安装Docker太慢解决方案注：Centos系统内核要不低于3.10，可通过 uname -r 来查询当前内核版本。安

注：Centos系统内核要不低于3.10，可通过 uname -r 来查询当前内核版本。

安装依赖包，执行命令

yum ``install -y yum-utils device-mapper-persistent-data lvm2

配置国内源（直接执行安装docker命令会很慢。配置国内的源可以解决问题-阿里云的源。）
yum-config-manager --add-repo mirrors.aliyun.com/docker-ce/l… 接着再执行安装docker命令
yum install docker-ce docker-ce-cli containerd.io
配置docker开机自启
systemctl enable docker
启动docke命令
systemctl start docker
查看Docker是否成功
docker info

[root@anonymous /]# docker info
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Docker Buildx (Docker Inc., v0.8.1-docker)
  scan: Docker Scan (Docker Inc., v0.17.0)

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 0
 Server Version: 20.10.14
 Storage Driver: overlay2
  Backing Filesystem: xfs
  Supports d_type: true
  Native Overlay Diff: true
  userxattr: false
 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: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 3df54a852345ae127d1fa3092b95168e4a88e2f8
 runc version: v1.0.3-0-gf46b6ba
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
 Kernel Version: 3.10.0-1160.el7.x86_64
 Operating System: CentOS Linux 7 (Core)
 OSType: linux
 Architecture: x86_64
 CPUs: 1
 Total Memory: 1.917GiB
 Name: anonymous
 ID: 7FPP:SK5H:BL4I:3OQT:VWTM:YMNG:GHVH:JC2N:EJY3:YEIK:RFIJ:SKCU
 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
 Live Restore Enabled: false

查看docker版本（也可通过该命令检测是否安装成功）
docker -v
移除Docker-ce服务并删除Docker依赖项
yum remove docker-ce
sudo rm -rf /var/lib/docker\

添加阿里容器镜像，开启镜像加速功能

sudo mkdir -p ``/etc/docker``sudo tee /etc/docker/daemon``.json <<-``'EOF'``{`` ``"registry-mirrors"``: [``"https://2m12ya32.mirror.aliyuncs.com"``]``}``EOF``sudo systemctl daemon-reload``sudo systemctl restart docker |-