Google Compute Engine: how to set hostname permanently?

Question

How do I set the hostname of an instance in GCE permanently? I can set it via hostname,but after reboot it is gone again.

I tried to feed in metadata (hostname:f.q.d

Answer 1

You can also create a simple startup-script to do the jobs:

$ gcloud compute instances add-metadata  --zone  --metadata startup-script='#! /bin/bash 
hostname '

Notice that if you already have a startup-script you need to add to the existing startup-script below command or you will replace all the startup-script:

$ hostname instance-name