问题
I'm wondering if a container deployed on cloud run can somehow obtain its own service url or is it impossible?
I'm wanting to know this because I want a cloud run worker that creates google cloud tasks for itself.
If it is possible, how can it be done?
回答1:
If you know the service name, you can make a GET HTTP request to https://{endpoint}/apis/serving.knative.dev/v1/{name}
Method: namespaces.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
"url": "https://cloud-run-xxxxxxxxxx-uc.a.run.app"
回答2:
I wrote an article to self call Cloud Run service to prevent Cold Start. The code that I wrote in Go is in my github
The idea is to call the metadata server to find the project number and the region (like this you don't have this hardcoded or in env var), and then you call the namespace API.
If you need help to write it in another language, let me know.
来源：https://stackoverflow.com/questions/65628822/google-cloud-run-can-a-service-know-its-own-url