필수 패키지 설치
sudo apt update
sudo apt install -y ca-certificates curl gnupg
Docker 공식 GPG 키 추가
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL <https://download.docker.com/linux/ubuntu/gpg> | sudo tee /etc/apt/keyrings/docker.asc > /dev/null
sudo chmod a+r /etc/apt/keyrings/docker.asc
Docker 리포지토리 추가
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] <https://download.docker.com/linux/ubuntu> $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt update
Docker 엔진, CLI, 컨테이너 런타임 설치
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
Docker 서비스 시작 및 활성화
sudo systemctl enable --now docker