牛刀小试之docker容器系列(0)

牛刀小试之docker安装部署

 Posted on July 6, 2015  |  4 minutes  |  671 words  |  Kenng zhang

牛刀小试之docker容器系列(0)

牛刀小试之docker安装部署

 Posted on July 6, 2015  |  4 minutes  |  671 words  |  Kenng zhang

安装

    [root@docker-master yum.repos.d]#  curl https://git.oschina.net/feedao/Docker_shell/raw/start/ali-centos.sh | sh
    [root@docker-master yum.repos.d]#  yum install docker-io

启动

    [root@docker-master yum.repos.d]# service docker start
    Starting cgconfig service:                                 [  OK  ]
    Starting docker:                                        [  OK  ]
    [root@docker-master yum.repos.d]# chkconfig --level 35 docker on
    [root@docker-master yum.repos.d]#

查看版本

    [root@test-devops mysql]#
    [root@test-devops mysql]# docker version
    Client version: 1.5.0
    Client API version: 1.17
    Go version (client): go1.3.3
    Git commit (client): a8a31ef/1.5.0
    OS/Arch (client): linux/amd64
    Server version: 1.5.0
    Server API version: 1.17
    Go version (server): go1.3.3
    Git commit (server): a8a31ef/1.5.0
    [root@test-devops mysql]#

使用docker获取镜像

    [root@docker-master ~]# docker pull ubuntu:12.04
    Pulling repository ubuntu
    28a945b4333c: Pulling image (12.04) from ubuntu, endpoint: https://registry-1.docker.io/v128a945b4333c: Download complete
    511136ea3c5a: Download complete
    a0ab785b06af: Download complete
    db7c9bd0e843: Download complete
    14500324c585: Download complete
    Status: Downloaded newer image for ubuntu:12.04
    [root@docker-master ~]#

也可以如下方式安装：

    [root@docker-master ~]# docker pull dl.dockerpool.com:5000/ubuntu:12.04

下载完成之后使用镜像创建容器：

    [root@docker-master ~]# docker run -t -i ubuntu:12.04 /bin/bash
    root@a38b24272f39:/# pwd
    /
    root@a38b24272f39:/# hostname
    a38b24272f39
    root@a38b24272f39:/#
    －t 是指分派一个伪终端
    －i 是让容器标准输出打开

列出本地镜像：

    [root@docker-master ~]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
    ubuntu              12.04               28a945b4333c        3 days ago          130.3 MB
    ubuntu              12.04.5             28a945b4333c        3 days ago          130.3 MB
    ubuntu              precise             28a945b4333c        3 days ago          130.3 MB
    [root@docker-master ~]#


    REPOSITORY  来自哪个仓库
    TAG                   标签
    ImageID             唯一ID
    Created              创建时间
    Size                   镜像大小

新建使用：

    [root@docker-master test]# docker run ubuntu:12.04 /bin/echo "hello world"
    hello world
    [root@docker-master test]#

    导出导入容器：

#查看 ID

    [root@docker-master ~]# docker ps a
    CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
    7582b0eaf376        ubuntu:latest       "/bin/bash"         12 minutes ago      Up 12 minutes                           desperate_feynman
    268b9fc77889        ubuntu:12.04        "/bin/bash"         29 minutes ago      Up 29 minutes                           tender_galileo

#备份id镜像

    [root@docker-master ~]# docker export 7582b0eaf376 > ubuntu.tar
    [root@docker-master ~]# cat ubuntu.tar | docker import - test/buntu:v1.0
    bcbf83ff7331f3a222a0c18a94379ab7e95aea60202751ccd5c1ab651528cb85

#导入备份ID

    [root@docker-master ~]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
    test/buntu          v1.0                bcbf83ff7331        30 seconds ago      192.5 MB
    <none>              <none>              3039b31f25fe        3 hours ago         222 MB
    ubuntu              precise             28a945b4333c        4 days ago          130.3 MB
    ubuntu              12.04               28a945b4333c        4 days ago          130.3 MB
    ubuntu              12.04.5             28a945b4333c        4 days ago          130.3 MB
    ubuntu              latest              04c5d3b7b065        2 weeks ago         192.7 MB
    centos              centos6             25c5298b1a36        4 weeks ago         215.8 MB
    jpetazzo/nsenter    latest              6ed3da1d7fa6        5 weeks ago         367.7 MB
    [root@docker-master ~]#

删除images

    [root@docker-master ~]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
    test/buntu          v1.0                bcbf83ff7331        19 minutes ago      192.5 MB
    <none>              <none>              3039b31f25fe        4 hours ago         222 MB
    ubuntu              12.04               28a945b4333c        4 days ago          130.3 MB
    ubuntu              12.04.5             28a945b4333c        4 days ago          130.3 MB
    ubuntu              precise             28a945b4333c        4 days ago          130.3 MB
    ubuntu              latest              04c5d3b7b065        2 weeks ago         192.7 MB
    centos              centos6             25c5298b1a36        4 weeks ago         215.8 MB
    jpetazzo/nsenter    latest              6ed3da1d7fa6        5 weeks ago         367.7 MB
    [root@docker-master ~]# docker rmi test/buntu:v1.0
    Untagged: test/buntu:v1.0
    Deleted: bcbf83ff7331f3a222a0c18a94379ab7e95aea60202751ccd5c1ab651528cb85
    [root@docker-master ~]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
    <none>              <none>              3039b31f25fe        4 hours ago         222 MB
    ubuntu              12.04.5             28a945b4333c        4 days ago          130.3 MB
    ubuntu              precise             28a945b4333c        4 days ago          130.3 MB
    ubuntu              12.04               28a945b4333c        4 days ago          130.3 MB
    ubuntu              latest              04c5d3b7b065        2 weeks ago         192.7 MB
    centos              centos6             25c5298b1a36        4 weeks ago         215.8 MB
    jpetazzo/nsenter    latest              6ed3da1d7fa6        5 weeks ago         367.7 MB
    [root@docker-master ~]#

搜索IOS

    [root@docker-master ~]# docker search centos
    可以查看到镜像的名字 描述 星级 是否官方创建 是否自动创建等等。

下载IOS镜像

    [root@docker-master ~]# docker pull centos
    Pulling repository centos
    acc1b23376ec: Download complete
    511136ea3c5a: Download complete
    5b12ef8fd570: Download complete
    Status: Downloaded newer image for centos:latest
    [root@docker-master ~]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED                  VIRTUAL SIZE
    centos              latest              acc1b23376ec        Less than a second ago   224 MB
    centos              centos7             acc1b23376ec        Less than a second ago   224 MB
    <none>              <none>              3039b31f25fe        4 hours ago              222 MB
    ubuntu              12.04               28a945b4333c        4 days ago               130.3 MB
    ubuntu              12.04.5             28a945b4333c        4 days ago               130.3 MB
    ubuntu              latest              04c5d3b7b065        2 weeks ago              192.7 MB
    jpetazzo/nsenter    latest              6ed3da1d7fa6        5 weeks ago              367.7 MB
    [root@docker-master ~]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED                  VIRTUAL SIZE
    centos              centos7             acc1b23376ec        Less than a second ago   224 MB
    centos              latest              acc1b23376ec        Less than a second ago   224 MB
    <none>              <none>              3039b31f25fe        4 hours ago              222 MB
    ubuntu              12.04               28a945b4333c        4 days ago               130.3 MB
    ubuntu              12.04.5             28a945b4333c        4 days ago               130.3 MB
    ubuntu              latest              04c5d3b7b065        2 weeks ago              192.7 MB
    jpetazzo/nsenter    latest              6ed3da1d7fa6        5 weeks ago              367.7 MB
    [root@docker-master ~]#
docker 

See also