Ubuntu 20.04 에서 Docker 설치하기

Docker, containerd 를 설치합니다.

containerd 는 OCI 표준에 부합하게 새로 만든 Container Runtime 입니다.

필수 패키지 설치

sudo apt-get update

sudo apt-get install -y \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

repo 추가

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

echo \
  "deb [arch=$(dpkg --print-architecture) 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 > /dev/null

Docker, containerd 설치

sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

sudo docker version

실행

sudo systemctl enable docker
sudo systemctl start docker

sudo systemctl enable containerd
sudo systemctl start containerd

도커 로그 사이즈 지정

sudo mkdir -p /etc/docker
cat <<EOF | sudo tee /etc/docker/daemon.json
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF

sudo systemctl daemon-reload
sudo systemctl restart docker