Docker : Install2016/06/17

	Install Docker which is the Operating System-Level Virtualization Tool, which automates the deployment of applications inside Containers.
[1]	Install Docker.

root@dlp:~#

apt-get -y install docker.io

[2]	Download the official image and create a Container and output the words "Welcome to the Docker World" inside the Container.

# download official ubuntu image

root@dlp:~#

docker pull ubuntu

# run echo inside Container

root@dlp:~#

docker run ubuntu /bin/echo "Welcome to the Docker World!"

Welcome to the Docker World!

[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 finishes.

root@dlp:~#

docker run -i -t ubuntu /bin/bash

root@23f4a2724cbe:/#

# Container's console

root@23f4a2724cbe:/#

exit

exit
root@dlp:~#

# back

[4]	If exit from the Container session with keeping container's process, push Ctrl+p, and Ctrl+q key.

root@dlp:~#

docker run -i -t ubuntu /bin/bash

root@8611c590f4fd:/# root@dlp:~#

# Ctrl+p, Ctrl+q

# show docker process

root@dlp:~#

docker ps

CONTAINER ID        IMAGE       COMMAND       CREATED             STATUS           PORTS  NAMES
8611c590f4fd        ubuntu      "/bin/bash"   19 seconds ago      Up 18 seconds           elegant_einstein

# connect to container's session

root@dlp:~#

docker attach 8611c590f4fd

root@8611c590f4fd:/#

# shutdown container's process from Host's console

root@dlp:~#

docker kill 8611c590f4fd

8611c590f4fd
root@dlp:~#

docker ps

CONTAINER ID     IMAGE           COMMAND      CREATED          STATUS          PORTS     NAMES

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