架构说明：
使用nginx+tomcat实现动态/静态（资源请求）分离和负载均衡。
参考文档：
https://www.runoob.com/docker/docker-tutorial.html
配置docker镜像仓库：/etc/docker/daemon.json
{ "registry-mirrors": ["https://registry.docker-cn.com", "http://hub-mirror.c.163.com", "https://pee6w651.mirror.aliyuncs.com"] }
下载nginx和tomcat的镜像：
docker pull nginx
docker pull tomcat
创建nginx和tomcat本地目录，稍后将挂载到docker容器上：
mkdir -p ~/nginx/www ~/nginx/conf/ ~/nginx/logs mkdir -p ~/tomcat/webapps/ROOT ~/tomcat/conf ~/tomcat/logs
在tomcat/webapps/ROOT中创建index.html：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>docker deployment</title> </head> <body> <h1>hello, world</h1> <img src="/static/image/lichmama.png"> </body> </html>
启动tomcat：
docker run -d --name tomcat1 -v ~/tomcat/webapps:/usr/local/tomcat/webapps tomcat
docker run -d --name tomcat2 -v ~/tomcat/webapps:/usr/local/tomcat/webapps tomcat
获取tomcat容器IP，获取到的IP将配置到nginx的配置文件中：
docker inspect tomcat1|grep "IPAddress" docker inspect tomcat2|grep "IPAddress"
在nginx/conf增加配置文件nginx.conf：
user nginx; worker_processes 1; error_log /var/log/nginx/error.log warn; 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" "$upstream_addr"'; access_log /var/log/nginx/access.log main; sendfile on; #tcp_nopush on; keepalive_timeout 65; #gzip on; upstream tomcat { server 172.17.0.2:8080; server 172.17.0.4:8080; } server { listen 80; server_name localhost; location / { proxy_pass http://tomcat; proxy_redirect off; index index.html index.htm; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Real-Port $remote_port; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } location /static/ { alias /usr/share/nginx/html/; } } include /etc/nginx/conf.d/*.conf; }
启动nginx：
docker run -d -p 80:80 --name nginx -v ~/nginx/www:/usr/share/nginx/html -v ~/nginx/conf/nginx.conf:/etc/nginx/nginx.conf -v ~/nginx/logs:/var/log/nginx nginx
使用docker ps查看docker进程：
访问http://server_ip/index.html：
OK，部署成功。