连接被拒绝：Docker 中的 MariaDB

Question

早上好，

我配置了 2 个 docker 容器，具有相同的 Dockerfile，但端口不同，请参阅配置

mariadb:
  container_name: mariadb
  image: project/mariadb
  build:
    context: .
    dockerfile: ./docker/mariadb/Dockerfile
  environment:
    MYSQL_ROOT_PASSWORD: "$MYSQL_ROOT_PASSWORD"
    MYSQL_DATABASE: "$MYSQL_DATABASE"
    MYSQL_USER: "$MYSQL_USER"
    MYSQL_PASSWORD: "$MYSQL_PASSWORD"
  command: ['mysqld', '--character-set-server=utf8mb4', '--collation-server=utf8mb4_unicode_ci']
  ports:
    - "3306:3306"
  volumes:
    - mysql_data:/var/lib/mysql
    - ./services/mysql/utf8mb4.cnf:/etc/mysql/conf.d/utf8mb4.cnf:ro

mariadb_test:
  container_name: mariadb_test
  image: project/mariadb
  build:
    context: .
    dockerfile: ./docker/mariadb/Dockerfile
  environment:
    MYSQL_ROOT_PASSWORD: "admin"
    MYSQL_DATABASE: project_test
    MYSQL_USER: foo
    MYSQL_PASSWORD: bar
  command: ['mysqld', '--character-set-server=utf8mb4', '--collation-server=utf8mb4_unicode_ci']
  ports:
    - "3317:3306"
  volumes:
    - ./services/mysql/utf8mb4.cnf:/etc/mysql/conf.d/utf8mb4.cnf:ro

我可以毫无问题地连接到 mariadb（端口：3306）容器，参数保存在 .env 中：

mysql://$MYSQL_USER:$MYSQL_PASSWORD@$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE

但是如果我尝试连接到 mariadb_test，我会得到

SQLSTATE[HY000] [2002] Connection refused

即使我将连接参数硬编码为：

mysql://foo:bar@mariadb_test:3317/project_test

我很沮丧...我做错了什么？

Answer 1

感谢@David Maze 在评论中回答了我的问题：

Connections between containers always use the "normal" ports; they ignore ports: remappings. Use the standard MySQL port 3306 in the database connection string.

连接被拒绝：Docker 中的 MariaDB

Connection refused: MariaDB in Docker

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mariadb