Docker 使用方法总结之：镜像

查找

命令：docker search [OPTIONS] TERM

相关参数：

Search the Docker Hub for images

  --automated=false    Only show automated builds

  --no-trunc=false     Don't truncate output

  -s, --stars=0        Only displays with at least x stars

例子：

[root@localhost ~]# docker search mysql

NAME                         DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED

mysql                        MySQL is a widely used, open-source relati...   655       [OK]       

tutum/mysql                  MySQL Server image - listens in port 3306....   115                  [OK]

orchardup/mysql                                                              37                   [OK]

centurylink/mysql            Image containing mysql. Optimized to be li...   21                   [OK]

...................

获取

命令：docker pull [OPTIONS] NAME[:TAG]

参数：  -a, --all-tags=false    Download all tagged images in the repository

例子：

[root@localhost ~]# docker pull tutum/mysql

Pulling repository tutum/mysql

26c0c52dc79a: Pulling dependent layers

511136ea3c5a: Download complete

27d47432a69b: Download complete

5f92234dcf1e: Download complete

51a9c7c1f8bb: Download complete

5ba9dab47459: Download complete

d26d9affc74e: Download complete

c8420faa4614: Download complete

.........

运行image

命令：docker run -t -i tutum/mysql /bin/bash

查看列表

命令：docker images [OPTIONS] [NAME]

参数

  -a, --all=false      Show all images (by default filter out the intermediate image layers)

  -f, --filter=[]      Provide filter values (i.e. 'dangling=true')

  --no-trunc=false     Don't truncate output

  -q, --quiet=false    Only show numeric IDs

例子

[root@localhost ~]# docker images -a

REPOSITORY            TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

<none>                <none>              6941bfcbbfca        10 days ago         0 B

eric/ubuntu           latest              52671e55fb86        6 weeks ago         270.3 MB

<none>                <none>              c8420faa4614        3 months ago        192.7 MB

<none>                <none>              d26d9affc74e        3 months ago        192.7 MB

<none>                <none>              5ba9dab47459        3 months ago        192.7 MB
更改TAG

更改之前：

[root@localhost ~]# docker images

REPOSITORY            TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

centos                7                   fd44297e2ddb        10 days ago         229.6 MB

centos                centos7             fd44297e2ddb        10 days ago         229.6 MB

centos                latest              fd44297e2ddb        10 days ago         229.6 MB

eric/ubuntu           latest              52671e55fb86        6 weeks ago         270.3 MB
tutum/mysql           latest              26c0c52dc79a        3 months ago        322.5 MB

centos_6_5            ansible             f01c1b138488        10 months ago       322.4 MB

chug/ubuntu12.10x64   latest              0b96c14dafcd        13 months ago       270.3 MB

执行命令:

docker tag tutum/mysql:latest localrepo:newtag

更改之后:

[root@localhost ~]# docker images

REPOSITORY            TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

centos                7                   fd44297e2ddb        10 days ago         229.6 MB

centos                centos7             fd44297e2ddb        10 days ago         229.6 MB

centos                latest              fd44297e2ddb        10 days ago         229.6 MB

eric/ubuntu           latest              52671e55fb86        6 weeks ago         270.3 MB
tutum/mysql           latest              26c0c52dc79a        3 months ago        322.5 MB

localrepo             newtag              26c0c52dc79a        3 months ago        322.5 MB

centos_6_5            ansible             f01c1b138488        10 months ago       322.4 MB

chug/ubuntu12.10x64   latest              0b96c14dafcd        13 months ago       270.3 MB

查看明细

命令：docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]

参数：-f, --format=""    Format the output using the given go template.

例子：

[root@localhost ~]# docker inspect f01c1b138488

删除

命令：docker rmi [OPTIONS] IMAGE [IMAGE...]

参数： 

-f, --force=false    Force removal of the image

--no-prune=false     Do not delete untagged parents

例子：

[root@localhost ~]# docker rmi 26c
Error response from daemon: Conflict, cannot delete 26c0c52dc79a because the container 002ca178e599 is using it, use -f to force

上面出错的原因是因为该镜像正在被002ca178e599的容器使用，所以不能删除，所以首先需要使用docker rm删除容器，然后再删除，相关的AUFS文件也会被删除

[root@localhost ~]# docker rm 002

002

[root@localhost ~]# docker rmi 26c

Untagged: localrepo:newtag

Deleted: 26c0c52dc79af8acf07a18cd1693bfae91926f496ee4d1c1dbe29a014394b7c0

Deleted: ba600267bf1a82675eeee78a2e18c49306c46888ca3cf33f372be4b80334d4f0

Deleted: 6d79a1795e744a9c2c4409526f90c9711d96d0e944a7f485fc31acf7e44fb210

Deleted: cb6a06a808d4329b1bba405b9e3e733b1c379fb55979e8631e918f6c14c6023a

Deleted: 8d466d27bccad3502d579a2e0e6fc28fa8a46e32b5b453e7387a61eef7c1be8a

......

创建

由于

基于Container创建

启动一个容器

[root@localhost ~]# docker run -ti f01 /bin/bash
在启动的容器中安装ansible,git等工具

查询Container ID

[root@localhost ~]# docker ps

CONTAINER ID        IMAGE                COMMAND             CREATED             STATUS              PORTS               NAMES
52ec71824717        centos_6_5:ansible   "/bin/bash"         31 seconds ago      Up 30 seconds                           high_mcclintock

执行创建命令，返回值就是生成的Image ID
[root@localhost ~]# docker commit -m 'Ansible Image,and git, sample yml files' -a 'Eric.sunah' 52ec71824717 eric/ansible

6e3832e7c6e1aba47aefe1430c346a1dbf9a0454c37a907d293eaf7056d11d91
查看新的列表

[root@localhost ~]# docker images

REPOSITORY            TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
eric/ansible          latest              6e3832e7c6e1        2 minutes ago       629.7 MB

eric/ubuntu           latest              52671e55fb86        6 weeks ago         270.3 MB

centos_6_5            ansible             f01c1b138488        10 months ago       322.4 MB

chug/ubuntu12.10x64   latest              0b96c14dafcd        13 months ago       270.3 MB

另存为

命令：docker save [OPTIONS] IMAGE [IMAGE...]

参数：  -o, --output=""    Write to a file, instead of STDOUT

例子：

docker save -o centos6_ansible.tar eric/ansible

导入

 命令：docker load [OPTIONS]

参数：   -i, --input=""     Read from a tar archive file, instead of STDIN

例子：

docker load --input centos6_ansible.tar

上传

首先取个便于识别的TAG

[root@localhost ~]# docker tag 6e38 sun7545526/template:ansible

[root@localhost ~]# docker images

REPOSITORY            TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
sun7545526/template   ansible             6e3832e7c6e1        17 minutes ago      629.7 MB

eric/ansible          latest              6e3832e7c6e1        17 minutes ago      629.7 MB

执行上传命令，第一次上传的时候会要求输入用户名，密码，邮箱信息：

[root@localhost ~]# docker push sun7545526/template:ansible

The push refers to a repository [sun7545526/template] (len: 1)

Sending image list

Pushing repository sun7545526/template (1 tags)

511136ea3c5a: Image already pushed, skipping

1d6ebc5c68b1: Image already pushed, skipping

f01c1b138488: Image already pushed, skipping

6e3832e7c6e1: Image successfully pushed

Pushing tag for rev [6e3832e7c6e1] on {https://cdn-registry-1.docker.io/v1/repositories/sun7545526/template/tags/ansible}