mirror of
https://github.com/yeasy/docker_practice.git
synced 2024-12-26 15:06:18 +00:00
115 lines
4.9 KiB
Markdown
115 lines
4.9 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。
|
||
```bash
|
||
$ 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 S3 服务。
|
||
```bash
|
||
$ 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。
|
||
```bash
|
||
$ 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 `/var/lib/registry `（v1 中是`/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。
|
||
```bash
|
||
$ docker run -d \
|
||
-p 5000:5000 \
|
||
-v /opt/data/registry:/var/lib/registry \
|
||
registry
|
||
```
|
||
|
||
### 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。
|
||
```bash
|
||
$ 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]`）。
|
||
```bash
|
||
$ 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。
|
||
```bash
|
||
$ 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。
|
||
```bash
|
||
$ 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。
|
||
```bash
|
||
$ 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
|
||
$ 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 `docker-compose push` 批量上传本地的镜像到私有 Docker 仓库，这里以 `127.0.0.1:5000` 为例：
|
||
|
||
编写 `docker-compose.yml` 文件
|
||
|
||
```yaml
|
||
version: "3.4"
|
||
services:
|
||
|
||
ubuntu:
|
||
image: 127.0.0.1:5000/ubuntu:latest
|
||
centos:
|
||
image: 127.0.0.1:5000/centos:centos7
|
||
```
|
||
|
||
在该文件路径下执行 `docker-compose push` 即可将上面的两个镜像上传到私有仓库中。
|