Docker compose files: local + swarm stack

docker-compose.override.yml

version: '3.4'

services:
  mysql:
    volumes:
      - db:/var/lib/mysql
    ports:
      - 3306:3306
    environment:
      - MYSQL_PASSWORD=database_password

  php:
    user: '1000'
    depends_on:
      - mysql
    volumes:
      - ./:/usr/share/nginx/html

  nginx:
    ports:
      - 8080:80
    depends_on:
      - php
    volumes:
      - ./:/usr/share/nginx/html

volumes:
  db: {}

docker-compose.prod.yml

# Production deploy swarm stack CI/CD

# ... build images ...
# ... push images to [public/private] docker registry ...

# Generate full docker compose file + env variable substitution
# $ SHORT_COMMIT_ID=e92fea9 docker-compose -f docker-compose.yml -f docker-compose.prod.yml config > prod.yml
# $ cat prod.yml | ssh user@server sudo docker stack deploy -c - wordpress --prune --with-registry-auth

version: '3.4'

services:
  mysql:
    image: mysql:5.7
    secrets:
      - db_pwd
    environment:
      - MYSQL_PASSWORD_FILE=/run/secrets/db_pwd

    volumes:
      - /path-gluster-mount/mysql:/var/lib/mysql

    deploy:
      replicas: 1
      update_config:
        parallelism: 1
        delay: 2s
        order: start-first
        monitor: 1s
        failure_action: rollback
      restart_policy:
        condition: any
        delay: 1s
        max_attempts: 3
      resources:
        limits:
          cpus: '0.10'
          memory: 400M
        reservations:
          cpus: '0.05'
          memory: 250M

  php:
    image: your/image:wp_php_${SHORT_COMMIT_ID}

    secrets:
      - source: wp_config
        target: /usr/share/nginx/html/public/wp-config.php

    volumes:
      - /path-gluster-mount/wp-content/uploads:/usr/share/nginx/html/public/wp-content/uploads
      - /path-gluster-mount/wp-content/upgrade:/usr/share/nginx/html/public/wp-content/upgrade
      - /path-gluster-mount/wp-content/cache:/usr/share/nginx/html/public/wp-content/cache
      - /path-gluster-mount/wp-content/blogs.dir:/usr/share/nginx/html/public/wp-content/blogs.dir
      - /path-gluster-mount/wp-content/backups:/usr/share/nginx/html/public/wp-content/backups

    deploy:
      replicas: 1
      update_config:
        parallelism: 1
        delay: 2s
        order: start-first
        monitor: 1s
        failure_action: rollback
      restart_policy:
        condition: any
        delay: 1s
        max_attempts: 3
      resources:
        limits:
          cpus: '0.10'
          memory: 200M
        reservations:
          cpus: '0.05'
          memory: 80M

  nginx:
    image: your/image:wp_nginx_${SHORT_COMMIT_ID}

    volumes:
      - /path-gluster-mount/wp-content/uploads:/usr/share/nginx/html/public/wp-content/uploads
      - /path-gluster-mount/wp-content/upgrade:/usr/share/nginx/html/public/wp-content/upgrade
      - /path-gluster-mount/wp-content/cache:/usr/share/nginx/html/public/wp-content/cache
      - /path-gluster-mount/wp-content/blogs.dir:/usr/share/nginx/html/public/wp-content/blogs.dir
      - /path-gluster-mount/wp-content/backups:/usr/share/nginx/html/public/wp-content/backups

    deploy:
      replicas: 1
      update_config:
        parallelism: 1
        delay: 2s
        order: start-first
        monitor: 1s
        failure_action: rollback
      restart_policy:
        condition: any
        delay: 1s
        max_attempts: 3
      resources:
        limits:
          cpus: '0.10'
          memory: 200M
        reservations:
          cpus: '0.05'
          memory: 50M

# create your secrets
secrets:
  db_pwd:
    external: true
  wp_config:
    external: true

docker-compose.yml

version: '3.4'

services:
  mysql:
    image: mysql:5.7
    environment:
      - MYSQL_RANDOM_ROOT_PASSWORD=1
      - MYSQL_DATABASE=community
      - MYSQL_USER=community
    networks:
      - net

  php:
    # https://github.com/falmar/docker-repos/tree/master/php/7.1
    image: falmar/php:7.1
    networks:
      - net

  nginx:
    # https://github.com/falmar/docker-repos/tree/master/nginx/laravel
    image: falmar/nginx:laravel
    networks:
      - net

networks:
  net: {}