Recommended execution and authentication of Google Cloud Functions

I'm wondering what the best approach is for the execution and authentication of Google Cloud Functions.The requests will be exclusively from a Compute Engine VM instance, although this could change in the future.The functions themselves are for third party integrations, which will probably make use of a VPC for database connections.the idea I'm tossing around is to send an authorisation authentication request, which directly inserts a token into the db for subsequent use, but I'm wondering if there is a better approach for communication between CF and CE.Ideally I wouldn't be setting up instances of express as the functions themselves are fairly lean.The reason the functions are decoupled from the app inside VM is mainly for seperation of concern but there are other business/personnel factors.Thanks

Submitted June 18, 2019 at 03:52PM by PerniciousAid