Shulou(Shulou.com)06/03 Report--

1. 64-bit version of CentOS supported by Docker

1) CentOS 7

2) CentOS 8

3) later version

2. Uninstall the old version

[root@localhost ~] # yum remove docker docker-client docker-client-latest docker-common dokcer-latest docker-latest-logrotate docker-logrotate docker-engine

3. Set the Docker source

[root@localhost ~] # yum install-y yum-utils device-mappee-persistent-data lvm2

[root@localhost ~] # yum-config-manager-- add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

[root@localhost ~] # yum makecache fast

4. Install Docker (the default installation is the latest version)

[root@localhost ~] # yum install-y docker-ce docker-ce-cli containerd.io

5. Install the specified version

1) list the available versions (from high to low)

[root@localhost ~] # yum list docker-ce-- showduplicates | sort-r

2) install a specific version with the full package name, such as that name (docker-ce) plus the version string (second column), from the first colon (:) to the first concatenation character, separated by a hyphen (-). For example: docker-ce-18.09.9

[root@localhost ~] # yum install-y docker-ce-18.09.9 docker-ce-cli-18.09.9 containerd.io

6. Start docker

[root@localhost ~] # systemctl start docker.service

7. Docker starts from boot.

[root@localhost ~] # systemctl enable docker.service

8. Verify that docker is installed by running hello-world

[root@localhost ~] # docker run hello-world

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