MySQL in Docker returns “The server requested auth

问题:

I use a Docker web stack for Symfony 4 project. MySQL configuration is :

mysql:
    image: mysql
    container_name: sf4_mysql
    volumes:
        - .docker/data/db:/var/lib/mysql
    environment:
        MYSQL_ROOT_PASSWORD: root
        MYSQL_DATABASE: ***
        MYSQL_USER: ***
        MYSQL_PASSWORD: ***

The pulled image from Docker Hub is MySQL 8 and when I tried to create database with doctrine:database:create I received this message :

2018-09-17T11:53:51+00:00 [error] Error thrown while running command "doctrine:database:create". Message: "An exception occurred in driver: SQLSTATE[HY000] [2054] The server requested authentication me thod unknown to the client"

In AbstractMySQLDriver.php line 126:

An exception occurred in driver: SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client

In PDOConnection.php line 50:

SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client

In PDOConnection.php line 46:

SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client

In PDOConnection.php line 46:

PDO::__construct(): The server requested authentication method unknown to the client [caching_sha2_password]

回答1:

MySQL 8.0 uses "Pluggable Authentication" - You can solve the issue by taking the following steps.

1. Open your my.cnf and add the following entry (and restart MySQL)

   [mysqld]

   default_authentication_plugin=mysql_native_password

2. Create a user (your MYSQL_USER name) using the correct 8.0 syntax for generating the password (see below)

   IDENTIFIED WITH mysql_native_password

Flush the pivileges and try again. That should do the trick.

回答2:

just update your docker-compose file as given below and rebuild the image.

 mysql:
    image: mysql
    command: --default-authentication-plugin=mysql_native_password
    container_name: sf4_mysql
    volumes:
        - .docker/data/db:/var/lib/mysql
    environment:
        MYSQL_ROOT_PASSWORD: root
        MYSQL_DATABASE: ***
        MYSQL_USER: ***
        MYSQL_PASSWORD: ***