嗨,我正在尝试学习 Docker。
作为起点,我遵循了 DigitalOcean 的 Laravel 设置教程 here .
我已经成功启动了所有容器,甚至完成了 Laravel 应用程序的构建。现在我想设置第二个数据库进行测试。
我复制了docker-compose
的db
部分的设置,并更改了容器名称和端口。
所有容器设置都很好,但每当我尝试在任一数据库容器中运行 docker exec 时,都会收到 2002 错误,当我只运行 1 个数据库容器时,我没有遇到该错误:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
Dockerfile:
FROM php:7.2-fpm
# Copy composer.lock and composer.json
COPY composer.lock composer.json /var/www/
# Set working directory
WORKDIR /var/www
# Install dependencies
RUN apt-get update && apt-get install -y \
build-essential \
mysql-client \
libpng-dev \
libjpeg62-turbo-dev \
libfreetype6-dev \
locales \
zip \
jpegoptim optipng pngquant gifsicle \
vim \
unzip \
git \
curl
# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*
# Install extensions
RUN docker-php-ext-install pdo_mysql mbstring zip exif pcntl
RUN docker-php-ext-configure gd --with-gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ --with-png-dir=/usr/include/
RUN docker-php-ext-install gd
# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
# Add user for laravel application
RUN groupadd -g 1000 www
RUN useradd -u 1000 -ms /bin/bash -g www www
# Copy existing application directory contents
COPY . /var/www
# Copy existing application directory permissions
COPY --chown=www:www . /var/www
# Change current user to www
USER www
# Expose port 9000 and start php-fpm server
EXPOSE 9000
CMD ["php-fpm"]
docker-compose.yml:
version: '3'
services:
#PHP Service
app:
build:
context: .
dockerfile: Dockerfile
image: digitalocean.com/php
container_name: todo_app
restart: unless-stopped
tty: true
environment:
SERVICE_NAME: app
SERVICE_TAGS: dev
working_dir: /var/www
volumes:
- ./:/var/www
- ./php/local.ini:/usr/local/etc/php/conf.d/local.ini
networks:
- app-network
#Nginx Service
web:
image: nginx:alpine
container_name: todo_web
restart: unless-stopped
tty: true
ports:
- "80:80"
- "443:443"
volumes:
- ./:/var/www
- ./nginx/conf.d/:/etc/nginx/conf.d/
networks:
- app-network
#MySQL Service
db:
image: mysql:5.7.22
container_name: todo_db
restart: unless-stopped
tty: true
ports:
- "3306:3306"
environment:
MYSQL_DATABASE: todo
MYSQL_ROOT_PASSWORD: ent3r1n
SERVICE_TAGS: dev
SERVICE_NAME: mysql
volumes:
- dbdata:/var/lib/mysql/
- ./mysql/my.cnf:/etc/mysql/my.cnf
networks:
- app-network
db_test:
image: mysql:5.7.22
container_name: todo_db_test
restart: unless-stopped
tty: true
ports:
- "3307:3306"
environment:
MYSQL_DATABASE: todo
MYSQL_ROOT_PASSWORD: ent3r1n
SERVICE_TAGS: dev
SERVICE_NAME: mysql
volumes:
- dbdata:/var/lib/mysql/
- ./mysql/my.cnf:/etc/mysql/my.cnf
networks:
- app-network
#Docker Networks
networks:
app-network:
driver: bridge
#Volumes
volumes:
dbdata:
driver: local
docker ps 的输出:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f5ccebc57f9d digitalocean.com/php "docker-php-entrypoi…" 15 seconds ago Up 13 seconds 9000/tcp todo_app
7cc53434d7d7 nginx:alpine "nginx -g 'daemon of…" 15 seconds ago Up 13 seconds 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp todo_web
7aab5318e7af mysql:5.7.22 "docker-entrypoint.s…" 15 seconds ago Up 13 seconds 0.0.0.0:3307->3306/tcp todo_db_test
5b72306f63a4 mysql:5.7.22 "docker-entrypoint.s…" 15 seconds ago Up 13 seconds 0.0.0.0:3306->3306/tcp todo_db
最佳答案
我曾经遇到过这样的问题,因为您使用的图像:image: mysql:5.7.22
您应该使用:image: mysql/mysql-server:5.7
。
希望对您有帮助。
关于mysql - Docker:尝试设置 2 个数据库容器时的 MySQL[2002],我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55595516/