docker login failed

Sonatype Nexus Repository Best Practices
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1

Hello Team,

I have installed nexus-3.69.0-02 on standalone server. I have also created docker hosted Repositories URL:- https://testnexusrepo.xxx.com/repository/dockertest/

and I have also installed nginx on the same server.

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please check details of nginx file

server {
listen *:443 ssl http2;
server_name testnexusrepo.xxx.com;

    # allow large uploads of files - refer to nginx documentation
    client_max_body_size 1G;

    # optimize downloading files larger than 1G - refer to nginx doc before adjusting
    #proxy_max_temp_file_size 2G;

    ssl_certificate      /home/k8testadmin/testnexus.xxx.com.crt;
    ssl_certificate_key  /home/k8testadmin/testnexus.xxx.com.key;

    location / {
        proxy_pass http://[ip address of server]:8081/;
        proxy_set_header Host $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";
    }

    location /v2 {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto "https";
        proxy_pass http://testnexusrepo.xxx.com:8081/repository/dockertest/$request_uri;

}
location /v1 {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto “https”;
proxy_pass http://testnexusrepo.xxx.com:8081/repository/dockertest/$request_uri;
}
}

1:- My nginx service is running
2:- nexus service is also running

But when I try to login using below command its failing

root@master1:~# docker login https://testnexusrepo.XXX.com
Username: admin
Password:
time=“2024-09-20T13:49:22+05:30” level=info msg=“Error logging in to endpoint, trying next endpoint” error=“login attempt to https://testnexusrepo.XXX.com/v2/ failed with status: 502 Bad Gateway”
login attempt to https://testnexusrepo.XXX.com/v2/ failed with status: 502 Bad Gateway
root@master1:~#

Issue is because of this developer is not able to pull push the images.

Can anyone please help me what i am missing…

2

I’d suggest taking a look at the logs (nexus.log and request.log) from Nexus to see if there are errors which might indicate what is happening.

3

Hi Rahul,

Indeed the 502 indicates your issue is not with authentication. So please find out why it breaks. Did you try just “docker login testnexusrepo.xxx.com” without any other client settings?

Note: HTTPS is implied by default, no need to set this on login.