php-Laravel与连接MySQL的Docker问题

我遵循的使用Docker设置Laravel的步骤：在我的本地系统中,我没有安装PHP,Composer,Apache,MySQL,phpMyAdmin等.在我的系统中仅安装了Git和Docker.

> git克隆https://github.com/laravel/laravel.git
>在项目根目录下创建docker-composer.yml文件.

version: "3"
services:
  db:
  image: mysql:5.7
  environment:
    MYSQL_ROOT_PASSWORD: pass
    MYSQL_DATABASE: db
    MYSQL_USER: root
    MYSQL_PASSWORD: pass
  ports:
    - "3306:3306"

web:
  image: php:7.2.2-apache
  container_name: web_laravel
  depends_on:
    - db
  volumes:
    - ./:/var/www/html/
  ports:
    - "4000:80"
  stdin_open: true
  tty: true

phpmyadmin:
  image: phpmyadmin/phpmyadmin
  depends_on:
    - db
  external_links:
    - db:mysql
  ports:
    - "9191:80"
  environment:
    MYSQL_USER: root
    MYSQL_PASSWORD: pass
    MYSQL_ROOT_PASSWORD: pass
    PMA_HOST: db

>从项目根目录运行命令.

docker-compose up

该命令将从本地缓存或Docker Hub中获取所有映像(php：7.2.2-apache,phpmyadmin / phpmyadmin,mysql：5.7),并为这些映像启动三个容器.

现在,我需要与名为web_laravel的php：7.2.2-apache图像容器进行交互(请参见yml文件),以便添加PHP扩展和Composer来运行Laravel项目.
>运行此命令.

docker exec -it web_laravel /bin/bash

现在我可以在运行web_laravel容器中运行任何命令,因此我已经安装了Composer和PHP扩展,例如mbstrings,pdo,pdo_mysql等.

然后使用composer install安装Laravel依赖项,设置存储和bootstrap / cache文件夹的权限,并运行php artisan key：generate.

打开localhost：4000,我可以看到Laravel主页：

至此一切都很好.现在,当我连接到数据库时,问题开始了.

下一条要运行的命令(我仍在容器中)：

  php artisan migrate

错误是：

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

 Illuminate\Database\QueryException  : could not find driver (SQL: select * from information_schema.tables where table_schema = blog and table_name = migrations)

我能够打开phpMyAdmin(http://localhost:9191)并可以创建数据库,表和与操作相关的数据库.我有DB叫做Blog.

MySQL环境变量：

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=blog
DB_USERNAME=root
DB_PASSWORD=pass

解决方法:

我认为您有几个问题,首先是laravel .env配置应指向MySQL容器,而不是本地主机

DB_HOST = 127.0.0.1

应该

DB_HOST = db

您谈论的另一个错误与Docker不相关

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

Illuminate\Database\QueryException : could not find driver (SQL:
select * from information_schema.tables where table_schema = blog and
table_name = migrations)

它可能与缺少依赖项有关,应该运行

作曲家要求教义/ dbal

另外,您说：

now I have access to run any command in running web_laravel container
so I’ve installed composer and php extensions like mbstrings, pdo,
pdo_mysql etc.

您应该在PHP 7 / Apache映像之上构建映像,并将其添加到构建dockerfile中,因为您的更改(php扩展,配置…等)不是持久性的.我建议您使用Laradock或任何其他现有的Laravel / docker环境.

标签：laravel-5,docker,docker-compose,mysql,php
来源： https://codeday.me/bug/20191108/2007271.html