvicorn app.main:app --host 127.0.0.1 --port 8000 &
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UVICORN_PID=$!
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# Seed synthetic data once the schema exists (only on a fresh DB).
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if [ "$fresh" = "1" ]; then
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for _ in $(seq 1 30); do
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if [ -f "$DATABASE_PATH" ] \
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&& sqlite3 "$DATABASE_PATH" "SELECT 1 FROM schema_migrations LIMIT 1;" >/dev/null 2>&1; then
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break
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fi
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sleep 1
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done
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if sqlite3 "$DATABASE_PATH" < /opt/rfc-app/deploy/preview/seed.sql; then
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echo "[preview-entrypoint] applied synthetic seed" >&2
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else
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# Best-effort: a seed that drifts from the schema must not block the
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# preview from booting (it still serves /api/health + an empty app).
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echo "[preview-entrypoint] WARNING: synthetic seed failed (schema drift?) — continuing" >&2
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fi
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fi
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# nginx in the foreground becomes the container's main process. (uvicorn is a
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# reparented child; for an ephemeral preview the hard stop on instance teardown
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# is fine — a process supervisor is a follow-up if graceful drain matters.)
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exec nginx -g 'daemon off;'
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