도커 스크립트 다운로드

pi@raspi:~ $ curl -fsSL get.docker.com -o get-docker.sh
pi@raspi:~ $ curl -fsSL get.docker.com -o test-docker.sh

도커 설치(test-docker.sh)

pi@raspi:~ $ bash test-docker.sh
# Executing docker install script, commit: 26ff363bcf3b3f5a00498ac43694bf1c7d9ce16c
+ sudo -E sh -c 'apt-get update -qq >/dev/null'
+ sudo -E sh -c 'DEBIAN_FRONTEND=noninteractive apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null'
+ sudo -E sh -c 'curl -fsSL "https://download.docker.com/linux/raspbian/gpg" | apt-key add -qq - >/dev/null'
Warning: apt-key output should not be parsed (stdout is not a terminal)
+ sudo -E sh -c 'echo "deb [arch=armhf] https://download.docker.com/linux/raspbian buster stable" > /etc/apt/sources.list.d/docker.list'
+ sudo -E sh -c 'apt-get update -qq >/dev/null'
+ '[' -n '' ']'
+ sudo -E sh -c 'apt-get install -y -qq --no-install-recommends docker-ce >/dev/null'
+ sudo -E sh -c 'docker version'
Client: Docker Engine - Community
 Version:           19.03.12
 API version:       1.40
 Go version:        go1.13.10
 Git commit:        48a6621
 Built:             Mon Jun 22 15:53:41 2020
 OS/Arch:           linux/arm
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          19.03.12
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.13.10
  Git commit:       48a6621
  Built:            Mon Jun 22 15:47:34 2020
  OS/Arch:          linux/arm
  Experimental:     false
 containerd:
  Version:          1.2.13
  GitCommit:        7ad184331fa3e55e52b890ea95e65ba581ae3429
 runc:
  Version:          1.0.0-rc10
  GitCommit:        dc9208a3303feef5b3839f4323d9beb36df0a9dd
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683
If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:

  sudo usermod -aG docker pi

Remember that you will have to log out and back in for this to take effect!

WARNING: Adding a user to the "docker" group will grant the ability to run
         containers which can be used to obtain root privileges on the
         docker host.
         Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
         for more information.

구동확인

pi@raspi:~ $ ps auwx|grep docker
root     15755  3.4  1.3 971312 54552 ?        Ssl  11:58   0:00 /usr/bin/docker d -H fd:// --containerd=/run/containerd/containerd.sock
pi       16826  0.0  0.0   4168   480 pts/0    S+   11:58   0:00 grep --color=auto docker

일반 사용자 계정 도커 그룹에 넣기

pi@raspi:~ $ sudo usermod -aG docker pi

hello-world 도커 실행

pi@raspi:~ $ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
4ee5c797bcd7: Pull complete
Digest: sha256:d58e752213a51785838f9eed2b7a498ffa1cb3aa7f946dda11af39286c3db9a9
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (arm32v7)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/