Docker 설치 공식 가이드 for CentOS

• https://docs.docker.com/install/linux/docker-ce/centos/

OS 요구 사항

• To install Docker CE, you need a maintained version of CentOS 7. Archived versions aren’t supported or tested.

  The centos-extras repository must be enabled. This repository is enabled by default, but if you have disabled it, you need to re-enable it.

  The overlay2 storage driver is recommended.

  출처

  • https://docs.docker.com/storage/storagedriver/select-storage-driver/

  
  

  Docker Engine - Community

  • For Docker Engine - Community, only some configurations are tested, and your operating system’s kernel may not support every storage driver. In general, the following configurations work on recent versions of the Linux distribution:

  Linux distribution	Recommended storage drivers	Alternative drivers
  Docker Engine - Community on Ubuntu	overlay2 or aufs (for Ubuntu 14.04 running on kernel 3.13)	overlay¹, devicemapper², zfs, vfs
  Docker Engine - Community on Debian	overlay2 (Debian Stretch), aufs or devicemapper(older versions)	overlay¹, vfs
  Docker Engine - Community on CentOS	overlay2	overlay¹, devicemapper², zfs, vfs
  Docker Engine - Community on Fedora	overlay2	overlay¹, devicemapper², zfs, vfs

  Supported backing filesystems

  • With regard to Docker, the backing filesystem is the filesystem where /var/lib/docker/ is located. Some storage drivers only work with specific backing filesystems.

  Storage driver	Supported backing filesystems
  overlay2, overlay	xfs with ftype=1, ext4
  aufs	xfs, ext4
  devicemapper	direct-lvm
  btrfs	btrfs
  zfs	zfs
  vfs	any filesystem

Uninstall old versions

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

Docker CE 설치

1. 저장소를 설정하고 설치하는 방법 : 가장 일반적인 방법으로 설치 및 업그레이드 작업을 쉽게하기 위해
2. 수동으로 설치 : PM 패키지를 다운로드하여 수동으로 설치 하고 업그레이드를 완전히 수동으로 관리 (for not Internet)
3. 자동화된 스크립트로 설치 : 테스트 및 개발 환경에서 사용하여 Docker를 설치

저장소를 설정하고 설치하는 방법

• 필수 패키지 설치

  • $ sudo yum install -y yum-utils \
      device-mapper-persistent-data \
      lvm2

• Stable repository 설정

  $ sudo yum-config-manager \
      --add-repo \
      https://download.docker.com/linux/centos/docker-ce.repo

Docker CE 설치

• 최신 버전설치

  $ sudo yum install docker-ce docker-ce-cli containerd.io