I figured it out. The logs say failed to call 'Service Control', but this API was not yet enabled
on the GCP project. It is mentioned in the tutorial, but the following line:
In most cases, the gcloud endpoints services deploy
command enables these required services.
Is quite misleading, as I didn't use Terraform nor explicitly disabled that API. Maybe
we can update the tutorial to just include something like the following:
To be sure that all you APIs are enabled, run following three commands:
```
```
Then there is a nice copy-and-paste solution that guarantees that it will work without having to check
if it's already enabled or not.