docker-compose.yml

# Local sandbox only; ports bind to 127.0.0.1. Run it through make: the
# Makefile gives each checkout its own project name and ports (`make env`), so
# parallel worktrees never collide. The defaults below apply to bare
# `docker compose` only.
name: ${COMPOSE_PROJECT_NAME:-go-fast-stack}

services:
  postgres:
    image: postgres:18-alpine
    restart: unless-stopped
    environment:
      POSTGRES_DB: app
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "127.0.0.1:${POSTGRES_PORT:-5432}:5432"
    volumes:
      - postgres_data:/var/lib/postgresql
    healthcheck: # TCP: the first-boot init server answers on the unix socket only
      test: ["CMD-SHELL", "pg_isready -h 127.0.0.1 -U postgres -d app"]
      interval: 2s
      timeout: 3s
      retries: 15

  pgweb:
    image: sosedoff/pgweb:0.17.0
    restart: unless-stopped
    ports:
      - "127.0.0.1:${PGWEB_PORT:-5050}:8081"
    depends_on:
      postgres:
        condition: service_healthy
    environment:
      PGWEB_DATABASE_URL: postgres://postgres:postgres@postgres:5432/app?sslmode=disable
    command: ["pgweb", "--bind=0.0.0.0", "--listen=8081"]

  # Throwaway server for `make test`: tmpfs storage, durability off. Tests
  # create their own databases on it, so it never needs a volume.
  postgres-test:
    image: postgres:18-alpine
    profiles: [test]
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    command: ["postgres", "-c", "fsync=off", "-c", "synchronous_commit=off", "-c", "full_page_writes=off", "-c", "max_connections=200"]
    ports:
      - "127.0.0.1:${TEST_POSTGRES_PORT:-}:5432" # empty: Docker picks a free port
    tmpfs:
      - /var/lib/postgresql
    healthcheck: # TCP: the first-boot init server answers on the unix socket only
      test: ["CMD-SHELL", "pg_isready -h 127.0.0.1 -U postgres"]
      interval: 1s
      timeout: 3s
      retries: 30

volumes:
  postgres_data: