Modification of the piler (mailpiler) docker-compose for use with Unraid and Compose Manager Plugin

0-piler_docker_on_unraid.md

Original docker-compose.yml:
https://github.com/jsuto/piler/blob/master/docker/docker-compose.yaml

Essentially, I just moved the things that need setting to the .env file, and mapped the named volumes to appdata.
This is the open source edition, but the compose file for the enterprise edition is setup in a similar way.

Requirements:
Docker Compose Manager plugin:
https://forums.unraid.net/topic/114415-plugin-docker-compose-manager/

Setup:

1. Once Compose Manager is installed goto the bottom of the Docker page and click Add New Stack.
2. Give your stack an appropriate name, ie: mailpiler.
3. Now Edit your new stack.
4. Select the compose file.
5. Copy over the contents of 1-docker-compose.yml and save changes.
6. Stack labels...
   For mysql - Icon: /mnt/user/appdata/mailpiler/mariadb.png
   For piler:
   Icon: /mnt/user/appdata/mailpiler/piler.png
   Web UI: http://[IP]:[PORT:pick_a_port]
   Click ok.
7. Now Edit the stack again.
8. Select the env file.
9. Copy over the contents of 2-env.
10. Edit the details for your setup and save changes,
11. Now you MUST manually create the folders in appdata, main mailpiler folder plus 4 subfolders, you defined in the .env file.
12. You can also find and add icons to the mailpiler main folder to use in the Unraid gui.
13. Once folders are created, and optionally icons found and saved, click Compose Up.
14. It should download, start, and say connection closed eventually.
15. Should be able to login to the webui.
    Username: admin@local
    Password: pilerrocks
16. From here is your own adventure.

1-docker-compose.yml

services:
  mysql:
    image: mariadb:11.1.2
    container_name: mysql
    restart: unless-stopped
    cap_drop:
      - ALL
    cap_add:
      - dac_override
      - setuid
      - setgid
    environment:
      - MYSQL_DATABASE=piler
      - MYSQL_USER=piler
      - MYSQL_PASSWORD=${SQL_PASS}
      - MYSQL_RANDOM_ROOT_PASSWORD=yes
    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
    volumes:
      - db_data:/var/lib/mysql
  piler:
    image: sutoj/piler:${VERSION:-1.4.5}
    container_name: piler
    init: true
    environment:
      - MYSQL_HOSTNAME=mysql
      - MYSQL_DATABASE=piler
      - MYSQL_USER=piler
      - MYSQL_PASSWORD=${SQL_PASS}
      - PILER_HOSTNAME=${ARCHIVE_HOST}:${ARCHIVE_PORT}
      - RT=1
    ports:
      - "${SMTP_PORT}:25"
      - "${ARCHIVE_PORT}:80"
    volumes:
      - piler_etc:/etc/piler
      - piler_manticore:/var/piler/manticore
      - piler_store:/var/piler/store
    healthcheck:
      test: curl -s smtp://localhost/
      interval: "20s"
      timeout: "3s"
      start_period: "15s"
      retries: 3
    deploy:
      resources:
        reservations:
          memory: 512M
        limits:
          memory: 512M

    depends_on:
      - "mysql"

volumes:
  db_data:
    driver: local
    driver_opts:
      type: none
      o: bind
      device: ${DB_DATA}
  piler_etc:
    driver: local
    driver_opts:
      type: none
      o: bind
      device: ${PILER_ETC}
  piler_manticore:
    driver: local
    driver_opts:
      type: none
      o: bind
      device: ${PILER_MANTICORE}
  piler_store:
    driver: local
    driver_opts:
      type: none
      o: bind
      device: ${PILER_STORE}

2-env

# local ip does work here for setup, but you will likely need a real https domain for it to work properly
ARCHIVE_HOST=192.168.4.5
# webui port
ARCHIVE_PORT=pick_a_port
# smtp port
SMTP_PORT=25
# mysql(mariadb) password
SQL_PASS=you_should_set_a_better_password
# local mapped folders
DB_DATA=/mnt/user/appdata/mailpiler/db_data
PILER_ETC=/mnt/user/appdata/mailpiler/piler_etc
PILER_MANTICORE=/mnt/user/appdata/mailpiler/piler_manticore
PILER_STORE=/mnt/user/appdata/mailpiler/piler_store