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Mac に Docker をインストールする手順

まず、GUI アプリケーションのインストールと管理もターミナルから( コマンドで )行うことができるようになる「 Homebrew Cask 」をインストールします。

$ brew cask
==> Tapping homebrew/cask
Cloning into '/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask'...
remote: Enumerating objects: 3654, done.
remote: Counting objects: 100% (3654/3654), done.
remote: Compressing objects: 100% (3645/3645), done.
remote: Total 3654 (delta 23), reused 621 (delta 7), pack-reused 0
Receiving objects: 100% (3654/3654), 1.21 MiB | 2.01 MiB/s, done.
Resolving deltas: 100% (23/23), done.
Tapped 1 command and 3544 casks (3,659 files, 3.9MB).
Homebrew Cask provides a friendly CLI workflow for the administration
of macOS applications distributed as binaries.

Commands:

    --cache    display the file used to cache the Cask
    audit      verifies installability of Casks
    cat        dump raw source of the given Cask to the standard output
    create     creates the given Cask and opens it in an editor
    doctor     checks for configuration issues
    edit       edits the given Cask
    fetch      downloads remote application files to local cache
    home       opens the homepage of the given Cask
    info       displays information about the given Cask
    install    installs the given Cask
    list       with no args, lists installed Casks; given installed Casks, lists staged files
    outdated   list the outdated installed Casks
    reinstall  reinstalls the given Cask
    style      checks Cask style using RuboCop
    uninstall  uninstalls the given Cask
    upgrade    upgrades all outdated casks
    zap        zaps all files associated with the given Cask

See also "man brew-cask"

これで、次のコマンドを実行するだけで、Docker をインストールすることができるようになっているはずです。

$ brew cask install docker

無事、インストールが終わったら、アプリを起動してください。
Docker.png
以下のコマンドで、バージョンを確認することができます。

$ docker -v
Docker version 19.03.2, build 6a30dfc
$ docker-compose -v
docker-compose version 1.24.1, build 4667896b
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