Retrieve project id from Google Compute Engine machine?

Question

I have two Google Cloud Platform projects (staging and production). I would like my application deployed on Google Compute Engine instance to automatically detected the project id. What is the way to do it?

Answer 1

You can query the metadata server programmatically for a variety of information, including the project id.

For the project id:

$ curl "http://metadata.google.internal/computeMetadata/v1/project/project-id" -H "Metadata-Flavor: Google"

This will return your project id, eg: my-gcp-project

Or if you need the numeric project id:

$ curl "http://metadata.google.internal/computeMetadata/v1/project/numeric-project-id" -H "Metadata-Flavor: Google"

This will return the numeric project id, eg: 0123456789