一、查看系统内核版本号
1.查看系统内核版本号
[root@m01 ~]# uname -a
Linux m01 3.10.0-957.el7.x86_64 #1 SMP Thu Nov 8 23:39:32 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
2.备份原来YUN源
[root@m01 ~]# cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
3.更换YUM源
[root@m01 ~]# curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
4.刷新yum源缓存
[root@m01 ~]# yum makecache
5.新机器更新系统
#
[root@alvin-test-os ~]# yum update -y --exclud=kernel*
二、安装依赖包
[root@m01 ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
三、添加Docker镜像源
[root@m01 ~]# yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[root@m01 ~]# ll /etc/yum.repos.d/
total 12
-rw-r--r--. 1 root root 2523 Aug 6 00:39 CentOS-Base.repo
-rw-r--r-- 1 root root 2640 Mar 16 2020 docker-ce.repo
-rw-r--r--. 1 root root 664 Aug 6 00:40 epel.repo
四、安装Docker
默认安装最新版本
yum install docker-ce
查看docker版本,一般使用稳定版
yum list docker-ce --showduplicates | sort -r
安装某特定版本需增加版本号(如18.06.3.ce-3.el7)
yum install docker-ce-18.06.3.ce
五、设置开机自启动
[root@m01 ~]# systemctl enable --now docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
六、验证服务
[root@m01 ~]# docker --version
Docker version 20.10.2, build 2291f61
七、设置加速器
1.打开阿里云官网
2.选择 产品 --> 容器与中间件 --> 容器与镜像服务ACR --> 管理控制台 --> 镜像加速器
[root@m01 ~]# sudo mkdir -p /etc/docker
[root@m01 ~]# sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://8mh75mhz.mirror.aliyuncs.com"]
}
EOF
[root@m01 ~]# sudo systemctl daemon-reload
[root@m01 ~]# sudo systemctl restart docker
八、Docker第一个案例
[root@docker /]# docker run -d -P --rm nginx
Unable to find image 'nginx:latest' locally
latest: Pulling from library/nginx
6ec7b7d162b2: Pull complete
cb420a90068e: Pull complete
2766c0bf2b07: Pull complete
e05167b6a99d: Pull complete
70ac9d795e79: Pull complete
Digest: sha256:4cf620a5c81390ee209398ecc18e5fb9dd0f5155cd82adcbae532fec94006fb9
Status: Downloaded newer image for nginx:latest
c5938fd6c0f392b429e12a5ea5ba7ed1e27befe2dde1247c843f70ca3d9db138
[root@docker /]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c5938fd6c0f3 nginx "/docker-entrypoint.…" About a minute ago Up About a minute 0.0.0.0:49153->80/tcp naughty_buck
标签:repo,--,20.10,Centos7,yum,m01,docker,root,Docker
From: https://www.cnblogs.com/GAO321/p/16715945.html