使用 docker-compose 构建容器时出现“php_network_getaddresses:getaddrinfo failed:Temporary failure in name reso

Posted 2023-03-14

【中文标题】使用 docker-compose 构建容器时出现“php_network_getaddresses:getaddrinfo failed:Temporary failure in name resolution”错误[重复]

【英文标题】：Getting "php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution" error when using docker-compose to build containers [duplicate]

【发布时间】：2019-10-16 08:51:02

【问题描述】：

当我运行php artisan migrate 时，似乎我的 php 容器无法解析数据库容器的主机“db”，我想知道我是否在配置中设置了错误。

尝试弄乱 dockerfile 上的 depends_on: 和 links: 选项。

docker-compose.yml

version: '3.3'

services:
  db:
    container_name: tasks-db
    image: mariadb:latest
    volumes:
      - dbdata:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=password
      - MYSQL_DATABASE=tasks
      - MYSQL_USER=root
      - MYSQL_PASSWORD=password
    restart: always

  webserver:
    container_name: tasks-webserver
    image: nginx:latest
    ports:
      - "8080:80"
      - "443:443"
    volumes:
      - .:/app
      - ./provision/nginx/:/etc/nginx/conf.d/
    depends_on:
      - php
    restart: always

  php:
    container_name: tasks-php
    build:
      context: .
      dockerfile: provision/php.docker
    depends_on:
      - db
    restart: always
    env_file:
      - .env

volumes:
  dbdata:
    driver: local

供应/db.docker

FROM php:7.3-fpm

# Add dependencies
RUN apt-get update -y && apt-get install -y openssl libpng-dev libxml2-dev curl cron git libzip-dev zip unzip

# Install php extensions
RUN docker-php-ext-install pdo mbstring gd xml pdo_mysql zip

# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

COPY . /app/

WORKDIR /app

RUN chown -R $USER:www-data /app/storage
RUN chown -R $USER:www-data /app/bootstrap/cache

RUN chmod -R 775 /app/storage
RUN chmod -R 775 /app/bootstrap/cache

# Install composer dependencies
RUN composer install

RUN php artisan optimize

#RUN php artisan migrate --seed

RUN crontab -l |  cat; echo "* * * * * php /app/artisan schedule:run >> /dev/null 2>&1";  | crontab -

STOPSIGNAL SIGTERM

CMD ["php-fpm"]

db.docker

FROM mariadb:latest

CMD ["mysqld", "--user=mysql"]

我收到此错误：

Step 13/16 : RUN php artisan migrate --no-interaction --seed
 ---> Running in ccbfcde9324d

   Illuminate\Database\QueryException  : SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution (SQL: select * from information_schema.tables where table_schema = tasks and table_name = migrations and table_type = 'BASE TABLE')

  at /app/vendor/laravel/framework/src/Illuminate/Database/Connection.php:664
    660|         // If an exception occurs when attempting to run a query, we'll format the error
    661|         // message to include the bindings with SQL, which will make this exception a
    662|         // lot more helpful to the developer instead of just the database's errors.
    663|         catch (Exception $e) 
  > 664|             throw new QueryException(
    665|                 $query, $this->prepareBindings($bindings), $e
    666|             );
    667|         
    668|

  Exception trace:

  1   PDOException::("PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution")
      /app/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:70

  2   PDO::__construct("mysql:host=db;port=3306;dbname=tasks", "root", "password", [])
      /app/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:70

  Please use the argument -v to see more details.
ERROR: Service 'php' failed to build: The command '/bin/sh -c php artisan migrate --no-interaction --seed' returned a non-zero code: 1

【问题讨论】：

您无法从 Dockerfile 中访问其他服务，也无法在映像构建时运行数据库迁移。 （如果您销毁并重新创建数据库，但不重建图像怎么办？）链接的问题有一个基于入口点的解决方案，应该可以工作。

【参考方案1】：

你不见了

  links:
    - db

在您的 php 配置中。

正如@David Maze 所提到的，在 Dockerfile 中运行 php artisan migrate 不仅是一种不好的做法，而且它不会起作用。

您应该仅在容器启动时运行该命令。想一想，php artisan migrate 会修改另一个容器的数据，这并不能保证它在构建镜像时正在运行。这违反了容器理念。