centos7安装docker记录

​​引自链接​​

卸载旧的版本

yum remove docker  docker-common docker-selinux docker-engine

安装详细步骤

1.安装需要的软件包， yum-util 提供yum-config-manager功能，另两个是devicemapper驱动依赖

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

2.设置 yum 源

yum-config-manager --add-repo http://download.docker.com/linux/centos/docker-ce.repo（中央仓库）

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo（阿里仓库）

设置一个yum源，下面两个都可用

查看有哪些可用版本

yum list docker-ce --showduplicates | sort -r

安装

yum -y install docker-ce-18.03.1.ce

安装后启动并设置开机启动

systemctl start docker
systemctl enable docker

查看版本信息

[root@master ~]# docker info
Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 0
Server Version: 18.03.1-ce
Storage Driver: overlay2
 Backing Filesystem: xfs
 Supports d_type: true
 Native Overlay Diff: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: 949e6fa
Security Options:
 seccomp
  Profile: default
Kernel Version: 3.10.0-514.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 3.686GiB
Name: master
ID: W5ZX:SRR3:S6VD:THWY:ETFA:MJOQ:BHRT:56JP:244T:KLX3:TD4Y:WN7C
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false