centos7 安裝docker
1、安裝依賴
yum install -y yum-utils device-mapper-persistent-data lvm2
2、設置yum源
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
3、可以查看所有倉庫中所有docker版本，并選擇特定版本安裝
yum list docker-ce --showduplicates | sort -r
4、安裝docker
yum install docker-ce-20.10.12-3.el7.x86_64
5、驗證
docker version Client: Docker Engine - Community Version: 20.10.12 API version: 1.41 Go version: go1.16.12 Git commit: e91ed57 Built: Mon Dec 13 11:45:41 2021 OS/Arch: linux/amd64 Context: default Experimental: true Server: Docker Engine - Community Engine: Version: 20.10.12 API version: 1.41 (minimum version 1.12) Go version: go1.16.12 Git commit: 459d0df Built: Mon Dec 13 11:44:05 2021 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.4.13 GitCommit: 9cc61520f4cd876b86e77edfeb88fbcd536d1f9d runc: Version: 1.0.3 GitCommit: v1.0.3-0-gf46b6ba docker-init: Version: 0.19.0 GitCommit: de40ad0 [root@localhost ~]# docker version Client: Docker Engine - Community Version: 20.10.12 API version: 1.41 Go version: go1.16.12 Git commit: e91ed57 Built: Mon Dec 13 11:45:41 2021 OS/Arch: linux/amd64 Context: default Experimental: true Server: Docker Engine - Community Engine: Version: 20.10.12 API version: 1.41 (minimum version 1.12) Go version: go1.16.12 Git commit: 459d0df Built: Mon Dec 13 11:44:05 2021 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.4.13 GitCommit: 9cc61520f4cd876b86e77edfeb88fbcd536d1f9d runc: Version: 1.0.3 GitCommit: v1.0.3-0-gf46b6ba docker-init: Version: 0.19.0 GitCommit: de40ad0
6、開機自啟
systemctl start docker
systemctl enable docker
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