story(https-load-balancer): validate cloud run service exists for given name

[Zaba505]

Description

As a dev, I want to add a data block to get the details for each cloud run service, so that during the planning phase any incorrect/non-existent names will cause an error.

This comes from a incorrect name being used for the default cloud run service but the https load balancer completely succeeds to deploy. There was also no obvious messaging in GCP Console explaining the disconnect because all requests to the load balancer would simply return a 404. The incorrect cloud run service name wasn't discovered as root cause until looking at the NEG and clicking the cloud run service link in the NEG led to an error page in the console.

Acceptance Criteria

• it fails if cloud run service does not exist for given name
• it succeeds if service does exist

Related Issues

No response