安装docker最新版

1.yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine

2.rm -rf /var/lib/docker

3.yum install -y yum-utils \
device-mapper-persistent-data \
lvm2

4.yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo

5.yum install docker-ce docker-ce-cli containerd.io

6.systemctl  start docker

7.docker info

[root@iZlzac92kj9thkZ app]# docker info

Client:

 Debug Mode: false

Server:

 Containers: 0

  Running: 0

  Paused: 0

  Stopped: 0

 Images: 0

 Server Version: 19.03.3

 Storage Driver: overlay2

  Backing Filesystem: extfs

  Supports d_type: true

  Native Overlay Diff: true

 Logging Driver: json-file

 Cgroup Driver: cgroupfs

 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

 Default Runtime: runc

 Init Binary: docker-init

 containerd version: 894b81a4b802e4eb2a91d1ce216b8817763c29fb

 runc version: 425e105d5a03fabd737a126ad93d62a9eeede87f

 init version: fec3683

 Security Options:

  seccomp

   Profile: default

 Kernel Version: 3.10.0-957.21.3.el7.x86_64

 Operating System: CentOS Linux 7 (Core)

 OSType: linux

 Architecture: x86_64

 CPUs: 8

 Total Memory: 15.51GiB

 Name: iZlzac92kj9thkZ

 ID: MUHM:VRFQ:U5T4:66NT:UMBZ:AGCS:CF3U:N6XL:WGJH:SLOF:BHJA:NR56

 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