version: "3"
services:

  mysql:
    image: mariadb:${MARIA_DB_VERSION}
    container_name: mysql_piler
    restart: unless-stopped
    cap_drop:
      - ALL
    cap_add:
      - dac_override
      - setuid
      - setgid
    environment:
      - MYSQL_DATABASE=${MYSQL_DATABASE}
      - MYSQL_USER=${MYSQL_USER}
      - MYSQL_PASSWORD=${MYSQL_PASSWORD}
      - MYSQL_RANDOM_ROOT_PASSWORD=yes
      - TZ="Europe/Berlin"
    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
    healthcheck:
      test: mysql --user=${MYSQL_USER} --password=${MYSQL_PASSWORD} piler --execute "show tables"
      interval: "60s"
      timeout: "5s"
      start_period: "15s"
      retries: 3
    volumes:
      - db_data:/var/lib/mysql

  memcached:
    image: memcached:latest
    container_name: memcached_piler
    restart: unless-stopped
    cap_drop:
      - ALL
    command: -m 64

  piler:
    image: simatec/piler:${PILER_VERSION}
    container_name: piler
    restart: unless-stopped
    hostname: ${PILER_DOMAIN}
    init: true
    environment:
      - MYSQL_DATABASE=${MYSQL_DATABASE}
      - MYSQL_USER=${MYSQL_USER}
      - MYSQL_PASSWORD=${MYSQL_PASSWORD}
      - MYSQL_HOSTNAME=mysql
      - PILER_HOSTNAME=${PILER_DOMAIN}
      - MEMCACHED_HOST=memcached
      - TZ=${TIME_ZONE}
    ports:
      - "25:25"
      - "80:80"
      - "443:443"
    volumes:
      - piler_etc:/etc/piler
      - piler_var_store:/var/piler/store
      - piler_var_manticore:/var/piler/manticore
      - piler_var_imap:/var/piler/imap
      - piler_var_stat:/var/piler/stat
      - piler_cron:/var/spool/cron/crontabs
      - /etc/localtime:/etc/localtime:ro
    healthcheck:
      test: curl -s smtp://localhost/
      interval: "60s"
      timeout: "3s"
      start_period: "15s"
      retries: 3
    deploy:
      resources:
        reservations:
          memory: 512M
        limits:
          memory: 512M

    depends_on:
      - "memcached"
      - "mysql"

volumes:
  db_data:
  piler_etc:
  piler_var_store:
  piler_var_manticore:
  piler_var_imap:
  piler_var_stat:
  piler_cron: