RedHat7.4安装Docker的步骤

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操作系统版本：

1. Red Hat Enterprise linux Server release 7.4 (Maipo)

添加yum源：

1. vi /etc/yum.repos.d/docker.repo

[dockerrepo]
name=Docker Repository
baseurl=Http://yum.dockerproject.org/repo/main/Centos/7/
enabled=1
gpGCheck=0

安装：

1. yum install docker-engine -y

启动Docker服务：

1. systemctl start docker

检查是否安装成功：

1. [root@ip-172-31-29-22 yum.repos.d]# docker version
   Client:
    Version:      17.05.0-ce
    api version:  1.29
    Go version:   go1.7.5
    git commit:   89658be
    Built:        Thu May  4 22:06:25 2017
    OS/Arch:      linux/amd64
   
   
   Server:
    Version:      17.05.0-ce
    API version:  1.29 (minimum version 1.12)
    Go version:   go1.7.5
    Git commit:   89658be
    Built:        Thu May  4 22:06:25 2017
    OS/Arch:      linux/amd64
    Experimental: false
   
   

查看Docker容器总体状况：

1. [root@ip-172-31-29-22 yum.repos.d]# docker info
   

2. Containers: 0
   

3.  Running: 0
   

4.  Paused: 0
   

5.  Stopped: 0
   

6. Images: 0
   

7. Server Version: 17.05.0-ce
   

8. Storage Driver: overlay
   

9.  Backing Filesystem: xfs
   

10.  Supports d_type: true
    

11. Logging Driver: JSON-file
    

12. Cgroup Driver: cgroupfs
    

13. Plugins:
    

14.  Volume: local
    

15.  Network: bridge host Macvlan null overlay
    

16. Swarm: inactive
    

17. Runtimes: runc
    

18. Default Runtime: runc
    

19. Init Binary: docker-init
    

20. containerd version: 9048e5e50717ea4497b757314bad98ea3763c145
    

21. runc version: 9c2d8d184e5da67c95d601382adf14862e4f2228
    

22. init version: 949e6fa
    

23. Security Options:
    

24.  seccomp
    

25.   Profile: default
    

26. Kernel Version: 3.10.0-693.11.6.el7.x86_64
    

27. Operating System: Red Hat Enterprise Linux Server 7.4 (Maipo)
    

28. OSType: linux
    

29. Architecture: x86_64
    

30. CPUs: 1
    

31. Total Memory: 990.8MiB
    

32. Name: ip-172-31-29-22.ap-northeast-1.compute.internal
    

33. ID: 6C4S:W4VA:MSIK:TGZC:BHYU:3AHR:FJX7:44SO:467J:4ZNL:7T67:3GYK
    

34. Docker Root Dir: /var/lib/docker
    

35. Debug Mode (client): false
    

36. Debug Mode (server): false
    

37. ReGIStry: https://index.docker.io/v1/
    

38. Experimental: false
    

39. Insecure Registries:
    

40.  127.0.0.0/8
    

41. Live Restore Enabled: false

设置开机自动启动：
        1.默认是非开机自启的

1. [root@ip-172-31-29-22 yum.repos.d]# systemctl is-enabled docker
   

2. disabled

        2.设置开机启动

1. systemctl enable docker

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