Tanken/docker-compose.yml

services:
  postgres:
    image: postgres:17-alpine
    container_name: tanken-postgres
    restart: unless-stopped
    environment:
      POSTGRES_DB: tanken
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres -d tanken"]
      interval: 10s
      timeout: 5s
      retries: 5

  tanken:
    build: .
    container_name: tanken-webapp
    depends_on:
      postgres:
        condition: service_healthy
    ports:
      - "3847:3847"
    restart: unless-stopped
    volumes:
      - tanken_config:/app/config
    environment:
      - NODE_ENV=production
      - PORT=3847
      - DATABASE_URL=postgresql://postgres:postgres@postgres:5432/tanken
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3847/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 15s

# Explicit volume names: without them Docker prefixes the compose project
# name (usually the directory or stack name), so redeploying from a renamed
# directory / new stack silently creates FRESH EMPTY volumes and the app
# loses its database and config. Pinned names survive any project rename.
volumes:
  postgres_data:
    name: tanken_postgres_data
  tanken_config:
    name: tanken_config