CentOS 6.5安裝使用docker

在CentOS 6.5x64上安裝docker

1、安裝epel源

[root@docker ~]# rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
[root@docker ~]# sed -i 's@#b@b@g' /etc/yum.repos.d/epel.repo
[root@docker ~]# sed -i 's@mirrorlist@#mirrorlist@g' /etc/yum.repos.d/epel.repo
[root@docker  ~]#  yum update -y
[root@docker ~]# yum install docker-io -y

2、獲取鏡像

命令格式：docker pull NAME[:TAG]

注：對於Docker鏡像來講，若是不顯式的指定TAG，默認會選擇latest標籤，即下載最新版本鏡像。

從Docker Hub的centos倉庫獲取最新的centos鏡像。

[root@docker ~]# docker pull centos    #提示：該命令下載的是最新版的Centos：latest鏡像。

[root@docker ~]# docker p_w_picpaths        #查看鏡像
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos              7                   7322fbe74aa5        6 days ago          172.2 MB
centos              latest              7322fbe74aa5        6 days ago          172.2 MB
centos              centos7             7322fbe74aa5        6 days ago          172.2 MB

[root@docker ~]# docker pull centos:6.6        #拉取centos6.6的鏡像
Pulling repository centos
8b44529354f3: Download complete 
8b44529354f3: Pulling p_w_picpath (6.6) from centos 
Status: Downloaded newer p_w_picpath for centos:6.6

查看鏡像具體信息

[root@docker ~]# docker p_w_picpaths
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos              7                   7322fbe74aa5        6 days ago          172.2 MB
centos              centos7             7322fbe74aa5        6 days ago          172.2 MB
centos              latest              7322fbe74aa5        6 days ago          172.2 MB
centos              centos6.6           8b44529354f3        9 weeks ago         202.6 MB
centos              6.6                 8b44529354f3        9 weeks ago         202.6 MB
[root@docker ~]# docker inspect centos:6.6
[{
    "Architecture": "amd64",
    "Author": "The CentOS Project \u003ccloud-ops@centos.org\u003e - ami_creator",
    "Comment": "",
    "Config": {
        "AttachStderr": false,
        "AttachStdin": false,
        "AttachStdout": false,
        "Cmd": null,
        "CpuShares": 0,
        "Cpuset": "",
        "Domainname": "",
        "Entrypoint": null,
        "Env": null,
        "ExposedPorts": null,
        "Hostname": "40a225bdb73e",
        "Image": "f1b10cd842498c23d206ee0cbeaa9de8d2ae09ff3c7af2723a9e337a6965d639",
        "MacAddress": "",
        "Memory": 0,
        "MemorySwap": 0,
        "NetworkDisabled": false,
        "OnBuild": null,
        "OpenStdin": false,
        "PortSpecs": null,
        "StdinOnce": false,
        "Tty": false,
        "User": "",
        "Volumes": null,
        "WorkingDir": ""
    },
    "Container": "40a225bdb73e29eb0ecaa0af5986189c7f57ccefde02c39e31051de5ff63eed1",
    "ContainerConfig": {
        "AttachStderr": false,
        "AttachStdin": false,
        "AttachStdout": false,
        "Cmd": [
            "/bin/sh",
            "-c",
            "#(nop) ADD file:eab3c29917290b056db08167d3a9f769c4b4ce46403be2fad083bc2535fb4d03 in /"
        ],
        "CpuShares": 0,
        "Cpuset": "",
        "Domainname": "",
        "Entrypoint": null,
        "Env": null,
        "ExposedPorts": null,
        "Hostname": "40a225bdb73e",
        "Image": "f1b10cd842498c23d206ee0cbeaa9de8d2ae09ff3c7af2723a9e337a6965d639",
        "MacAddress": "",
        "Memory": 0,
        "MemorySwap": 0,
        "NetworkDisabled": false,
        "OnBuild": null,
        "OpenStdin": false,
        "PortSpecs": null,
        "StdinOnce": false,
        "Tty": false,
        "User": "",
        "Volumes": null,
        "WorkingDir": ""
    },
    "Created": "2015-04-22T05:13:47.072498418Z",
    "DockerVersion": "1.6.0",
    "Id": "8b44529354f3ca0fbe44794e2dbd0169a8ae6e2cdfa2d6df3fcd0777892ebb85",
    "Os": "linux",
    "Parent": "f1b10cd842498c23d206ee0cbeaa9de8d2ae09ff3c7af2723a9e337a6965d639",
    "Size": 202602386,
    "VirtualSize": 202602386
}
]

搜索鏡像

[root@docker ~]# docker search centos        #這裏是從默認的註冊服務器搜索相關鏡像
NAME                          DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
centos                        The official build of CentOS.                   1083      [OK]       
tutum/centos                  Centos p_w_picpath with SSH access. For the root...   13                   [OK]
blalor/centos                 Bare-bones base CentOS 6.5 p_w_picpath                9                    [OK]
torusware/speedus-centos      Always updated official CentOS docker imag...   6                    [OK]
million12/centos-supervisor   Base CentOS-7 with supervisord launcher, h...   4                    [OK]
jdeathe/centos-ssh            CentOS-6 6.6 x86_64 / EPEL Repo. / OpenSSH...   3                    [OK]
layerworx/centos              A general CentOS 6 p_w_picpath with the EPEL6 an...   2                    [OK]
pdericson/centos              Docker p_w_picpath for CentOS                         0                    [OK]
nathonfowlie/centos-jre       Latest CentOS p_w_picpath with the JRE pre-insta...   0                    [OK]
akroh/centos                  Centos 6 container that has been updated w...   0                    [OK]

刪除鏡像

[root@docker ~]# docker p_w_picpaths
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos              centos7             7322fbe74aa5        6 days ago          172.2 MB
centos              latest              7322fbe74aa5        6 days ago          172.2 MB
centos              6.6                 8b44529354f3        9 weeks ago         202.6 MB
centos              centos6.6           8b44529354f3        9 weeks ago         202.6 MB
[root@docker ~]# docker rmi centos:latest
Untagged: centos:latest
[root@docker ~]# docker rmi centos:6.6        #刪除指定的鏡像
Untagged: centos:6.6
[root@docker ~]# docker p_w_picpaths
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos              centos7             7322fbe74aa5        6 days ago          172.2 MB
centos              centos6.6           8b44529354f3        9 weeks ago         202.6 MB