利用 Docker 搭建 WordPress 平台（仅需五分钟即可搭建属于自己的博客网站）

wordpress 是非常著名的博客平台，由php语言编写，对于小白（非php开发人员）来说去从零搭建有些困难，需要了解php以及其相关组件。利用 Docker 容器化技术就可以跳过这一环节，仅仅需要熟悉 Docker 容器以及 Docker 集群相关知识即可。
本文案例利用 Docker Swarm 集群管理将 WordPress、MySQL、Nginx 镜像写入编排文件并编写 Bash 脚本成功搭建 WordPress 博客系统，并且实现数据持久化以及自动化部署。

 yum remove docker docker-common docker-selinux docker-engine  yum install -y yum-utils device-mapper-persistent-data lvm2  yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo  yum list docker-ce --showduplicates | sort -r  yum install docker-ce  systemctl start docker systemctl enable docker  docker version 

 curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose  chmod +x /usr/local/bin/docker-compose  docker-compose --version 

Docker 仓库中的镜像大部分国内拉取速度非常慢 所以这里配置一下国内镜像

 vim /etc/docker/daemon.json  { "registry-mirrors": ["https://docker.mirrors.ustc.edu.cn/"] } 

在本地新建自己的项目目录本文案例代码中的目录均以 /project 作为项目根目录。

域名备案后将 Nginx 相关证书文件放入 /project/nginx/configs/ 目录下

/project/nginx/keys/blog.sunhy.top_bundle.crt /project/nginx/keys/blog.sunhy.top.key 

在 /project 目录新建 /nginx/configs/nginx.conf 文件

user nginx; worker_processes auto; error_log /var/log/nginx/error.log notice; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /var/log/nginx/access.log main; client_max_body_size 10M; sendfile on;  keepalive_timeout 65;   include /etc/nginx/conf.d/*.conf; } 

在 /project 目录新建 /nginx/configs/nginx-blog.conf文件，监听 80 端口 普通访问

server { listen 80; listen [::]:80;  server_name blog.sunhy.top; location / {  proxy_pass http://blog/; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } } 

在 /project 目录新建 /nginx/configs/nginx-blog-ssl.conf文件，监听 443 端口 https 访问

server { listen 443 ssl; server_name blog.sunhy.top; server_tokens off;   ssl_certificate /etc/nginx/conf.d/blog.sunhy.top_bundle.crt; ssl_certificate_key /etc/nginx/conf.d/blog.sunhy.top.key; ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE; ssl_prefer_server_ciphers on; charset utf-8; location / { proxy_pass http://blog/; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } } 

在 /project 目录新建 docker-compose.yaml 文件

version: "1.0" services:  nginx: image: nginx:1.21.0  volumes:  - /project/nginx/log:/var/log/nginx  - /project/nginx/configs/nginx.conf:/etc/nginx/nginx.conf - /project/nginx/configs/nginx-blog.conf:/etc/nginx/conf.d/default.conf - /project/nginx/configs/nginx-blog-ssl.conf:/etc/nginx/conf.d/default-ssl.conf  - /project/nginx/keys/blog.sunhy.top_bundle.crt:/etc/nginx/conf.d/blog.sunhy.top_bundle.crt - /project/nginx/keys/blog.sunhy.top.key:/etc/nginx/conf.d/blog.sunhy.top.key  ports: - 80:80 - 443:443  depends_on: - blog  networks: - frontend  deploy:  replicas: 1  blog-db: image: mysql:5.7 restart: always ports: - 3306:3306 volumes:  - /project/mysql/conf:/etc/mysql/conf.d - /project/mysql/data:/var/lib/mysql environment:  MYSQL_ROOT_PASSWORD: rootPwd  MYSQL_USER: shy MYSQL_PASSWORD: shyPwd  MYSQL_DATABASE: blog networks: - backend  blog: image: wordpress:5.9.3 environment:  WORDPRESS_DB_USER: shy WORDPRESS_DB_PASSWORD: shyPwd  WORDPRESS_DB_HOST: blog-db  WORDPRESS_DB_NAME: blog  WORDPRESS_TABLE_PREFIX: blog_ volumes:  - /project/wordpress:/var/www/html depends_on: - blog-db networks: - frontend - backend  networks:  frontend: backend: 

建议所有代码托管至 github 仓库，以便后续在集群中加入其他容器或服务。本案例提供一个自动化部署 bash 脚本，在 /project 目录下新建 build.sh 文件

#!/bin/bash  cd /project  git pull origin master  docker image prune -a -f  docker pull wordpress:5.9.3 docker pull mysql:5.7 docker pull nginx:1.21.0  docker stack deploy -c /project/docker-compose.yaml sunhy 

 docker swarm init 

 bash /project/build.sh  docker service ls 

访问配置的域名即可进入 WordPress 安装页面，根据提示完成操作登陆后台即可管理博客网站。

本人搭建过程中走了一些弯路，当 docker 容器启动不了或者搭建失败报错时，要根据自己的判断找出出错的容器，用 docker 命令查看容器日志输出，如果容器可以运行则可以利用命令进入容器，在容器中排查错误或尝试修改找到问题解决办法。

 docker attach <容器 ID>  docker exec -it <容器 ID> /bin/bash 

 exit 

 docker ps -a 

 docker stop <容器 ID> 

 docker restart <容器 ID> 

docker rm -f <容器 ID> 

 docker logs -f <容器 ID> 

 docker inspect <容器 ID> 

原文链接：https://blog.csdn.net/qq_38356174/article/details/124861933