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Raspberry PiにDockerをインストール

Last updated at Posted at 2020-11-08

概要

動作確認機種

  • Raspberry Pi 3 Model B+
  • Raspberry Pi Zero W

インストール

※参考:https://docs.docker.com/engine/install/debian/

  1. パッケージを最新化します。

    sudo apt update
    
  2. Dockerインストールスクリプトをダウンロードし、実行します。

    curl -fsSL https://get.docker.com -o get-docker.sh
    sudo sh get-docker.sh
    
  3. piユーザをdockerグループに参加させます。

    sudo usermod -aG docker pi
    
  4. piユーザでシェルにログインしている場合は、ログアウトしてから、ログインし直します。

    logout
    

動作確認

※参考:https://docs.docker.com/engine/install/linux-postinstall/

  1. 次のコマンドを実行し、動作確認します。

    docker -v
    
    Docker version 19.03.13, build 4484c46
    
  2. 次のコマンドを実行し、hello-worldしてみます。

    docker run hello-world
    
    Unable to find image 'hello-world:latest' locally
    latest: Pulling from library/hello-world
    4ee5c797bcd7: Pull complete 
    Digest: sha256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    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/
    

自動起動

  1. 問題なければ、Raspbian OS起動時にdockerを自動起動するように設定します。

    sudo systemctl enable docker
    
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