compose.yaml

# for local testing of the entire stack
services:
  web:
    build: ./web
    container_name: 3tier-web
    environment:
      - API_HOST=http://api:${API_PORT}
      - PORT=${WEB_PORT}
    ports:
      - 3001:${WEB_PORT}
    healthcheck:
      test: "wget --no-verbose --spider localhost:${WEB_PORT}/"
      interval: 30s
      timeout: 5s
      start_period: 5s
      retries: 3
    depends_on:
      - api
  api:
    build: ./api
    container_name: 3tier-api
    environment:
      - DB_PASS=${DB_PASS}
      - DB_HOST=db
      - PORT=${API_PORT}
    ports:
      - 8081:8080
    healthcheck:
      test: "wget --no-verbose --spider localhost:${API_PORT}/api/status"
      interval: 5s
      timeout: 5s
      start_period: 5s
      retries: 3
    depends_on:
      db:
        condition: service_healthy
        restart: true
  db:
    image: postgres:15-alpine
    container_name: 3tier-db
    environment:
      - POSTGRES_PASSWORD=${DB_PASS}
      - POSTGRES_USER=app
      - POSTGRES_DB=3tier
      - PGDATA=/data/pgdata
    volumes:
      - pgdata:/data
    healthcheck:
      test: "pg_isready -h localhost"
      interval: 30s
      timeout: 5s
      start_period: 5s
      retries: 3
volumes:
  pgdata: