Dokcer安装并部署多个nginx

• Docker 安装

  1.查看当前内核版本，要求3.10及以上版本

  uname -r
  

  2.安装相关的包

  yum install -y yum-utils device-mapper-persistent-data lvm2 lxc libcgroup
  

  3.安装docker

  yum install docker docker-* -y
  

  4.关闭selinux并重启

  sed -i '/SELINUX/s/enforcing/disabled/g' /etc/selinux/config && reboot
  

  5.启动docker

  systemctl start docker 
  

  6.使用脚本一键安装

  curl -fsSL https://get.docker.com -o get-docker.sh
  sh get-docker.sh
  

• 部署多台nginx服务器

  1.获取Nginx镜像

  docker pull nginx
  

  2.创建容器，并将容器内的80端口分别映射到宿主机的8080|8088端口，将容器的nginx配置文件挂载到本地，方便绕过写时复制，提高容器读写效率

  docker run -it --name nginx1 -h nginx1 -v /usr/local/etc/nginx1/html/:/usr/share/nginx/html -p 8080:80 nginx /bin/bash
  docker run -it --name nginx2 -h nginx2 -v /usr/local/etc/nginx2/html/:/usr/share/nginx/html -p 8088:80 nginx /bin/bash
  

  
  3.开启刚刚创建的容器

  docker start $(docker ps -qa)
  

  
  4.将容器内的nginx放置在后台运行

  docker exec -it nginx1 nginx &
  docker exec -it nginx2 nginx &
  

  5.修改配置文件

  cd /usr/local/etc/nginx1/html/
  echo "<h1>This is Nginx1</h1>" > index.html 
  cd /usr/local/etc/nginx2/html/
  echo "<h1>This is Nginx2</h1>" > index.html 
  

  6.浏览器访问