GCP - get url dynamically of cloud run instances

Question

I have some cloud run that make http requests between them, the url is hardcoded in the code, is there a way to resolve the url by the cloud run name or another attribute?

Answer 1

Another possible solution could be using Method: namespaces.services.get.

If the service name is known to you, you can make a GET HTTP request in API calls to https://{endpoint}/apis/serving.knative.dev/v1/{name} where endpoint is one of the supported endpoints and name is the name of the Cloud Run service to retrieve. For Cloud Run (fully managed), replace {namespace_id} with the project ID or number. It takes the form namespaces/{namespace}/services/{service}.

Authorization requires the following IAM permission on the specified resource name : run.services.get

For example :

curl -X GET -H "Authorization: Bearer $(gcloud auth print-access-token)" https://us-central1-run.googleapis.com/apis/serving.knative.dev/v1/namespaces/your-project/services/your-service| grep url 

Output :

"url" :"https://cloud-run-xxxxxxxxxx-uc.a.run.app"

Answer 2

There is a gcloud command to do so. You could for instance get the url during your build and save it into an environment variable. The following command will get the complete url:

gcloud run services describe YOUR_CLOUDRUN_NAME --region=INSTANCE_REGION --platform=managed --format=yaml | grep -m 1 url | awk '{print $NF}'