Google cloud with terraform

[gcloudLearning]

I need to take vm snapshot programmatically by reading vmid from a storage bucket .

first task is reading from Storage bucket (vm detail) ,

next is to run vm snapshot (using terrform) -

I need to do it for each project , what are different way to do this , any suggested one.

for reading the storage bucket - i need to write some scripts/functions, . please suggest how to perform these 2 task