3-docker 私有仓库-优快云博客

本文详细介绍如何搭建私有的Docker仓库，包括下载registry镜像、配置本地存储路径、解决推送镜像过程中出现的问题，以及如何查询和管理私有仓库中的镜像。

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安装docker 参见以前文章

私有仓库的搭建

1：下载registry镜像

docker pull registry

2：通过该镜像启动容器

docker run -d -p 5000:5000 registry

默认情况下，会将仓库存放于容器内的/tmp/registry目录下，这样如果容器被删除，则存放于容器中的镜像也会丢失，所以我们一般情况下会指定本地一个目录挂载到容器内的/tmp/registry下，如下：

docker run -d -p 5000:5000 -v /opt/data/registry:/tmp/registry registry

3：测试push到该仓库

下载nginx镜像

docker pull nginx

修改tag

doker tag nginx 10.1.4.54:5000/nginx

上传到仓库

doker push 10.1.4.54:5000/nginx

但是遇到了错误

[root@10-1-4-88 ~]# docker push 10.1.4.54:5000/nginx

The push refers to a repository [10.1.4.54:5000/nginx]

Get https://10.1.4.54:5000/v2/: http: server gave HTTP response to HTTPS client

解决办法：

[root@10-1-4-88 ~]# vi /etc/docker/daemon.json

{ "insecure-registries":["10.1.4.54:5000"] }

重起服务

[root@10-1-4-88 ~]# systemctl restart docker

在次提交

[root@10-1-4-88 ~]# docker push 10.1.4.54:5000/nginx

The push refers to a repository [10.1.4.54:5000/nginx]

54b25ecf81f0: Pushed 

110566462efa: Pushed 

305e2b6ef454: Pushed 

24e065a5f328: Pushed 

latest: digest: sha256:8f0365ebf863a78c72154bdc6af687c5c78221cf9b15ee6a0cab9a935405b38f size: 1155

4：查询私有仓库镜像

docker search 10.1.4.54:5000/

遇到错误

[root@10-1-4-88 ~]# docker search 10.1.4.54:5000/

Error response from daemon: Unexpected status code 404

查看下来不能使用docker search

解决办法：

但是通过v2 的api 可以实现相同的目的

[root@10-1-4-88 ~]# curl http://10.1.4.54:5000/v2/_catalog

{"repositories":["nginx"]}

[root@10-1-4-88 ~]# curl http://10.1.4.54:5000/v2/nginx/tags/list

{"name":"nginx","tags":["latest"]}

5：删除本地镜像在从私有仓库下载 pull

查询本地images

[root@10-1-4-88 ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

10.1.4.54:5000/nginx latest 1628545933ab About an hour ago 108MB

nginx latest 1628545933ab About an hour ago 108MB

<none> <none> 1717b3a9873b About an hour ago 108MB

nginx <none> da5939581ac8 3 weeks ago 108MB

删除10.1.4.54:5000/nginx

[root@10-1-4-88 ~]# docker rmi 10.1.4.54:5000/nginx

Untagged: 10.1.4.54:5000/nginx:latest

Untagged: 10.1.4.54:5000/nginx@sha256:8f0365ebf863a78c72154bdc6af687c5c78221cf9b15ee6a0cab9a935405b38f

再次查询本地images

[root@10-1-4-88 ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

nginx latest 1628545933ab About an hour ago 108MB

<none> <none> 1717b3a9873b About an hour ago 108MB

nginx <none> da5939581ac8 3 weeks ago 108MB

从私有仓库下载镜像10.1.4.54:5000

[root@10-1-4-88 ~]# docker pull 10.1.4.54:5000/nginx

Using default tag: latest

latest: Pulling from nginx

Digest: sha256:8f0365ebf863a78c72154bdc6af687c5c78221cf9b15ee6a0cab9a935405b38f

Status: Downloaded newer image for 10.1.4.54:5000/nginx:latest

再次查看镜像

[root@10-1-4-88 ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE

10.1.4.54:5000/nginx latest 1628545933ab About an hour ago 108MB

nginx latest 1628545933ab About an hour ago 108MB

<none> <none> 1717b3a9873b About an hour ago 108MB

nginx <none> da5939581ac8 3 weeks ago 108MB

[root@10-1-4-88 ~]# 