Docker : Install2015/01/03 |
Install Docker which is the Linux Container Tool.
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[1] | Install Docker. |
[root@dlp ~]#
[root@dlp ~]# yum -y install docker-io
systemctl start docker [root@dlp ~]# systemctl enable docker |
[2] | Download the official image and create a Container and 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 # 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 ~]#
bash-4.3# docker run -i -t fedora /bin/bash bash-4.3# # Container's console uname -a Linux fa91147288b4 3.17.6-300.fc21.x86_64 #1 SMP Mon Dec 8 22:29:32 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux bash-4.3# exit exit [root@dlp ~]# # just backed |
[4] | If 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 bash-4.3# [root@dlp ~]# # Ctrl+p, Ctrl+q docker ps # display docker process CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e9ecb988dabf fedora:21 "/bin/bash" 18 seconds ago Up 17 seconds trusting_goodal # connect to container's session [root@dlp ~]# docker attach e9ecb988dabf bash-4.3# # connected # shutdown container's process from Host's console [root@dlp ~]# docker kill e9ecb988dabf [root@dlp ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES |
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