使用 Docker 部署 laravel 项目时出现 mysql 错误答案

【问题标题】：Get mysql error when deploy laravel project with Docker使用 Docker 部署 laravel 项目时出现 mysql 错误
【发布时间】：2017-05-23 14:52:40
【问题描述】：

我想用与远程服务器相同的环境来测试我的 laravel 项目。所以我尝试使用 Docker（以前从不知道）。我安装了 docker，并按照项目中的说明使用 docker 部署它。设置

将文件 .env.example 复制到 .env，将 docker-compose.yml.example 复制到 docker-compose.yml

修改 .env 配置文件（可选）。如果修改 .env 文件中的 mysql、mongo、redis 配置，记得也要修改 docker-compose.yml 文件中的配置。安装或运行 Docker

docker-compose up -d

// 停止

docker-compose stop

chmod 缓存文件夹

chmod -R 777 storage

chmod -R 777 bootstrap/cache

部署

sh deploy.sh

运行sh doploy.sh 后出现此错误：

   [Illuminate\Database\QueryException]                                                              
  SQLSTATE[HY000] [2002] No such file or directory (SQL: select * from information_schema.tables where table_schema = awesome_teacher and table_name = migrations)
 [Doctrine\DBAL\Driver\PDOException]               
  SQLSTATE[HY000] [2002] No such file or directory  

  [PDOException]                                    
  SQLSTATE[HY000] [2002] No such file or directory  

  [Illuminate\Database\QueryException]                                                              
  SQLSTATE[HY000] [2002] No such file or directory (SQL: select * from information_schema.tables w  
  here table_schema = homestead_test and table_name = migrations)                                                               
  [Doctrine\DBAL\Driver\PDOException]               
  SQLSTATE[HY000] [2002] No such file or directory
[PDOException]                                    
    SQLSTATE[HY000] [2002] No such file or directory

文件“docker-compose.yml”：

version: '2'

### Change the `teacher` with your own teacher name ###
services:
    application:
        container_name: teacher_application
        image: debian
        volumes:
            - ./:/var/www/laravel
    workspace:
        container_name: teacher_workspace
        restart: always
        image: my_company/laravel-workspace
        volumes_from:
            - application
        tty: true
    php-fpm:
        container_name: teacher_php-fpm
        restart: always
        image: my_company/laravel-php-fpm
        volumes_from:
            - application
        expose:
            - "9000"
        links:
            - workspace
    nginx:
        container_name: teacher_nginx
        restart: always
        image: my_company/laravel-nginx
        volumes_from:
            - data
            - logs
            - application
        ports:
            - "8000:80"
        links:
            - php-fpm
    data:
        container_name: teacher_data
        image: debian
        volumes:
            - .docker/mysql:/var/lib/mysql
            - .docker/data:/data
    data_test:
        container_name: teacher_data_test
        image: debian
        volumes:
            - .docker/mysql_test:/var/lib/mysql
            - .docker/data_test:/data
    logs:
        container_name: teacher_logs
        image: debian
        volumes:
            - .docker/logs/nginx:/var/log/nginx
            - .docker/logs/mongodb:/var/log/mongodb
    mysql:
        container_name: teacher_mysql
        restart: always
        image: mysql
        volumes_from:
            - data
            - logs
        expose:
            - "3306"
        environment:
            MYSQL_DATABASE: awesome_teacher
            MYSQL_USER: root
            MYSQL_PASSWORD: blablabla
            MYSQL_ROOT_PASSWORD: blablabla
    mysql_test:
        container_name: teacher_mysql_test
        restart: always
        image: mysql
        volumes_from:
            - data_test
        expose:
            - "3306"
        environment:
            MYSQL_DATABASE: homestead_test
            MYSQL_USER: homestead_test
            MYSQL_PASSWORD: secret
            MYSQL_ROOT_PASSWORD: root

文件“.env”：

APP_ENV=local
APP_KEY=base64:hl4qkfCdHiJrCG4sGfYfMU8faq3WywMHkH+mr/FiDu9PM=
APP_DEBUG=true
APP_LOG_LEVEL=debug
APP_URL=awesome-teacher.local
APP_DOMAIN='awesome-teacher.local'


DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=awesome_teacher
DB_USERNAME=root
DB_PASSWORD=blablabla

DB_TEST_CONNECTION=mysql_test
DB_TEST_HOST=localhost
DB_TEST_PORT=3308
DB_TEST_DATABASE=homestead_test
DB_TEST_USERNAME=homestead_test
DB_TEST_PASSWORD=secret

BROADCAST_DRIVER=log
CACHE_DRIVER=file
SESSION_DRIVER=file
QUEUE_DRIVER=sync

PUSHER_APP_ID=
PUSHER_KEY=
PUSHER_SECRET=

【问题讨论】：

DB_HOST 应该是您的 MySQL 服务名称，它是 mysql 而不是 localhost
我找到答案了，谢谢

标签： mysql laravel docker

【解决方案1】：

对于一个简单的 laravel 应用程序，您有相当复杂的设置。问题是您的 laravel 应用程序尝试连接到其自己容器中的 MySQL 服务器实例。

将DB_HOST=localhost 更改为DB_HOST=mysql 以连接到mysql 容器。

【讨论】：