Linux 安装docker

 安装docker

1.清楚系统残余项

命令:

                         sudo yum remove docker \
                         docker-client \
                         docker-client-latest \
                         docker-common \
                         docker-latest \
                         docker-latest-logrotate \
                         docker-logrotate \
                         docker-selinux \
                         docker-engine-selinux \
                         docker-engine

执行结果

2.安装下载Docker依赖的工具

sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

执行结果:

 以后每个软件都优先从阿里云的软件库中下载，如果阿里云仓库没有，会去docker.hub中下载。（与maven仓库同理）

3.更新yum缓存（为了保证能更新和下载需要的服务：如dock

sudo yum makecache 

执行结果:

 4.安装Docker

sudo yum -y install docker-ce

执行结果:

看到完毕就代表安装成功了 

5.启动Dokcer服务

sudo systemctl start docker

以上我们已经将Docker安装好了，接下来测试下Docker是否可以顺利启动：

docker info

执行结果:

 
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Docker Buildx (Docker Inc., v0.9.1-docker)
  scan: Docker Scan (Docker Inc., v0.23.0)
 
Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 0
 Server Version: 20.10.22
 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: 78f51771157abb6c9ed224c22013cdf09962315d
 runc version: v1.1.4-0-g5fd4c4d
 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: 4
 Total Memory: 1.777GiB
 Name: 192.168.73.128
 ID: U6HV:4B5S:FJ7Q:3O3K:ECJT:GDCZ:4OZF:K3JN:FAVX:TONC:YWOY:5XKV
 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

6.设置开机自启

sudo systemctl enable docker

到这一步dokcer的安装已经全部完成了

7.查看当前Docker的版本

命令:

docker -v