参考链接:https://docs.docker.com/engine/install/ubuntu/#install-using-the-repository
# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc
Add the repository to Apt sources:
==================================
`echo `
`
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] 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`