Tips/Lin/Ubu/Sv/Docker の履歴(No.1)

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- 1 (2022-08-01 (月) 06:06:03)

Docker めも on Ubuntu Server 22.04 LTS†

現時点で暫定で Ubuntu Server にと考えてるけど詳細未定
- 現時点でわかってること： apt install Docker はするなということ (2015年の古いバージョンが入るため?)
  - ↑ Desktopでの話かも。Server だとほぼ最新がはいるよーにみえましたが、まあとりあえず最新をいれる方法をメモります。

事前準備†

前提パッケージの導入†

$ sudo apt update
$ sudo apt install apt-transport-https ca-certificates curl gnupg lsb-release -y

↑

Docker 公式の GnuPG鍵追加＋リポジトリ追加†

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
(GPGキー追加)
$ echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
(リポジトリ追加)
$ cat /etc/apt/sources.list.d/docker.list 
deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu   jammy stable
(Ubuntu 22.04 のjammy というのと、安定版 stable の記述確認)

$ sudo apt update
(リポジトリを更新する)

↑

Docker のインストール†

$ sudo apt install docker-ce docker-ce-cli containerd.io docker-compose-plugin -y

事前準備がすめばこれだけです。バージョン確認はsudoつけて。

$ sudo docker version
Client: Docker Engine - Community
 Version:           20.10.17
 API version:       1.41
 Go version:        go1.17.11
 Git commit:        100c701
 Built:             Mon Jun  6 23:02:46 2022
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.17
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.17.11
  Git commit:       a89b842
  Built:            Mon Jun  6 23:00:51 2022
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.6
  GitCommit:        10c12954828e7c7c9b6e0ea9b0c02b01407d3ae1
 runc:
  Version:          1.1.2
  GitCommit:        v1.1.2-0-ga916309
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
$
(2022/08/01現在の最新がはいったことが確認とれます)

↑

動作確認†

$ sudo docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete
Digest: sha256:53f1bbee2f52c39e41682ee1d388285290c5c8a76cc92b42687eecf38e0af3f0 
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.
    (amd64)
 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/

$

↑

一般ユーザーにDockerを使わせる†

$ getent group | grep docker
これでユーザーがまだいないことを確認。

$ sudo usermod -aG docker arqtan
(arqtan ユーザーをdockerグループに追加)

$ logout
(リログ)

$ docker run hello-world
(sudo 抜きで実行、同じはろーわーるどが出たら成功)