우분투에 도커 설치

# apt autoremove

# apt-get remove docker docker-engine docker.io containerd runc

# apt-get install apt-transport-https ca-certificates curl gnupg lsb-release

# curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

# echo "deb [arch=arm64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list 

# apt update

# apt install docker-ce

# docker run hello-world