Coolify's HTTP health check hits localhost:3000 from the host — but the
container port is only reachable inside the Docker network via Traefik.
Docker's own HEALTHCHECK runs inside the container where localhost works.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Node.js/Express API server that connects to PostgreSQL via environment variables.
Includes health check, table listing, row queries, and raw SQL endpoint.
Designed for deployment in Coolify alongside the snakkimo PostgreSQL container.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>