我目前正在尝试将 nexus3 配置为 docker 镜像的私有(private)注册表，并使用 nginx 作为反向代理。在 nexus 中创建了 3 个存储库，即 NexusDockerProxy(docker 代理)、NexusDockerHosted(docker 托管，http 端口:4444)和 NexusDockerGroup(docker 组，http 端口:5555)，同时添加了托管和代理。
Nexus 配置了 nginx，我们使用的是自签名证书，并将其添加到 nginx 配置文件中。
server {
proxy_send_timeout 120;
proxy_read_timeout 300;
proxy_buffering off;
tcp_nodelay on;
server_tokens off;
client_max_body_size 1G;
listen 80;
server_name server908.int.org.com;
location / {
rewrite ^(.*) https://server908.int.org.com$1 permanent;
}
}
server {
listen 443;
server_name server908.int.org.com;
keepalive_timeout 60;
ssl on;
ssl_certificate /etc/ssl/certs/orgnexus.crt;
ssl_certificate_key /etc/ssl/certs/orgnexus.key;
ssl_ciphers HIGH:!kEDH:!ADH:!MD5:@STRENGTH;
ssl_session_cache shared:TLSSSL:16m;
ssl_session_timeout 10m;
ssl_prefer_server_ciphers on;
location / {
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto "https";
proxy_pass http://server908.int.org.com:8082;
proxy_read_timeout 90;
}
}
# correlates to your nexus http connector
server {
listen 6666;
server_name server908.int.org.com;
keepalive_timeout 60;
ssl on;
ssl_certificate /etc/ssl/certs/orgnexus.crt;
ssl_certificate_key /etc/ssl/certs/orgnexus.key;
ssl_ciphers HIGH:!kEDH:!ADH:!MD5:@STRENGTH;
ssl_session_cache shared:TLSSSL:16m;
ssl_session_timeout 10m;
ssl_prefer_server_ciphers on;
client_max_body_size 1G;
chunked_transfer_encoding on;
location / {
access_log /var/log/nginx/docker.log;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto "https";
#proxy_pass http://server908.int.org.com:4444;
proxy_pass http://server908.int.org.com:5555;
proxy_read_timeout 90;
}
}
我们用“/etc/default/docker”文件评论了下面的条目。
http_proxy=http://x.x.x.x:3128
https_proxy=http://x.x.x.x:3128
登录也成功
[root@server446 ~]$ docker login -u admin -p admin123 server908.int.org.com:6666
Login Succeeded
搜索图像也可以正常工作。
[dockertest@server446 ~]$ docker search server908.int.org.com:6666/fedora
INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED
org.com server908.int.org.com:6666/fedora Official Docker builds of Fedora 544 [OK]
org.com server908.int.org.com:6666/fedora/apache 33 [OK]
org.com server908.int.org.com:6666/fedora/couchdb 32 [OK]
org.com server908.int.org.com:6666/fedora/firefox 23 [OK]
org.com server908.int.org.com:6666/fedora/mariadb 23 [OK]
org.com server908.int.org.com:6666/fedora/qpid 20 [OK]
org.com server908.int.org.com:6666/fedora/redis 20 [OK]
org.com server908.int.org.com:6666/fedora/ssh 20 [OK]
org.com server908.int.org.com:6666/fedora/nginx 19 [OK]
org.com server908.int.org.com:6666/fedora/memcached 18 [OK]
org.com server908.int.org.com:6666/fedora/rabbitmq 18 [OK]
org.com server908.int.org.com:6666/fedora/earthquake 17 [OK]
org.com server908.int.org.com:6666/fedora/nodejs 15 [OK]
org.com server908.int.org.com:6666/mattsch/fedora-nzbhydra Fedora NZBHydra 4 [OK]
org.com server908.int.org.com:6666/dockingbay/fedora-rust Trusted build of Rust programming language... 3 [OK]
org.com server908.int.org.com:6666/gluster/gluster-fedora Official GlusterFS image [ Fedora ( latest... 3 [OK]
org.com server908.int.org.com:6666/startx/fedora Simple container used for all startx based... 3 [OK]
org.com server908.int.org.com:6666/eminguez/flexget-fedora Flexget Docker Container based in Fedora t... 2 [OK]
org.com server908.int.org.com:6666/eminguez/transmission-fedora Transmission Fedora (fedora:latest) docker... 2 [OK]
org.com server908.int.org.com:6666/fedora/owncloud 2 [OK]
org.com server908.int.org.com:6666/gdepuille/fedora-ansible Image to test Ansible playbook with Fedora 2 [OK]
org.com server908.int.org.com:6666/kumarpraveen/fedora-sshd Fedora docker file for ssh service which m... 2 [OK]
org.com server908.int.org.com:6666/vbatts/fedora-varnish https://github.com/vbatts/laughing-octo/tr... 2 [OK]
org.com server908.int.org.com:6666/darksheer/fedora Hourly update latest Fedora Image 1 [OK]
org.com server908.int.org.com:6666/darksheer/fedora22 Base Fedora 22 Image -- Updated hourly
1 [OK]
但是我们在尝试提取图像时面临以下问题。
[dockertest@server446 ~]$ docker pull server908.int.org.com:6666/fedora
Using default tag: latest
Trying to pull repository server908.int.org.com:6666/fedora ...
latest: Pulling from server908.int.org.com:6666/fedora
691bc14ee274: Pulling fs layer
error pulling image configuration: unknown blob
使用关系日志，我看到下面的认证错误。
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387) [na:1.8.0_91]
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) [na:1.8.0_91]
at sun.security.validator.Validator.validate(Validator.java:260) [na:1.8.0_91]
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) [na:1.8.0_91]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) [na:1.8.0_91]
不确定它在寻找什么证书以及在哪里
同样通过 push 我们得到 404 错误，如下所示。
[dockertest@server446 ~]$ docker push server908.int.org.com:6666/maven:1
The push refers to a repository [server908.int.org.com:6666/maven]
701925f78142: Layer already exists
78bb4fee972f: Layer already exists
e1300844f726: Layer already exists
bfee0515af91: Preparing
2afcf4c557eb: Preparing
72cfa243711c: Waiting
9bf603e17b04: Waiting
70b22baddf90: Waiting
596ecbaf3ba4: Waiting
445ed6ee6867: Waiting
c59fa6cbcbd9: Waiting
8d4d1ab5ff74: Waiting
error parsing HTTP 404 response body: invalid character '<' looking for beginning of value:
当 proxy_pass 设置为“http://server908.int.org.com:4444”，即 NexusDockerHosted(docker 托管，http 端口:4444，我们可以使用 nexus 登录、推送和拉取，但无法从互联网 docker hub 拉取新图像。我们得到以下错误。
[root@server446 ~]$ docker pull server908.int.org.com:6666/centos
Using default tag: latest
Trying to pull repository server908.int.org.com:6666/centos ...
manifest unknown: manifest unknown
关系文档没有提供任何明确的说明。我是否在 nginx 或 docker 或 nexus 中遗漏了一些重要的东西。我指的是以下引用资料。
https://stackoverflow.com/questions/39148462/docker-login-not-working-with-nexus-3-private-registry
Nexus3 Documentation for Docker Hosting
任何获得 docker pull 的帮助都会非常有帮助，谢谢。
最佳答案
我不相信 Nexus 是通过缓存拉动的。您将直接从集线器中拉出。然后，您可以标记您的图像并将其推送到您想要的本地注册表。
docker pull centos
docker tag centos local.registry:5000/centos
docker push local.registry:5000/centos
关于nginx - docker pull push 登录成功后无法正常工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44491863/