# 基于ubuntu的官方apt安装方式，参考: https://docs.docker.com/engine/install/ubuntu/
# Uninstall old versionssudo apt-get remove docker docker-engine docker.io containerd runc
# Set up the repositorysudo apt-get updatesudo apt-get install \    ca-certificates \    curl \    gnupg \    lsb-release
# Add Docker’s official GPG keysudo mkdir -p /etc/apt/keyringscurl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
# Use the following command to set up the repositoryecho \  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null  # Install a specific version using the version string from the second column, for example, 5:20.10.16~3-0~ubuntu-jammysudo apt-get update$ sudo apt-get install docker-ce=<VERSION_STRING> docker-ce-cli=<VERSION_STRING> containerd.io docker-compose-plugin
# Verify that Docker Engine is installed correctly by running the hello-world imagesudo service docker startsudo docker run hello-world