Install Docker

  1. Add Docker’s official GPG key:

    apt install --yes ca-certificates curl
install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
    -o /etc/apt/keyrings/docker.asc
chmod a+r /etc/apt/keyrings/docker.asc
ls -l /etc/apt/keyrings/docker.asc

  2. Add the repository to the apt sources:

    arch=$(dpkg --print-architecture)
key=/etc/apt/keyrings/docker.asc
codename=$(. /etc/os-release && echo "$VERSION_CODENAME")
os=$(. /etc/os-release && echo "$ID")
repo_url="https://download.docker.com/linux/$os"

echo \
    "deb [arch=$arch signed-by=$key] $repo_url $codename stable" \
    > /etc/apt/sources.list.d/docker.list
cat /etc/apt/sources.list.d/docker.list

apt update

  3. Install the Docker packages

    apt install --yes \
    docker-ce \
    docker-ce-cli \
    containerd.io \
    docker-buildx-plugin \
    docker-compose-plugin

docker --version
docker compose version

docker run hello-world