도커 (Docker)

참고: Docker 설치

Set up the repository

1. Update the apt package index and install packages to allow apt to use a repository over HTTPS:

$ sudo apt-get update
$ sudo apt-get install \
    ca-certificates \
    curl \
    gnupg

2. Add Docker’s official GPG key:

$ sudo mkdir -m 0755 -p /etc/apt/keyrings
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

3. Use the following command to set up the stable repository.

$ 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

Install Docker Engine

$ sudo apt-get update
$ sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

daemon.json 수정

도커 레지스트리에서 인증 없이 docker pull을 하기 위해 아래와 같이 수정하자.

$ cd /etc/docker
$ sudo vi daemon.json

{
    ...
    "exec-opts":["native.cgroupdriver=systemd"], // 추가
    "insecure-registries": ["도커 레지스트리 주소"], // 추가
    ...
}
 

Docker 재시작

$ sudo systemctl daemon-reload
$ sudo systemctl restart docker
$ sudo systemctl restart kubelet (kubelet이 설치 되어있으면 재시작)