Cannot login in RedHat Openshift webUI

[Oresivi-3]

In Chapter 1.Introduction to Kubernetes and Openshift, I am trying to navigate the Openshift webconsole (first Guided exercise), I verify cluster state successfully, run the whoami cmd

but when I try to login the URL 

https://console-openshift-console.apps.ocp4.example.com

I always fail, with error: This site can't be reached (DNS_PROBE_FINISHED_NXDOMAIN).

I cleared cache, tried both GC and Firefox browsers, stop/delete/start the lab environment, always fail to open the web console in order proceed to the next exercises.

Please, for your support. Thank you in advance.

[ARoumiantsev · Accepted solution]

Hi @Oresivi-3 

Please avoid typical issue: Do not use local browser, but ONLY workstation browser!

Good luck  

[Oresivi-3]

That made it! Thanks for the fast response!

[Chetan_Tiwary_]

@Oresivi-3 Go to workstation VM console and use the firefox browser to login to the OCP web console. 

[mitoribi]

Hi, good day.

How it was resolved?Im facing the same problem. 

I have tried with firefox within the workstation and it is not stable, Im getting continuous messages "Wait/Force Quiting" so I finally need to stop that firefox. I have also tried some SSH tunnel options without sucess.

Appreciate any help.

Thanks so much.

[TudorRaduta]

@mitoribi if the issue continues, I’d recommend opening a support case so our support team can check it directly in your lab and help you fix it.

[Chetan_Tiwary_]

@mitoribi There is no  bug or issue with the lab as I am unable to reproduce this issue in our labs. 

You can check if your OCP cluster is up or not before you try to login to the console. 

If you are unable to get past this issue - please raise a support case so that we can check it in your lab.

[mitoribi]

Hi, 

I managed to sort it out by following this procedure:

I set this in my /etc/hosts:

192.168.XX.YY console-openshift-console.apps.ocp4.example.com

192.168.XX.YY oauth-openshift.apps.ocp4.example.com

And then open a SSL tunnel in my latptop:

sshuttle -r student@172.25.XX.YY --ssh-cmd "ssh -i /home/myuser/.ssh/rht_classroom.rsa -J cloud-user@public_ip:22022 -p 53009" 0.0.0.0/0

And then in the browser:

https://console-openshift-console.apps.ocp4.example.com

Thanks so much

[Travis]

@mitoribi -

Yes, most people don't have SSH access so you were hit by the DNS not working since you were attempting to launch the WebUI over your home computer instead of workstation's copy of Firefox. Keep in mind, apps that you deploy with Routes/Services also won't be able to come up and if you are using the /etc/hosts file trick, you will need to add those FQDNs there to the same IPs so that you can get to the app. For example, if you are doing an APP called helloworld, and you let the route be created, it might be ...

192.168.XX.YY helloworld.apps.ocp4.example.com

That needs added. Whatever the OCP Route is where it gives you the URL, it will be the same IP address as the console.

[mitoribi]

Thanks so much for the information @Travis 

What is the procedure to leverage the workstation's copy of Firefox?

When I tried that through a SSH tunnel (ssh -Y or -X), the workstation Firefox browser was not stable and i got continuous messages "Force to quit" or "Wait" and I was unable to paste the web console URL in that browser.

Thanks.