|
Docker : Install
2015/06/03 |
|
Install Docker which is the Software Containers Tool.
|
|
| [1] | Install Docker. |
|
[root@dlp ~]#
[root@dlp ~]# dnf -y install docker
systemctl start docker [root@dlp ~]# systemctl enable docker |
| [2] | Download an official image and create a Container and also output the words "Welcome to the Docker World" from the Container. |
|
[root@dlp ~]# docker run fedora /bin/echo "Welcome to the Docker World" Unable to find image 'fedora' locally Pulling repository fedora 00a0c78eeb6d: Download complete Welcome to the Docker World # just executed |
| [3] | Connect to the interactive session of a Container with "i" and "t" option like follows. If exit from the Container session, the process of a Container finishs. |
|
[root@dlp ~]#
[root@2627e14b6f0e /]# docker run -i -t fedora /bin/bash [root@2627e14b6f0e /]# # just connected uname -a Linux 2627e14b6f0e 4.0.4-301.fc22.x86_64 #1 SMP Thu May 21 13:10:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux [root@2627e14b6f0e /]# exit exit [root@dlp ~]# # be back |
| [4] | If you'd like to exit from the Container session with keeping container's process, push Ctrl+p, and Ctrl+q key. |
|
[root@dlp ~]#
[root@dlp ~]# docker run -i -t fedora /bin/bash [root@25eaf056ade4 /]# [root@dlp ~]# # Ctrl+p, Ctrl+q to be back to Host's console docker ps # show docker process CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 25eaf056ade4 fedora:latest "/bin/bash" 44 seconds ago Up 43 seconds clever_payne # connect to container's session [root@dlp ~]# docker attach 25eaf056ade4 [root@25eaf056ade4 /]# # connected # shutdown container's process from Host's console [root@dlp ~]# docker kill 25eaf056ade4 [root@dlp ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES |