docker-compose-prod_template.yml

# Docker compose template for use in production
# Generate a new SECRET_KEY and replace setting below prior to deployment
services:
  web:
    container_name: learning_log-web
    deploy:
      resources:
        limits:
          cpus: "${DOCKER_WEB_CPUS:-0}"
          memory: "${DOCKER_WEB_MEMORY:-0}"
    build: .
    # command: python /code/manage.py runserver 0.0.0.0:8000
    command: gunicorn config.wsgi -b 0.0.0.0:8000
    healthcheck:
      test: "${DOCKER_WEB_HEALTHCHECK_TEST:-curl localhost:8000/healthcheck}"
      interval: "60s"
      timeout: "3s"
      start_period: "5s"
      retries: 3
    volumes:
      - .:/code
    ports:
      - "${DOCKER_WEB_PORT_FORWARD:-127.0.0.1:8000}:${PORT:-8000}"
    depends_on:
      - db
    environment:
    # SECRET_KEY needs to have at least 50 characters. With Base64 encoding,
    # each byte has ~1.3 characters. The following will suffice to pass the
    # Django deploy checklist.
    # Note: if key includes a dollar sign, $, you will need to add an
    # additional dollar sign, $$. This is due to how docker compose handles
    # variable subsitution.
    # python -c 'import secrets; print(secrets.token_urlsafe(38))'
      - "SECRET_KEY=<insert_your_generated_key_here>"
    env_file:
      - ".env"
    restart: "${DOCKER_RESTART_POLICY:-unless-stopped}"
    stop_grace_period: "3s"
    profiles: ["web"]
  db:
    container_name: learning_log-db
    environment:
      POSTGRES_DB:  "${POSTGRES_DB}" 
      POSTGRES_USER: "${POSTGRES_USER}"
      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"
    image: postgres:15.6
    profiles: ["postgres"]
    restart: "${DOCKER_RESTART_POLICY:-unless-stopped}"
    stop_grace_period: "3s"
    volumes:
      - postgres_data:/var/lib/postgresql/data/

volumes:
  postgres_data: