公式チュートリアルでWSL2環境にDockerを入れる際にハマったところ

公式チュートリアルをコピペしたけどハマったところまとめ

sudo apt-get install docker-ce docker-ce-cli containerd.io

Package docker-ce is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  docker-ce-cli:amd64

E: Package 'docker-ce' has no installation candidate
E: Unable to locate package docker-ce-cli
E: Unable to locate package containerd.io
E: Couldn't find any package by glob 'containerd.io'
E: Couldn't find any package by regex 'containerd.io'

改善

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

を

echo \
  "deb [arch=arm64] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
にする

sudo docker run hello-worldでハマり

改善

①sudo groupadd docker

②sudo usermod -aG docker Ubuntuのユーザ名

③Ubuntu再起動

④sudo service docker start