I've created on Google Cloud Platform a new service with the help of the Serverless framework. The service contains a Cloud Function that provides a GC url:
https://europe-west3-service-12345.cloudfunctions.net/endpoint
We would like to use our own DNS, let's say acme.com, with our own SSL certificate so we can access to:
https://service.acme.com/endpoint
Our DNS hosted zone is managed on AWS Route 53.
I've tried to naively create a CNAME to associate service.acme.com
to europe-west3-service-12345.cloudfunctions.net
but it ends by an error 404 from Google when accessing to https://service.acme.com/endpoint