Install Docker

インストール

頻繁に更新されるので公式ページ参照を推奨

# Add Docker's official GPG key:
$ sudo apt-get update
$ sudo apt-get install ca-certificates curl gnupg
$ sudo install -m 0755 -d /etc/apt/keyrings
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
$ sudo chmod a+r /etc/apt/keyrings/docker.gpg

# Add the repository to Apt sources:
$ echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
$ sudo apt-get update

# Install the latest version
$ sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

sudo不要の設定

sudo なしで dockerコマンド実行できるようにする

# Omission of sudo
$ sudo usermod -aG docker $USER

## restart docker demon
$ sudo systemctl restart docker
$ reboot

インストールの確認

# Check version
$ docker --version
Docker version 24.0.7, build xxxxxxx

# Verify that the Docker Engine installation is successful by running the hello-world image
$ sudo docker run --rm hello-world