无法在Docker中登录mysql容器

Question

我正在尝试建立一个具有1个node.js服务器和1个mysql数据库的应用程序。 我正在尝试将其与docker集成。 我在尝试从node.js应用程序登录mysql时遇到问题。

简而言之-这是我docker-compose.yml文件

version: '2.1'

services:
  db:
    build: ./db
    restart: always
    environment:
      # - MYSQL_ALLOW_EMPTY_PASSWORD=yes
      - MYSQL_DATABASE=subscriptions
      - MYSQL_PASSWORD=supersecretpassword
      - MYSQL_ROOT_PASSWORD=supersecretpassword
      - MYSQL_USER=root
    healthcheck:
      test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
      interval: 30s
      timeout: 1s
      retries: 1


  subscription_api:
    build: ./subscription_api_server
    restart: always
    depends_on:
      db:
        condition: service_healthy
    ports:
      - "5000:5000"

我的Dockerfile于mySQL的Dockerfile

CREATE DATABASE IF NOT EXISTS subscriptions;

grant all privileges on *.* to root@localhost identified by 'supersecretpassword' with grant option;
FLUSH PRIVILEGES;

我的node.js应用程序使用sequelize作为ORM，并在此处指定连接字符串config.js

"development": {
    "username": "root",
    "password": "supersecretpassword",
    "database": "subscriptions",
    "host": "db",
    "dialect": "mysql"
  },

当我运行docker-compose up -我从node.js应用程序中收到以下错误

subscription_api_1  | Sequelize CLI [Node: 10.12.0, CLI: 5.1.0, ORM: 4.39.0]
subscription_api_1  | 
subscription_api_1  | Loaded configuration file "config/config.json".
subscription_api_1  | Using environment "development".
subscription_api_1  | Sun, 14 Oct 2018 17:50:17 GMT sequelize deprecated String based operators are now deprecated. Please use Symbol based operators for better security, read more at http://docs.sequelizejs.com/manual/tutorial/querying.html#operators at node_modules/sequelize/lib/sequelize.js:242:13
subscription_api_1  | 
subscription_api_1  | ERROR: Client does not support authentication protocol requested by server; consider upgrading MySQL client

但是当我尝试直接SSH到我的docker容器时，用户名/密码有效

sudo docker exec -it fullstack-dev-assignment_db_1 bash
root@d36f499b706e:/# mysql -u root -p 
Enter password: 
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
root@d36f499b706e:/# mysql -u root -p 
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.

我设置sequelize的方式有问题吗？

Answer 1

我猜您最终将拉到mysql:latest docker映像，在这种情况下，它将来自8.0系列。 问题是MySQL 8.0现在使用的默认身份验证插件与sequelize使用的社区Node.js驱动程序不兼容。

您应按照此处描述的步骤克服该限制。

在您的情况下，除了授予特权外，您还必须首先切换用户身份验证插件。

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'supersecretpassword';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION;
FLUSH PRIVILEGES;