1、添加Docker国内源
1.1、安装yum管理工具
$ sudo yum install -y yum-utils device-mapper-persistent-data lvm2
1.2、安装国内源
$sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
点击链接不能下载，则需要替换其他国内源：
http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
2、安装Docker CE
2.1安装docker ce最新版
$ sudo yum install docker-ce docker-ce-cli containerd.io
2.2添加国内镜像创库
修改/etc/docker/daemon.json（没有则创建,有则直接修改）
创建daemon.json（发生过不创建docker文件夹时在vi保存失败,创建docker文件夹mkdir /etc/docker）
$vi /etc/docker/daemon.json
修改daemon.json
{
"registry-mirrors": ["https://aacfpfx3.mirror.aliyuncs.com","http://registry.docker-cn.com","http://docker.mirrors.ustc.edu.cn","http://hub-mirror.c.163.com"]
}
配置刷新一下
$ sudo systemctl daemon-reload
重启docker生效
$ sudo systemctl restart docker
3、启动docker和设置开机启动
启动
$ sudo systemctl start docker
设置开机启动
$ sudo systemctl enable docker
4、查看docker信息
$ docker info
Client:
Context: default
Debug Mode: false
Plugins:
app: Docker App (Docker Inc., v0.9.1-beta3)
buildx: Build with BuildKit (Docker Inc., v0.5.1-docker)
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 20.10.2
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: runc io.containerd.runc.v2 io.containerd.runtime.v1.linux
Default Runtime: runc
Init Binary: docker-init
containerd version: 269548fa27e0089a8b8278fc4fc781d7f65a939b
runc version: ff819c7e9184c13b7c2607fe6c30ae19403a7aff
init version: de40ad0
Security Options:
seccomp
Profile: default
Kernel Version: 3.10.0-1127.19.1.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 1.795GiB
Name: VM-8-3-centos
ID: 64V3:NGZV:CTTC:6U6I:WC3V:3L4D:2SMO:XMX3:QIPJ:ZW2R:6BSV:VPZA
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Registry Mirrors:
https://aacfpfx3.mirror.aliyuncs.com/
http://registry.docker-cn.com/
http://docker.mirrors.ustc.edu.cn/
http://hub-mirror.c.163.com/
Live Restore Enabled: false
