centos7安裝docker

1.官網中文安裝參考手冊

https://docs.docker-cn.com/engine/installation/linux/docker-ce/centos/#prerequisites

二、yum安裝gcc相關

1）CentOS7能上外網

 

 

 2）安裝gcc

[root@localhost ~]# yum -y install gcc
3）安裝gcc-c++

[root@localhost ~]# yum -y install gcc-c++

圖像出現以下說明安裝成功！！！

 

三、若是以前安裝過docker，卸載舊版本

 

 [root@localhost ~]# yum remove docker \
>                       docker-client \
>                       docker-client-latest \
>                       docker-common \
>                       docker-latest \
>                       docker-latest-logrotate \
>                       docker-logrotate \
>                       docker-engine
四、安裝須要的軟件包

[root@localhost ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
五、設置stable鏡像倉庫

[root@localhost ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
六、更新yum軟件包索引

[root@localhost ~]# yum makecache fast
七、安裝DOCKER CE

[root@localhost ~]# yum -y install docker-ce
八、啓動docker

[root@localhost ~]# systemctl start docker
九、測試

1）查看docker版本

[root@localhost ~]# docker version
Client:
 Version:           18.09.6
 API version:       1.39
 Go version:        go1.10.8
 Git commit:        481bc77156
 Built:             Sat May  4 02:34:58 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          18.09.6
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.8
  Git commit:       481bc77
  Built:            Sat May  4 02:02:43 2019
  OS/Arch:          linux/amd64
  Experimental:     false
[root@localhost ~]#

2）運行 hello-world
[root@localhost ~]# docker run hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

[root@localhost ~]#
十一、配置鏡像加速
1）、獲取阿里雲鏡像加速器參考：https://blog.csdn.net/li1325169021/article/details/90770119

[root@localhost ~]#  mkdir -p /etc/docker
[root@localhost ~]# vim  /etc/docker/daemon.json
在文件中添加以下配置
#阿里雲鏡像加速器
#網易雲

{"registry-mirrors": ["http://hub-mirror.c.163.com"] }

 #阿里雲

{

  "registry-mirrors": ["https://｛自已的編碼｝.mirror.aliyuncs.com"]

}

[root@localhost ~]# systemctl daemon-reload
[root@localhost ~]# systemctl restart docker
2）、配置鏡像加速後重啓docker可能會報錯，參考：http://www.javashuo.com/article/p-yvwfjvaz-my.html

十二、卸載

[root@localhost ~]#  systemctl stop docker [root@localhost ~]# yum -y remove docker-ce[root@localhost ~]# rm -rf /var/lib/docker