Laravel Sail 重建默认数据库 第一个sail up，DB_DATABASE=forge第二个sail up，DB_DATABASE=test删除现有卷后启动sail down 选项测试 - https://laravel.build/example-app测试-laravel 新项目

问题描述

根据文档：

此外，当 MysqL 容器启动时，它会确保存在一个名称与您的 DB_DATABASE 环境变量的值匹配的数据库。

我的 .env 文件看起来像这样。

DB_CONNECTION=MysqL
DB_HOST=MysqL
DB_PORT=3306
DB_DATABASE=test
DB_USERNAME=root
DB_PASSWORD=

然而，当我尝试通过 sail artisan migrate 运行迁移时，我得到了这个错误： sqlSTATE[HY000] [1049] UnkNown database 'test' (sql: select * from information_schema.tables where table_schema = test and table_name = migrations and table_type = 'BASE TABLE')

我尝试过的：

• 同时删除 docker 容器和图像。
• 运行 sail build --no-cache（尝试完全重建所有内容）
• 运行 sail shell 时，我进入 MysqL 并显示所有数据库。我可以在那里看到默认的 Laravel 数据库。

您如何告诉风帆创建正确的 DB_DATABASE？

我的docker-compose.yml：

# For more information: https://laravel.com/docs/sail
version: '3'
services:
    laravel.test:
        build:
            context: ./vendor/laravel/sail/runtimes/8.0
            dockerfile: Dockerfile
            args:
                WWWGROUP: '${WWWGROUP}'
        image: sail-8.0/app
        ports:
            - '${APP_PORT:-80}:80'
        environment:
            WWWUSER: '${WWWUSER}'
            LaraVEL_SAIL: 1
        volumes:
            - '.:/var/www/html'
        networks:
            - sail
        depends_on:
            - MysqL
            - redis
    MysqL:
        image: 'MysqL:8.0'
        ports:
            - '${FORWARD_DB_PORT:-3306}:3306'
        environment:
            MysqL_ROOT_PASSWORD: '${DB_PASSWORD}'
            MysqL_DATABASE: '${DB_DATABASE}'
            MysqL_USER: '${DB_USERNAME}'
            MysqL_PASSWORD: '${DB_PASSWORD}'
            MysqL_ALLOW_EMPTY_PASSWORD: 'yes'
        volumes:
            - 'sailMysqL:/var/lib/MysqL'
        networks:
            - sail
    redis:
        image: 'redis:alpine'
        ports:
            - '${FORWARD_REdis_PORT:-6379}:6379'
        volumes:
            - 'sailredis:/data'
        networks:
            - sail
    mailhog:
        image: 'mailhog/mailhog:latest'
        ports:
            - 1025:1025
            - 8025:8025
        networks:
            - sail
networks:
    sail:
        driver: bridge
volumes:
    sailMysqL:
        driver: local
    sailredis:
        driver: local

解决方法

案例 - 重用已创建的 Docker 卷

如果使用 sail down 停止 Sail，数据卷将保留在 Docker 主机上而不会被删除。

当 Sail 停止时，使用 sail down -v 删除现有的 Docker 卷数据。

第一个sail up，DB_DATABASE=forge

首次启动 Sail 时，会在 Docker 主机上创建一个卷。

grep DB_DATABASE .env
DB_DATABASE=forge

docker volume ls
DRIVER    VOLUME NAME

sail up -d
Creating network "test_sail" with driver "bridge"
Creating volume "test_sailmysql" with local driver
Creating volume "test_sailredis" with local driver
Creating test_mailhog_1 ... done
Creating test_mysql_1   ... done
Creating test_redis_1   ... done
Creating test_laravel.test_1 ... done

docker volume ls
DRIVER    VOLUME NAME
local     test_sailmysql
local     test_sailredis

sail mysql
mysql> show databases;
| forge              |

但是，当我退出 Sail 时，Docker 容器被删除，但卷没有被删除。

sail down
Stopping test_laravel.test_1 ... done
Stopping test_mailhog_1      ... done
Stopping test_redis_1        ... done
Stopping test_mysql_1        ... done
Removing test_laravel.test_1 ... done
Removing test_mailhog_1      ... done
Removing test_redis_1        ... done
Removing test_mysql_1        ... done
Removing network test_sail

docker volume ls
DRIVER    VOLUME NAME
local     test_sailmysql
local     test_sailredis

第二个sail up，DB_DATABASE=test

如果你在同一个目录下启动第二个 Sail，已经创建的 Docker 卷将被重用。

grep DB_DATABASE .env
DB_DATABASE=test

sail up -d
Creating network "test_sail" with driver "bridge"
Creating test_mysql_1   ... done
Creating test_redis_1   ... done
Creating test_mailhog_1 ... done
Creating test_laravel.test_1 ... done

docker volume ls
DRIVER    VOLUME NAME
local     test_sailmysql
local     test_sailredis

由于数据存在于test_sailmysql中，即第一次运行时创建的卷，因此不会执行新的数据库创建任务。

sail mysql
  ERROR 1049 (42000): Unknown database 'test'

sail artisan migrate
  Illuminate\Database\QueryException
  SQLSTATE[HY000] [1049] Unknown database 'test' (SQL: select * from information_schema.tables where table_schema = test and table_name = migrations and table_type = 'BASE TABLE')

删除现有卷后启动

sail down -v
...
Removing volume test_sailmysql
Removing volume test_sailredis

sail up -d
...
Creating volume "test_sailmysql" with local driver
Creating volume "test_sailredis" with local driver

sail mysql
mysql> show databases;
| test               |

sail artisan migrate
Migration table created successfully.
Migrating: 2014_10_12_000000_create_users_table
Migrated:  2014_10_12_000000_create_users_table (214.30ms)
Migrating: 2014_10_12_100000_create_password_resets_table
Migrated:  2014_10_12_100000_create_password_resets_table (99.56ms)
Migrating: 2019_08_19_000000_create_failed_jobs_table
Migrated:  2019_08_19_000000_create_failed_jobs_table (151.61ms)

sail down 选项

sail down -h

    -v,--volumes           Remove named volumes declared in the `volumes`
                            section of the Compose file and anonymous volumes
                            attached to containers.

,

如果你已经在PATH环境变量中添加了sail命令...

如果在.env文件所在的项目目录下执行sail命令，MySQL容器执行时会创建名为DB_DATABASE的数据库。

https://github.com/laravel/sail/blob/1.x/bin/sail#L66

    # Source the ".env" file so Laravel's environment variables are available...
    if [ -f ./.env ]; then
        source ./.env
    fi

---

测试 - https://laravel.build/example-app

我尝试了以下示例项目。

你的第一个 Laravel 项目 - https://laravel.com/docs/8.x/installation#getting-started-on-windows

curl -s https://laravel.build/example-app | bash

cd example-app

./vendor/bin/sail up

配置 Bash 别名 - https://laravel.com/docs/8.x/sail#configuring-a-bash-alias

vi ~/.bashrc

alias sail='bash vendor/bin/sail'

我在守护进程模式下运行并检查了 docker 进程。

sail up -d
sail ps
           Name                         Command               State                       Ports
--------------------------------------------------------------------------------------------------------------------
example-app_laravel.test_1   start-container                  Up      0.0.0.0:80->80/tcp,8000/tcp
example-app_mailhog_1        MailHog                          Up      0.0.0.0:1025->1025/tcp,0.0.0.0:8025->8025/tcp
example-app_mysql_1          docker-entrypoint.sh mysqld      Up      0.0.0.0:3306->3306/tcp,33060/tcp
example-app_redis_1          docker-entrypoint.sh redis ...   Up      0.0.0.0:6379->6379/tcp

我的.env

DB_DATABASE=example_app

MySQL 数据库列表。

sail mysql

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| example_app        |
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.00 sec)

数据库迁移也成功了。

sail artisan migrate

Migration table created successfully.
Migrating: 2014_10_12_000000_create_users_table
Migrated:  2014_10_12_000000_create_users_table (166.17ms)
Migrating: 2014_10_12_100000_create_password_resets_table
Migrated:  2014_10_12_100000_create_password_resets_table (99.25ms)
Migrating: 2019_08_19_000000_create_failed_jobs_table
Migrated:  2019_08_19_000000_create_failed_jobs_table (128.87ms)

测试-laravel 新项目

Laravel Sail - https://laravel.com/docs/8.x/sail

laravel new test

cd test

composer require laravel/sail --dev

php artisan sail:install

sail up -d

数据库名称跟在项目名称之后。

grep DB_DATABASE .env
DB_DATABASE=test

数据库迁移也成功了。

sail artisan migrate

Migration table created successfully.
Migrating: 2014_10_12_000000_create_users_table
Migrated:  2014_10_12_000000_create_users_table (162.35ms)
Migrating: 2014_10_12_100000_create_password_resets_table
Migrated:  2014_10_12_100000_create_password_resets_table (96.68ms)
Migrating: 2019_08_19_000000_create_failed_jobs_table
Migrated:  2019_08_19_000000_create_failed_jobs_table (89.60ms)