Docker registry

本地运行一个registry

hippo@ubuntu:~$ docker run -d -p 5000:5000 --restart=always --name registry registry:2
hippo@ubuntu:~$ docker ps 
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
f53a7e7353ec        registry:2          "/bin/registry serve "   33 seconds ago      Up 30 seconds       0.0.0.0:5000->5000/tcp   registry

给镜像打标签,并push到registry

hippo@ubuntu:~$ docker pull ubuntu
hippo@ubuntu:~$ docker tag ubuntu localhost:5000/ubuntu
hippo@ubuntu:~$ docker images
REPOSITORY              TAG                 IMAGE ID            CREATED             SIZE
localhost:5000/ubuntu   latest              2fa927b5cdd3        2 days ago          122 MB
ubuntu                  latest              2fa927b5cdd3        2 days ago          122 MB
registry                2                   34bccec54793        11 days ago         171.2 MB
hippo@ubuntu:~$ docker push localhost:5000/ubuntu

存储

默认registry的镜像数据存放在匿名数据卷里,可以通过docker inspect查看

我们可以通过-v来指定存放路径

docker run -d -p 5000:5000 --restart=always --name registry -v `pwd`/data:/var/lib/registry registry:2

通过域名访问registry

如果希望通过将registry放在互联网上访问,则需要配置ssl,并且为了安全,最好配置访问认证.

可以通过letsencrypt来获取个证书.

运行:

# docker run -d -p 5000:5000 --restart=always --name registry \
-v /etc/letsencrypt/archive/registry.xxxx.com/:/certs \
-e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/fullchain1.pem \
-e REGISTRY_HTTP_TLS_KEY=/certs/privkey1.pem \
registry:2

其他主机上执行push操作:

[root@srv00 ~]# docker tag ubuntu registry.xxxx.com:5000/ubuntu
[root@srv00 ~]# docker push registry.xxxx.com:5000/ubuntu
...

push成功则验证完成

添加访问认证

创建密码文件

[root@iZ23mynm1ezZ ~]# mkdir auth
[root@iZ23mynm1ezZ ~]# docker run --rm --entrypoint htpasswd registry:2 -Bbn hippo password > auth/htpasswd

运行registry要多加些参数,(删除原先的容器registry,注意备份镜像)

[root@iZ23mynm1ezZ ~]# docker stop registry	
[root@iZ23mynm1ezZ ~]# docker rm -v registry	<===!!备份!!
[root@iZ23mynm1ezZ ~]# docker run -d -p 5000:5000 --restart=always --name registry \
-v /etc/letsencrypt/archive/registry.xxxx.com/:/certs \
-e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/fullchain1.pem \
-e REGISTRY_HTTP_TLS_KEY=/certs/privkey1.pem \
-v `pwd`/auth:/auth \
-e "REGISTRY_AUTH=htpasswd" \
-e "REGISTRY_AUTH_HTPASSWD_REALM=Registry Realm" \
-e REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd \
registry:2

到另一台机器上验证下

[root@srv00 ~]# docker push registry.xxxx.com:5000/ubuntu
The push refers to a repository [registry.xxxx.com:5000/ubuntu]
5f70bf18a086: Image push failed 
a3b5c80a4eba: Image push failed 
7f18b442972b: Image push failed 
3ce512daaf78: Image push failed 
7aae4540b42d: Image push failed 
no basic auth credentials

直接push失败,需要先登录

[root@srv00 ~]# docker login registry.xxxx.com:5000
Username: hippo
Password: 
Login Succeeded[root@srv00 ~]# docker push registry.xxxx.com:5000/ubuntu
The push refers to a repository [registry.xxxx.com:5000/ubuntu]
5f70bf18a086: Pushed 
a3b5c80a4eba: Pushed 
7f18b442972b: Pushed 
3ce512daaf78: Pushed 
7aae4540b42d: Pushed 
latest: digest: sha256:92c80b28023de63d528c722c295bbe82a20722e3fd7a9b4f14a688bea2cacdac size: 1356

也可以通过前端通过nginx,apache等当反向代理来实现ssl及访问认证.

通过Compose管理 docker启动参数多了之后,每次运行都比较复杂麻烦..可以通过docker compose来管理. 具体不细说了.

//END

来源：oschina

链接：https://my.oschina.net/u/204921/blog/685500

标签

Docker

registry