Securing communication between services
问题 I'm a noob in GCP and need some recommendations about how to roles and security work in the platform. I have GCP AppEngine project with several services. Some services need to communicate with other services using HTTP requests. I want to restrict access to some services and not sure about how can I do it. Do I need to create new roles for each restricted service? How can I authenticate/authorize the caller of the service (OAuth2, apikey...) I've tried to dive into GCP docs but documentation