Can't connect to instance

Question

I'm completely locked out of the vm. I can't connect to serial and ssh gives publickey error. Any ideas how I can fix this?

What I tried:

• Set a startup script to create a new user with password
• Create another instance with a copy of the disk

Answer 1

I can access my instance again. What I did is install the gcloud sdk on my pc and try to ssh into it that way. It succesfully created a new user and I could use it again.