Docker : Install2023/06/22 |
Install Docker which is the Operating System-Level Virtualization Tool, which automates the deployment of applications inside Containers.
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[1] | Install Docker. |
root@dlp:~#
root@dlp:~# apt -y install docker.io docker version Client: Version: 20.10.24+dfsg1 API version: 1.41 Go version: go1.19.8 Git commit: 297e128 Built: Thu May 18 08:38:34 2023 OS/Arch: linux/amd64 Context: default Experimental: true Server: Engine: Version: 20.10.24+dfsg1 API version: 1.41 (minimum version 1.12) Go version: go1.19.8 Git commit: 5d6db84 Built: Thu May 18 08:38:34 2023 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.6.20~ds1 GitCommit: 1.6.20~ds1-1+b1 runc: Version: 1.1.5+ds1 GitCommit: 1.1.5+ds1-1+b1 docker-init: Version: 0.19.0 GitCommit: |
[2] | Download an official image and create a Container and output the words [Welcome to the Docker World] inside the Container. |
# download the image root@dlp:~# docker pull debian
Using default tag: latest latest: Pulling from library/debian bba7bb10d5ba: Pull complete Digest: sha256:d568e251e460295a8743e9d5ef7de673c5a8f9027db11f4e666e96fb5bed708e Status: Downloaded newer image for debian:latest docker.io/library/debian:latest # run echo inside Container root@dlp:~# docker run debian /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 -it debian /bin/bash root@6ad840b78fba:/# # Container's console root@6ad840b78fba:/# uname -a Linux 6ad840b78fba 6.1.0-9-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.27-1 (2023-05-08) x86_64 GNU/Linux root@6ad840b78fba:/# exit exit root@dlp:~# # come back
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[4] | If exit from the Container session with keeping container's process, push [Ctrl+p] and [Ctrl+q] key. |
root@dlp:~#
docker run -it debian /bin/bash root@072c016558ac:/# root@dlp:~# # Ctrl+p, Ctrl+q
# show docker process root@dlp:~# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 072c016558ac debian "/bin/bash" 25 seconds ago Up 24 seconds gracious_kirch # connect to container's session root@dlp:~# docker attach 072c016558ac root@072c016558ac:/# # shutdown container's process from Host's console root@dlp:~# docker kill 072c016558ac 072c016558ac root@dlp:~# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES |
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