Does anyone know how to recover username, and reset password for Jenkins lab created from kodekloud terminal?
Which lab (I assume in the DevSecOps course) are you talking about? A link would help a great deal. I tried the Jenkins Install lab, which actually failed to start for me 
I can get into the Jenkins Pipeline lab. If so: the credentials are in the README.md file that’s displaying in the on-line VSCode window. You just need to scroll down a bit.
I’ve just tried it again, and it works now for me. But the answer is likely as I stated.