Centos 7 快速安装 Docker

安装 Docker

[root@localhost~]# yum install docker

启动 docker 服务

[root@localhost~]# systemctl start docker.service
[root@localhost~]# systemctl enable docker.service

安装 centos 镜像

[root@localhost~]# docker pull centos

Using default tag: latest
Trying to pull repository docker.io/library/centos ...

latest: Pulling from docker.io/library/centos

6bbedd9b76a4: Downloading 2.531 MB/49.87 MB

fc19d60a83f1: Download complete

de413bb911fd: Download complete

2879a7ad3144: Download complete

668604fde02e: Download complete

668604fde02e: Pulling fs layer*

检查 centos 镜像安装状态

[root@localhost~]# docker images centos

REPOSITORY          TAG                IMAGE ID            CREATED            SIZE

docker.io/centos    latest              980e0e4c79ec        7 weeks ago         196.7 MB

运行一个新的容器
[root@localhost~]# docker  run -i -t centos /bin/bash
[root@bd1a482d44f5 /]#

参数解释
-i, --interactive               Keep STDIN open even if not attached

-t, --tty                            Allocate a pseudo-TTY

PS：“[root@bd1a482d44f5 /]#” 这行出现证明已进入容器

退出容器

[root@localhost~]# exit

exit

查看运行的容器

[root@localhost~]# docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
48a415dde98a        centos              "/bin/bash"         2 hours ago         Up 2 hours                              nauseous_ardinghelli

查看全部容器列表

[root@localhost~]# docker ps -a

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
bd7d9471fff8        ubuntu              "/bin/bash"         7 minutes ago       Exited (0) 2 minutes ago                       thirsty_stallman
48a415dde98a        centos              "/bin/bash"         3 hours ago         Up 2 hours                                     nauseous_ardinghelli

启动，停止，重启容器

[root@localhost~]# docker start thirsty_stallman    //启动名字为thirsty_stallman的容器
[root@localhost~]# docker stop thirsty_stallman        //停止名字为thirsty_stallman的容器
[root@localhost~]# docker restart thirsty_stallman    //重启名字为thirsty_stallman的容器

重命名容器的名字

[root@localhost~]# docker rename nauseous_ardinghelli controller

/将容器名字为nauseous_ardinghelli更改成controller

进入与容器的交互模式

[root@localhost~]# docker attach nauseous_ardinghelli

[root@48a415dde98a ~]#