I recently signed up for a GCP account. I set up WordPress on Google Compute Engine using Bitnami's installer and that seems to be working OK. I tried to get my domain to point to it and have not been successful. I have a 404 error. My domain registrar is NameCheap. The work probably involves using Google Cloud Shell, which I have done some of based on Bitnami's instructions, but have been reluctant to do more because I don't want to mess anything up. The domain is plantain.io. I don't believe it will take much effort to finish what I started with you remoting in or walking me through it. Attached is a screenshot of what I did in NameCheap.
The 2nd thing I need involves setting-up a Java-based rapid application development platform called AwareIM in Google Application Engine, probably as a subdomain ims.plantain.io. I imagine that involves downloading it from [url removed, login to view], setting up a VM and uploading it to the cloud, but I'm not sure.