Docker学习--Docker仓库之私有仓库docker-registry的简单了解

一时失言乱红尘 2023-06-30 04:27 60阅读 0赞

由于网速和安全等方面的原因，有时候使用Docker Hub这样的公共仓库可能不方便。Docker官方提供了一个可以构建私有镜像仓库的工具，叫做`docker-registry`。

## 一、部署registry ##

Docker官方提供了一个搭建私有仓库的镜像registry，我们直接用docker run命令启动这个镜像即可。默认情况下，仓库会创建在/var/kib/registry目录下。可以通过-v参数将镜像文件存放在本地路径中。

[root@localhost ~]# mkdir -p /data/registry
    [root@localhost ~]# docker run -d -v /data/registry:/var/lib/registry -p 5000:5000 --restart=always --name myregistry registry
    Unable to find image 'registry:latest' locally
    latest: Pulling from library/registry
    c87736221ed0: Pull complete 
    1cc8e0bb44df: Pull complete 
    54d33bcb37f5: Pull complete 
    e8afc091c171: Pull complete 
    b4541f6d3db6: Pull complete 
    Digest: sha256:8004747f1e8cd820a148fb7499d71a76d45ff66bac6a29129bfdbfdc0154d146
    Status: Downloaded newer image for registry:latest
    f64f1248803d6bb4da8f51fc8c218856784d1900cc44604c6d21bce10c99d4ee
    [root@localhost ~]# docker ps -a
    CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
    f64f1248803d        registry            "/entrypoint.sh /etc…"   13 minutes ago      Up 13 minutes       0.0.0.0:5000->5000/tcp   myregistry

## 二、在客户机上推拉镜像 ##

由于从docker1.3.2版本开始，使用registry时，必须使用TLS保证其安全。我们不用https的话，需要在客户机中增加一个配置文件。

[root@docker ~]# vim /etc/docker/daemon.json
    { 
        "insecure-registries": ["192.168.0.152:5000"]
    }
    
    # 重启docker
    [root@docker ~]# systemctl restart docker

#### 1、推送镜像 ####

[root@docker ~]# docker images
    REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
    nginx               latest              231d40e811cd        4 weeks ago         126MB
    [root@docker ~]# docker tag nginx 192.168.0.152:5000/nginx:latest
    [root@docker ~]# docker push 192.168.0.152:5000/nginx:latest 
    The push refers to repository [192.168.0.152:5000/nginx]
    4fc1aa8003a3: Pushed 
    5fb987d2e54d: Pushed 
    831c5620387f: Pushed 
    latest: digest: sha256:189cce606b29fb2a33ebc2fcecfa8e33b0b99740da4737133cdbcee92f3aba0a size: 948

#### 2、查看仓库中的镜像 ####

[root@docker ~]# curl -XGET http://192.168.0.152:5000/v2/_catalog
    { "repositories":["nginx"]}

或者通过浏览器查看：  
![在这里插入图片描述][2020011510544692.png]

#### 3、拉取镜像 ####

[root@docker ~]# docker pull 192.168.0.152:5000/nginx:latest
    latest: Pulling from nginx
    000eee12ec04: Pull complete 
    eb22865337de: Pull complete 
    bee5d581ef8b: Pull complete 
    Digest: sha256:189cce606b29fb2a33ebc2fcecfa8e33b0b99740da4737133cdbcee92f3aba0a
    Status: Downloaded newer image for 192.168.0.152:5000/nginx:latest
    192.168.0.152:5000/nginx:latest

这里只是简单了解下docker-registry。

参考文章：  
[https://www.cnblogs.com/huanchupkblog/p/10843800.html][https_www.cnblogs.com_huanchupkblog_p_10843800.html]  
[http://www.eryajf.net/1939.html][http_www.eryajf.net_1939.html]  
[https://www.cnblogs.com/loveyous/p/11364289.html][https_www.cnblogs.com_loveyous_p_11364289.html]

[2020011510544692.png]: https://img-blog.csdnimg.cn/2020011510544692.png
[https_www.cnblogs.com_huanchupkblog_p_10843800.html]: https://www.cnblogs.com/huanchupkblog/p/10843800.html
[http_www.eryajf.net_1939.html]: http://www.eryajf.net/1939.html
[https_www.cnblogs.com_loveyous_p_11364289.html]: https://www.cnblogs.com/loveyous/p/11364289.html