第一部分：安裝
1.查看系統(tǒng)版本：cat /etc/redhat-release
2.安裝：yum install docker
3.檢查是否成功：docker version
4.啟動docker：
systemctl start docker.service
systemctl enable docker.service
5.查看docker信息：docker info
第二部分：使用
1.檢索名字為tutorial的鏡像：docker search tutorial
2.下載鏡像：docker install learn/tutorial
3.查看下載的鏡像：docker images
4.在docker中運行hello world：docker run learn/tutorial echo "hello world"
說明：*docker run命令有兩個參數(shù)，一個是鏡像名悔橄，一個是要在鏡像中運行的命令 *
5.在docker中安裝wget命令：docker run learn/tutorial apt-get install -y wget
6.查看容器Id：docker ps -l
[root@host-10-10-10-12 ~]# docker ps -l
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1ced4f9a977b learn/tutorial "apt-get install -y w" About a minute ago Exited (0) 58 seconds ago tender_murdock
7.保存對容器的修改并命名為learn/wget：docker commit 1ced4f9a977b learn/wget
[root@host-10-10-10-12 ~]# docker ps -l
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1ced4f9a977b learn/tutorial "apt-get install -y w" About a minute ago Exited (0) 58 seconds ago tender_murdock
8.檢查運行中的鏡像：docker inspect a7953f439817
