Install docker

install_docker.sh

#!/bin/bash
## Recommend to mount a separate volume on /var/lib/docker to store all docker related stuff
sudo apt-get install -y \
      ca-certificates \
      curl \
      gnupg \
      lsb-release
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo \
  "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
sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
sudo docker run hello-world
sudo usermod -aG docker $USER # relogin after this step