mirror of
https://github.com/yeasy/docker_practice.git
synced 2024-12-01 02:38:54 +00:00
160 lines
7.1 KiB
Markdown
160 lines
7.1 KiB
Markdown
##私有仓库
|
||
|
||
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。
|
||
|
||
本节介绍如何使用本地仓库。
|
||
|
||
`docker-registry`是官方提供的工具，可以用于构建私有的镜像仓库。
|
||
###安装运行docker-registry
|
||
#### 容器运行
|
||
在安装了Docker后，可以通过获取官方registry镜像来运行。
|
||
```
|
||
$ sudo docker run -d -p 5000:5000 registry
|
||
```
|
||
这将使用官方的registry镜像来启动本地的私有仓库。
|
||
用户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
|
||
```
|
||
$ sudo docker run \
|
||
-e SETTINGS_FLAVOR=s3 \
|
||
-e AWS_BUCKET=acme-docker \
|
||
-e STORAGE_PATH=/registry \
|
||
-e AWS_KEY=AKIAHSHB43HS3J92MXZ \
|
||
-e AWS_SECRET=xdDowwlK7TJajV1Y7EoOZrmuPEJlHYcNP2k4j49T \
|
||
-e SEARCH_BACKEND=sqlalchemy \
|
||
-p 5000:5000 \
|
||
registry
|
||
````
|
||
此外，还可以指定本地路径（如`/home/user/registry-conf`）下的配置文件。
|
||
```
|
||
$ sudo docker run -d -p 5000:5000 -v /home/user/registry-conf:/registry-conf -e DOCKER_REGISTRY_CONFIG=/registry-conf/config.yml registry
|
||
```
|
||
默认情况下，仓库会被创建在容器的`/tmp/registry`下。可以通过`-v`参数来将镜像文件存放在本地的指定路径。
|
||
例如下面的例子将上传的镜像放到`/opt/data/registry`目录。
|
||
```
|
||
$ sudo docker run -d -p 5000:5000 -v /opt/data/registry:/tmp/registry registry
|
||
```
|
||
|
||
#### 本地安装
|
||
对于Ubuntu或CentOS等发型包，可以直接通过源安装。
|
||
* Ubuntu
|
||
```
|
||
$ sudo apt-get install -y build-essential python-dev libevent-dev python-pip liblzma-dev
|
||
$ sudo pip install docker-registry
|
||
```
|
||
* CentOS
|
||
```
|
||
$ sudo yum install -y python-devel libevent-devel python-pip gcc xz-devel
|
||
$ sudo python-pip install docker-registry
|
||
```
|
||
|
||
也可以从[docker-registry](https://github.com/docker/docker-registry)项目下载源码进行安装。
|
||
```
|
||
$ sudo apt-get install build-essential python-dev libevent-dev python-pip libssl-dev liblzma-dev libffi-dev
|
||
$ git clone https://github.com/docker/docker-registry.git
|
||
$ cd git-registry
|
||
$ sudo pip install .
|
||
```
|
||
然后修改配置文件，主要修改dev模板段的`storage_path`到本地的存储仓库的路径。
|
||
```
|
||
$ cp config/config_sample.yml config/config.yml
|
||
```
|
||
之后启动Web服务。
|
||
```
|
||
$ sudo gunicorn -c contrib/gunicorn.py docker_registry.wsgi:application
|
||
```
|
||
或者
|
||
```
|
||
$ sudo gunicorn --access-logfile - --error-logfile - -k gevent -b 0.0.0.0:5000 -w 4 --max-requests 100 docker_registry.wsgi:application
|
||
```
|
||
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。
|
||
|
||
*注：`config/config_sample.yml`文件是示例配置文件。
|
||
|
||
###在私有仓库上传、下载、搜索镜像
|
||
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`。
|
||
|
||
先在本机查看已有的镜像。
|
||
```
|
||
$ sudo docker images
|
||
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
|
||
ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
|
||
ubuntu 14.04 ba5877dc9bec 6 weeks ago 192.7 MB
|
||
```
|
||
|
||
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]`）。
|
||
```
|
||
$ sudo docker tag ba58 192.168.7.26:5000/test
|
||
root ~ # docker images
|
||
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
|
||
ubuntu 14.04 ba5877dc9bec 6 weeks ago 192.7 MB
|
||
ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
|
||
192.168.7.26:5000/test latest ba5877dc9bec 6 weeks ago 192.7 MB
|
||
```
|
||
使用`docker push`上传标记的镜像。
|
||
```
|
||
$ sudo docker push 192.168.7.26:5000/test
|
||
The push refers to a repository [192.168.7.26:5000/test] (len: 1)
|
||
Sending image list
|
||
Pushing repository 192.168.7.26:5000/test (1 tags)
|
||
Image 511136ea3c5a already pushed, skipping
|
||
Image 9bad880da3d2 already pushed, skipping
|
||
Image 25f11f5fb0cb already pushed, skipping
|
||
Image ebc34468f71d already pushed, skipping
|
||
Image 2318d26665ef already pushed, skipping
|
||
Image ba5877dc9bec already pushed, skipping
|
||
Pushing tag for rev [ba5877dc9bec] on {http://192.168.7.26:5000/v1/repositories/test/tags/latest}
|
||
```
|
||
用curl查看仓库中的镜像。
|
||
```
|
||
$ curl http://192.168.7.26:5000/v1/search
|
||
{"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"}]}
|
||
```
|
||
这里可以看到`{"description": "", "name": "library/test"}`，表明镜像已经被成功上传了。
|
||
|
||
现在可以到另外一台机器去下载这个镜像。
|
||
```
|
||
$ sudo docker pull 192.168.7.26:5000/test
|
||
Pulling repository 192.168.7.26:5000/test
|
||
ba5877dc9bec: Download complete
|
||
511136ea3c5a: Download complete
|
||
9bad880da3d2: Download complete
|
||
25f11f5fb0cb: Download complete
|
||
ebc34468f71d: Download complete
|
||
2318d26665ef: Download complete
|
||
$ sudo docker images
|
||
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
|
||
192.168.7.26:5000/test latest ba5877dc9bec 6 weeks ago 192.7 MB
|
||
```
|
||
|
||
可以使用[这个脚本](https://github.com/yeasy/docker_practice/raw/master/_local/push_images.sh)批量上传本地的镜像到注册服务器中，默认是本地注册服务器`127.0.0.1:5000`。例如：
|
||
```
|
||
$ wget https://github.com/yeasy/docker_practice/raw/master/_local/push_images.sh; sudo chmod a+x push_images.sh
|
||
$ ./push_images.sh ubuntu:latest centos:centos7
|
||
The registry server is 127.0.0.1
|
||
Uploading ubuntu:latest...
|
||
The push refers to a repository [127.0.0.1:5000/ubuntu] (len: 1)
|
||
Sending image list
|
||
Pushing repository 127.0.0.1:5000/ubuntu (1 tags)
|
||
Image 511136ea3c5a already pushed, skipping
|
||
Image bfb8b5a2ad34 already pushed, skipping
|
||
Image c1f3bdbd8355 already pushed, skipping
|
||
Image 897578f527ae already pushed, skipping
|
||
Image 9387bcc9826e already pushed, skipping
|
||
Image 809ed259f845 already pushed, skipping
|
||
Image 96864a7d2df3 already pushed, skipping
|
||
Pushing tag for rev [96864a7d2df3] on {http://127.0.0.1:5000/v1/repositories/ubuntu/tags/latest}
|
||
Untagged: 127.0.0.1:5000/ubuntu:latest
|
||
Done
|
||
Uploading centos:centos7...
|
||
The push refers to a repository [127.0.0.1:5000/centos] (len: 1)
|
||
Sending image list
|
||
Pushing repository 127.0.0.1:5000/centos (1 tags)
|
||
Image 511136ea3c5a already pushed, skipping
|
||
34e94e67e63a: Image successfully pushed
|
||
70214e5d0a90: Image successfully pushed
|
||
Pushing tag for rev [70214e5d0a90] on {http://127.0.0.1:5000/v1/repositories/centos/tags/centos7}
|
||
Untagged: 127.0.0.1:5000/centos:centos7
|
||
Done
|
||
```
|
||
|