CentOS 7 Docker 설치·컨테이너

CentOS 7 Docker 설치

sudo yum remove docker docker-client docker-client-latest docker-common \
  docker-latest docker-latest-logrotate docker-logrotate docker-engine

sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo yum install -y docker-ce docker-ce-cli containerd.io
sudo systemctl enable --now docker
docker --version

공식: docs.docker.com/engine/install/centos

컨테이너 기본

docker pull centos:7
docker run -itd --name centos7 -p 8022:22 centos:7 /bin/bash
docker exec -it centos7 /bin/bash
docker ps -a
docker stop centos7 && docker start centos7

컨테이너 SSH (호스트)

ssh -p 8022 root@<host-ip>

이미지 백업·삭제

docker commit centos7 centos_python
docker save -o centos_python.tar centos_python
docker load -i centos_python.tar

docker stop centos7 && docker rm centos7
docker rmi centos_python