services:
  chatmail:
    build:
      context: ./
      dockerfile: docker/chatmail_relay.dockerfile
    image: chatmail-relay:latest
    restart: unless-stopped
    container_name: chatmail
    # Required for systemd — use only one of the following:
    cgroup: host          # compose v2 only
    # privileged: true    # compose v1 (not tested)
    tty: true # required for logs
    tmpfs: # required for systemd
      - /tmp
      - /run
      - /run/lock
    logging:
      driver: json-file
      options:
        max-size: "10m"
        max-file: "3"
    environment:
      CHANGE_KERNEL_SETTINGS: "False"
      MAIL_DOMAIN: $MAIL_DOMAIN
      ACME_EMAIL: $ACME_EMAIL
      RECREATE_VENV: $RECREATE_VENV
      MAX_MESSAGE_SIZE: $MAX_MESSAGE_SIZE
      DEBUG_COMMANDS_ENABLED: $DEBUG_COMMANDS_ENABLED
      FORCE_REINIT_INI_FILE: $FORCE_REINIT_INI_FILE
      USE_FOREIGN_CERT_MANAGER: $USE_FOREIGN_CERT_MANAGER
      ENABLE_CERTS_MONITORING: $ENABLE_CERTS_MONITORING
      CERTS_MONITORING_TIMEOUT: $CERTS_MONITORING_TIMEOUT
      IS_DEVELOPMENT_INSTANCE: $IS_DEVELOPMENT_INSTANCE
      CMDEPLOY_STAGES: ${CMDEPLOY_STAGES:-}
    network_mode: "host"
    volumes:
      ## system
      - /sys/fs/cgroup:/sys/fs/cgroup:rw # required for systemd
      - ./:/opt/chatmail

      ## data
      - ./data/chatmail:/home
      - ./data/chatmail-dkimkeys:/etc/dkimkeys
      - ./data/chatmail-acme:/var/lib/acme

      ## custom resources
      # - ./custom/www/src/index.md:/opt/chatmail/www/src/index.md

      ## debug
      # - ./docker/files/setup_chatmail_docker.sh:/setup_chatmail_docker.sh
      # - ./docker/files/entrypoint.sh:/entrypoint.sh
      # - ./docker/files/update_ini.sh:/update_ini.sh