php - 从 Docker 容器使用本地主机连接到 MariaDB

Question

首先我确实阅读了这些链接

• Connect to Docker MySQL container from localhost?
• Connect to Mysql on localhost from docker container
• From inside of a Docker container, how do I connect to the localhost of the machine?

但是作为docker的初学者。它对我没有帮助。

你需要知道的:

• 是的，我需要本地主机。我正在开发一个可以交互的应用程序直接用数据库。它创建/删除用户权限和允许某些用户以有限的权限从远程访问使用权。初始化后，该应用程序将放弃对 root 和 forge 用户的默认远程访问权限，并授予他们对本地主机的完全权限。
• 我正在使用由 https://phpdocker.io 生成的 docker-compose.yml
• Ubuntu 18.10
• Docker 版本 18.09.3，构建 774a1f4
• docker-compose 版本 1.21.0，构建未知
• 我仅将 docker 用于开发目的。在生产中我使用 forge

./docker-compose.yml

###############################################################################
#                          Generated on phpdocker.io                          #
###############################################################################
version: "3.1"

services:

    mailhog:
      image: mailhog/mailhog:latest
      container_name: myapp-mailhog
      ports:
        - "8081:8025"

    redis:
      image: redis:alpine
      container_name: myapp-redis

    mariadb:
      image: mariadb:10.4
      container_name: myapp-mariadb
      working_dir: /application
      volumes:
        - .:/application
      environment:
        - MYSQL_ROOT_PASSWORD=root
        - MYSQL_DATABASE=myapp
        - MYSQL_USER=forge
        - MYSQL_PASSWORD=forge
      ports:
        - "8083:3306"

    webserver:
      image: nginx:alpine
      container_name: myapp-webserver
      working_dir: /application
      volumes:
          - .:/application
          - ./phpdocker/nginx/nginx.conf:/etc/nginx/conf.d/default.conf
      ports:
       - "8080:80"

    php-fpm:
      build: phpdocker/php-fpm
      container_name: myapp-php-fpm
      working_dir: /application
      volumes:
        - .:/application
        - ./phpdocker/php-fpm/php-ini-overrides.ini:/etc/php/7.3/fpm/conf.d/99-overrides.ini

./phpdocker/nginx/nginx.conf

server {
    listen 80 default;

    client_max_body_size 108M;

    access_log /var/log/nginx/application.access.log;


    root /application/public;
    index index.php;

    if (!-e $request_filename) {
        rewrite ^.*$ /index.php last;
    }

    location ~ \.php$ {
        fastcgi_pass php-fpm:9000;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PHP_VALUE "error_log=/var/log/nginx/application_php_errors.log";
        fastcgi_buffers 16 16k;
        fastcgi_buffer_size 32k;
        include fastcgi_params;
    }

}

./phpdocker/php-fpm/Dockerfile (稍微修改以添加 mysql_client 并且不在第二个 RUN 命令中安装 git)

FROM phpdockerio/php73-fpm:latest
WORKDIR "/application"

# Fix debconf warnings upon build
ARG DEBIAN_FRONTEND=noninteractive

# Install selected extensions and other stuff
RUN apt-get update \
    && apt-get -y --no-install-recommends install  \
        php7.3-mysql php-redis php7.3-sqlite3 php-xdebug php7.3-bcmath php7.3-bz2 php7.3-gd \
        git \
        mysql-client \
    && apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*

./php-ini-overrides.ini

upload_max_filesize = 100M
post_max_size = 108M

我尝试使用 network_mode: host 但它使网络服务器停止并返回 Exit 1

Answer 1

好的，但请记住，mysql/mariadb 中的 localhost 意味着通过本地 unix 套接字进行访问。有多种方法可以在容器之间共享这些内容。

看看这里 Connection between docker containers via UNIX sockets