Docker 安裝流程

Add default user to sudo group :

su
apt -y install sudo
usermod -a -G sudo "username"
logout
id

Docker Install :

sudo apt-get install -y \
     apt-transport-https \
     ca-certificates \
     curl \
     gnupg2 \
     software-properties-common
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/debian \
     $(lsb_release -cs) \
stable"
sudo apt update -y
sudo apt install -y docker-ce
sudo usermod -a -G docker "username"