1. Docker 설치#

# 필요한 패키지 설치
sudo apt update
sudo apt install ca-certificates curl gnupg

# Docker의 공식 GPG 키 추가
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

# Docker 리포지토리 설정
echo "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Docker 설치
sudo apt update
sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

2. Docker Repo 별도 지정#

sudo mkdir -p /simple/docker

sudo vi /etc/docker/daemon.json

{
  "data-root": "/simple/docker"
}

# Docker 재시작
sudo systemctl restart docker

# 설정 확인
sudo docker info | grep "Docker Root Dir"

3. sudo 없이 docker 명령 사용하기#

sudo usermod -aG docker $USER

# 재로그인이 필요