I am doing a cloud architecture assessment for a customer with a medium to large scale deployment on GCP . The company has gone through a mergers, acquisitions , change of personnel etc and hence they do not have an architecture diagram that I can use a reference to do my assessment.
My question is looking at the GCP asset inventory deployed in a project , is it possible to reverse engineer using any automated tool (i am not expecting a 100% accurate diagram for obvious reasons) or is it more of a manual effort going through the services and trying to link them? For example consider a GCE MIG deployment. I can look at the properties of the MIG and trace back to arrive at a target HTTP L7 load balancer fronting the MIG. Along the way i can also look at what SSL certs are used.
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