Is multiple default MySQL servers feasible in Docker's phpMyAdmin?

Question

I'm trying to use Docker to build an environment that includes two MySQL servers and a phpMyAdmin server to easily analyze data during development. My docker-compose.yml file is as follows.

version: "3.9"
  services:
    database1:
      container_name: Database1
      image: mysql:8.0.28
      command: --default-authentication-plugin=mysql_native_password
      restart: always
      environment:
        MYSQL_DATABASE: database1
        MYSQL_ROOT_PASSWORD: somepassword
        MYSQL_USER: databaseuser1
        MYSQL_PASSWORD: databaseuser1
      ports:
        - "3306:3306"
      volumes:
        - database-volume:/var/lib/mysql
      networks:
        -my_network
    database2:
      container_name: Database2
      image: mysql:8.0.28
      command: --default-authentication-plugin=mysql_native_password
      restart: always
      environment:
        MYSQL_DATABASE: database2
        MYSQL_ROOT_PASSWORD: somepassword
        MYSQL_USER: databaseuser2
        MYSQL_PASSWORD: databaseuser2
      ports:
        - "3307:3306"
      volumes:
        - second-database-volume:/var/lib/mysql
      networks:
        -my_network
    phpmyadmin:
      container_name: PhpMyAdmin
      image: phpmyadmin/phpmyadmin:5.1.3
      restart: always
      depends_on:
        - database1
        - database2
      environment:
        PMA_HOST: database1, database2
        PMA_PORT: 3306, 3307
        PMA_USER: databaseuser1, databaseuser2
        PMA_PASSWORD: databaseuser1, databaseuser2
      ports:
        - "8080:80"
      networks:
        -my_network
volumes:
  database-volume:
  second-database-volume:

networks:
  my_network:
    driver: bridge

I would like to know if there is a built-in way to achieve this.

Answer 1

Have you tried changing the environment variable PMA_HOST to PMA_HOSTS?

Official phpMyAdmin Docker Image