Synology DS218J Redmine立ち上げ(DOCKER)

SynologyのNASのバージョンＵＰすると、パッケージマネージャからRedmineが消えてしまいました。

DOCKER-COMPOSEの立ち上げ

docker-compose.yml

version: '3.8'
services:
  redmine:
    image: redmine
    container_name: redmine
    ports:
      - 8080:3000
    volumes:
      - ./data/plugins:/usr/src/redmine/plugins
      - ./data/themes:/usr/src/redmine/public/themes
    environment:
      REDMINE_DB_MYSQL: redmine-db
      REDMINE_DB_PASSWORD: redmine
    depends_on:
      - redmine-db
    restart: always
    
  redmine-db:
    image: mariadb
    container_name: redmine-db
    ports:
      - 3306:3306
    environment:
      MYSQL_ROOT_PASSWORD: redmine
      MYSQL_DATABASE: redmine
    volumes:
      - ./data/db:/var/lib/mysql
    command: mysqld --character-set-server=utf8 --collation-server=utf8_unicode_ci
    restart: always