mirror of
https://github.com/yeasy/docker_practice.git
synced 2024-12-25 14:38:54 +00:00
Remove the local repo case, add its content into the image and repository sections
This commit is contained in:
Baohua Yang
parent
71bcec05b7
commit
2a60b4ce7e
@ -28,7 +28,7 @@
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* [删除](container/rm.md)
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* [仓库](repository/README.md)
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* [Docker Hub](repository/dockerhub.md)
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* [仓库管理](repository/management.md)
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* [私有仓库](repository/management.md)
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* [数据管理](data_management/README.md)
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* [数据卷](data_management/volume.md)
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* [数据卷容器](data_management/container.md)
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@ -47,7 +47,6 @@
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* [编辑网络配置文件](advanced_network/config_file.md)
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* [实例：创建一个点到点连接](advanced_network/ptp.md)
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* [实战案例](cases/README.md)
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* [部署本地仓库](cases/local_repo.md)
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* [使用 Supervisor来管理进程](cases/supervisor.md)
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* [创建tomcat/weblogic集群](cases/tomcat.md)
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* [多台物理主机之间的容器互联](cases/container_connect.md)
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@ -59,6 +58,7 @@
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* [内核能力机制](security/kernel_capability.md)
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* [其它安全特性](security/other_feature.md)
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* [总结](security/summary.md)
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* [Dockerfile配置](dockerfile/README.md)
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* [底层实现](underly/README.md)
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* [基本架构](underly/arch.md)
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* [名字空间](underly/namespace.md)
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@ -66,7 +66,6 @@
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* [Union文件系统](underly/ufs.md)
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* [容器格式](underly/container_format.md)
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* [网络](underly/network.md)
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* [Dockerfile](dockerfile/README.md)
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* [附录一：命令查询](command/README.md)
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* [附录二：资源链接](resources/README.md)
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@ -1,106 +0,0 @@
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##部署本地仓库
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有时候使用Docker Hub这样的公共仓库可能不方便，用户可以创建一个本地仓库供私人使用。
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本节介绍如何创建部署本地仓库。
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###创建一个镜像
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创建镜像有很多方法，用户可以从Docker Hub获取一个，也可以利用本地文件系统创建一个。
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要从本地文件系统导入一个镜像，可以使用openvz（容器虚拟化的先锋技术）的模板来创建：
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openvz的模板下载地址为http://openvz.org/Download/templates/precreated。
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比如：先下载了一个ubuntu14.04的镜像，之后使用以下命令导入：
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```
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sudo cat ubuntu-14.04-x86_64-minimal.tar.gz |docker import - ubuntu:14.04
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```
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然后查看新导入的镜像。
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```
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docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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ubuntu 14.04 05ac7c0b9383 17 seconds ago 215.5 MB
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```
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###创建私有仓库
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创建私有仓库可以使用`docker-registry`工具。
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#### 系统自带
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在安装了Docker后，系统中就自带了`docker-registry`工具，可以运行
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```
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docker run -p 5000:5000 registry
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```
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这将使用官方的registry镜像来启动本地的私有仓库。可以通过指定参数来配置私有仓库位置，例如配置镜像存储到Amazon的S3服务。
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```
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docker run \
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-e SETTINGS_FLAVOR=s3 \
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-e AWS_BUCKET=acme-docker \
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-e STORAGE_PATH=/registry \
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-e AWS_KEY=AKIAHSHB43HS3J92MXZ \
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-e AWS_SECRET=xdDowwlK7TJajV1Y7EoOZrmuPEJlHYcNP2k4j49T \
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-e SEARCH_BACKEND=sqlalchemy \
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-p 5000:5000 \
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registry
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````
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#### 源码安装
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从[docker-registry](https://github.com/docker/docker-registry)项目下载源码并安装。
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```
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$ sudo apt-get install build-essential python-dev libevent-dev python-pip libssl-dev liblzma-dev libffi-dev
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$ sudo pip install .
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```
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`config/config_sample.yml`文件是配置文件。
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###在私有仓库上传、下载、搜索镜像
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创建好私有仓库之后，就可以使用`docker tag`来标记一个镜像，然后推送它到仓库，别的机器上就可以下载下来了。例如私有仓库地址为`192.168.7.26:5000`。
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先在本机查看已有的镜像。
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```
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$ sudo docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
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ubuntu 14.04 ba5877dc9bec 6 weeks ago 192.7 MB
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```
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使用`docker tag`将ba58这个镜像标记为`192.168.7.26:5000/test`（格式为`[REGISTRYHOST/][USERNAME/]NAME[:TAG]`）。
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```
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$ sudo docker tag ba58 192.168.7.26:5000/test
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root ~ # docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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ubuntu 14.04 ba5877dc9bec 6 weeks ago 192.7 MB
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ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
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192.168.7.26:5000/test latest ba5877dc9bec 6 weeks ago 192.7 MB
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```
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使用`docker push`上传标记的镜像。
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```
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$ sudo docker push 192.168.7.26:5000/test
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The push refers to a repository [192.168.7.26:5000/test] (len: 1)
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Sending image list
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Pushing repository 192.168.7.26:5000/test (1 tags)
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Image 511136ea3c5a already pushed, skipping
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Image 9bad880da3d2 already pushed, skipping
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Image 25f11f5fb0cb already pushed, skipping
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Image ebc34468f71d already pushed, skipping
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Image 2318d26665ef already pushed, skipping
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Image ba5877dc9bec already pushed, skipping
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Pushing tag for rev [ba5877dc9bec] on {http://192.168.7.26:5000/v1/repositories/test/tags/latest}
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```
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用curl查看仓库中的镜像。
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```
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$ curl http://192.168.7.26:5000/v1/search
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{"num_results": 7, "query": "", "results": [{"description": "", "name": "library/miaxis_j2ee"}, {"description": "", "name": "library/tomcat"}, {"description": "", "name": "library/ubuntu"}, {"description": "", "name": "library/ubuntu_office"}, {"description": "", "name": "library/desktop_ubu"}, {"description": "", "name": "dockerfile/ubuntu"}, {"description": "", "name": "library/test"}]}
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```
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这里可以看到`{"description": "", "name": "library/test"}`，表明镜像已经被成功上传了。
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现在可以到另外一台机器去下载这个镜像
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```
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$ sudo docker pull 192.168.7.26:5000/test
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Pulling repository 192.168.7.26:5000/test
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ba5877dc9bec: Download complete
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511136ea3c5a: Download complete
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9bad880da3d2: Download complete
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25f11f5fb0cb: Download complete
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ebc34468f71d: Download complete
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2318d26665ef: Download complete
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$ sudo docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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192.168.7.26:5000/test latest ba5877dc9bec 6 weeks ago 192.7 MB
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```
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@ -1,8 +1,8 @@
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##创建镜像
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别人的镜像虽然好，但不一定适合我们。
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我们可以对这些镜像做一些修改，有2个方法：利用现成的镜像进行修改或者利用dockerfile创建。
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###使用docker commit 来扩展一个镜像
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创建镜像有很多方法，用户可以从Docker Hub获取已有镜像并更新，也可以利用本地文件系统创建一个。
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### 修改已有镜像
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先使用下载的镜像启动容器。
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```
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$ sudo docker run -t -i training/sinatra /bin/bash
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@ -112,16 +112,14 @@ ADD myApp /var/www
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EXPOSE 80
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# the command to run
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CMD ["/usr/sbin/apachectl", "-D", "FOREGROUND"]
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```
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现在可以利用新创建的镜像来启动一个容器。
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```
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$ sudo docker run -t -i ouruser/sinatra:v2 /bin/bash
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root@8196968dac35:/#
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```
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还可以用tag命令来修改镜像的tag。
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还可以用`docker tag`命令来修改镜像的标签。
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```
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$ sudo docker tag 5db5f8471261 ouruser/sinatra:devel
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$ sudo docker images ouruser/sinatra
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@ -131,4 +129,19 @@ ouruser/sinatra devel 5db5f8471261 11 hours ago 446.7 MB
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ouruser/sinatra v2 5db5f8471261 11 hours ago 446.7 MB
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```
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更多用法，请参考dockerfile章节。
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*注：更多用法，请参考dockerfile章节。
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### 从本地文件系统导入
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要从本地文件系统导入一个镜像，可以使用openvz（容器虚拟化的先锋技术）的模板来创建：
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openvz的模板下载地址为http://openvz.org/Download/templates/precreated。
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比如：先下载了一个ubuntu14.04的镜像，之后使用以下命令导入：
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```
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sudo cat ubuntu-14.04-x86_64-minimal.tar.gz |docker import - ubuntu:14.04
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```
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然后查看新导入的镜像。
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```
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docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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ubuntu 14.04 05ac7c0b9383 17 seconds ago 215.5 MB
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```
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@ -17,7 +17,6 @@ subwiz/sinatra
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bmorearty/sinatra 0
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```
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可以看到返回了很多包含sinatra的镜像。其中包括镜像名字、描述、星级（表示该镜像的受欢迎程度）、是否官方创建、是否自动创建。
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官方的镜像是由stackbrew项目组创建和维护的，automated 资源允许用户验证镜像的来源和内容。
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@ -1 +1,97 @@
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##仓库管理
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##私有仓库
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有时候使用Docker Hub这样的公共仓库可能不方便，用户可以创建一个本地仓库供私人使用。
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本节介绍如何使用本地仓库。
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docker-registry是官方提供的工具，可以用于构建私有的镜像仓库。
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###安装docker-registry
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#### 系统自带
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在安装了Docker后，系统中就自带了`docker-registry`工具，可以运行
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```
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docker run -p 5000:5000 registry
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```
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这将使用官方的registry镜像来启动本地的私有仓库。可以通过指定参数来配置私有仓库位置，例如配置镜像存储到Amazon的S3服务。
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```
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docker run \
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-e SETTINGS_FLAVOR=s3 \
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-e AWS_BUCKET=acme-docker \
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-e STORAGE_PATH=/registry \
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-e AWS_KEY=AKIAHSHB43HS3J92MXZ \
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-e AWS_SECRET=xdDowwlK7TJajV1Y7EoOZrmuPEJlHYcNP2k4j49T \
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-e SEARCH_BACKEND=sqlalchemy \
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-p 5000:5000 \
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registry
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````
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#### 源码安装
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从[docker-registry](https://github.com/docker/docker-registry)项目下载源码安装。
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```
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$ sudo apt-get install build-essential python-dev libevent-dev python-pip libssl-dev liblzma-dev libffi-dev
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$ sudo pip install .
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```
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然后修改配置文件，主要修改`storage_path`到本地的存储仓库的路径，之后启动Web服务。
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```
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$ cp config/config_sample.yml config/config.yml
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$ #do some change to config.yml
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$ sudo /usr/bin/gunicorn --debug -k gevent -b 0.0.0.0:5000 -w 8 docker_registry.wsgi:application
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```
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此时使用访问本地的5000端口，看到输出docker-registry的版本信息说明运行成功。
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*注：`config/config_sample.yml`文件是示例配置文件。
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###在私有仓库上传、下载、搜索镜像
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创建好私有仓库之后，就可以使用`docker tag`来标记一个镜像，然后推送它到仓库，别的机器上就可以下载下来了。例如私有仓库地址为`192.168.7.26:5000`。
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先在本机查看已有的镜像。
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```
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$ sudo docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
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ubuntu 14.04 ba5877dc9bec 6 weeks ago 192.7 MB
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```
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使用`docker tag`将ba58这个镜像标记为`192.168.7.26:5000/test`（格式为`docker tag IMAGE[:TAG] [REGISTRYHOST/][USERNAME/]NAME[:TAG]`）。
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```
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$ sudo docker tag ba58 192.168.7.26:5000/test
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root ~ # docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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ubuntu 14.04 ba5877dc9bec 6 weeks ago 192.7 MB
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ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
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192.168.7.26:5000/test latest ba5877dc9bec 6 weeks ago 192.7 MB
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```
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使用`docker push`上传标记的镜像。
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```
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$ sudo docker push 192.168.7.26:5000/test
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The push refers to a repository [192.168.7.26:5000/test] (len: 1)
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Sending image list
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Pushing repository 192.168.7.26:5000/test (1 tags)
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Image 511136ea3c5a already pushed, skipping
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Image 9bad880da3d2 already pushed, skipping
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Image 25f11f5fb0cb already pushed, skipping
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Image ebc34468f71d already pushed, skipping
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Image 2318d26665ef already pushed, skipping
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Image ba5877dc9bec already pushed, skipping
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Pushing tag for rev [ba5877dc9bec] on {http://192.168.7.26:5000/v1/repositories/test/tags/latest}
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```
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用curl查看仓库中的镜像。
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```
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$ curl http://192.168.7.26:5000/v1/search
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{"num_results": 7, "query": "", "results": [{"description": "", "name": "library/miaxis_j2ee"}, {"description": "", "name": "library/tomcat"}, {"description": "", "name": "library/ubuntu"}, {"description": "", "name": "library/ubuntu_office"}, {"description": "", "name": "library/desktop_ubu"}, {"description": "", "name": "dockerfile/ubuntu"}, {"description": "", "name": "library/test"}]}
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```
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这里可以看到`{"description": "", "name": "library/test"}`，表明镜像已经被成功上传了。
|
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现在可以到另外一台机器去下载这个镜像
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```
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$ sudo docker pull 192.168.7.26:5000/test
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Pulling repository 192.168.7.26:5000/test
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ba5877dc9bec: Download complete
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511136ea3c5a: Download complete
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9bad880da3d2: Download complete
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25f11f5fb0cb: Download complete
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ebc34468f71d: Download complete
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2318d26665ef: Download complete
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$ sudo docker images
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REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
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192.168.7.26:5000/test latest ba5877dc9bec 6 weeks ago 192.7 MB
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```
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Loading…
Reference in New Issue
Block a user