使用官方安装脚本自动安装
安装命令如下：
curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
也可以使用国内 daocloud 一键安装命令：
curl -sSL https://get.daocloud.io/docker | sh
[root@mcw1 /application]$ curl -sSL https://get.daocloud.io/docker | sh # Executing docker install script, commit: 93d2499759296ac1f9c510605fef85052a2c32be + sh -c 'yum install -y -q yum-utils' Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version + sh -c 'yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo' Loaded plugins: fastestmirror adding repo from: https://download.docker.com/linux/centos/docker-ce.repo grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo repo saved to /etc/yum.repos.d/docker-ce.repo + '[' stable '!=' stable ']' + sh -c 'yum makecache' Loaded plugins: fastestmirror base | 3.6 kB 00:00:00 docker-ce-stable | 3.5 kB 00:00:00 epel | 4.7 kB 00:00:00 extras | 2.9 kB 00:00:00 updates | 2.9 kB 00:00:00 (1/11): base/7/x86_64/other_db | 2.6 MB 00:00:03 (2/11): epel/x86_64/prestodelta | 447 B 00:00:00 (3/11): epel/x86_64/other_db | 3.3 MB 00:00:06 (4/11): extras/7/x86_64/filelists_db | 259 kB 00:00:00 (5/11): extras/7/x86_64/other_db | 145 kB 00:00:00 (6/11): base/7/x86_64/filelists_db | 7.2 MB 00:00:11 (7/11): updates/7/x86_64/other_db | 903 kB 00:00:02 (8/11): epel/x86_64/filelists_db | 12 MB 00:00:15 (9/11): updates/7/x86_64/filelists_db | 7.0 MB 00:00:08 (10/11): docker-ce-stable/7/x86_64/other_db | 122 kB 00:00:18 (11/11): docker-ce-stable/7/x86_64/filelists_db | 29 kB 00:00:25 Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com Metadata Cache Created + '[' -n '' ']' + sh -c 'yum install -y -q docker-ce' No Presto metadata available for base No Presto metadata available for updates warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-20.10.12-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY Public key for docker-ce-20.10.12-3.el7.x86_64.rpm is not installed Importing GPG key 0x621E9F35: Userid : "Docker Release (CE rpm) <docker@docker.com>" Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35 From : https://download.docker.com/linux/centos/gpg setsebool: SELinux is disabled. + version_gte 20.10 + '[' -z '' ']' + return 0 + sh -c 'yum install -y -q docker-ce-rootless-extras' Package docker-ce-rootless-extras-20.10.12-3.el7.x86_64 already installed and latest version ================================================================================ To run Docker as a non-privileged user, consider setting up the Docker daemon in rootless mode for your user: dockerd-rootless-setuptool.sh install Visit https://docs.docker.com/go/rootless/ to learn about rootless mode. To run the Docker daemon as a fully privileged service, but granting non-root users access, refer to https://docs.docker.com/go/daemon-access/ WARNING: Access to the remote API on a privileged Docker daemon is equivalent to root access on the host. Refer to the 'Docker daemon attack surface' documentation for details: https://docs.docker.com/go/attack-surface/ ================================================================================