Fetch-url-http-3a-2f-2fmetadata.google.internal-2fcomputemetadata-2fv1-2finstance-2fservice Accounts-2f | !link!

http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/ When you GET this URL (with the correct header), the metadata server returns a list of service accounts attached to the instance. default/ my-custom-sa@project-id.iam.gserviceaccount.com/ Each entry is a directory containing metadata about that service account. Typically, every GCE instance has at least the default compute engine service account . What lies inside each service account directory? If you access:

http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token http://metadata

By understanding the correct, decoded URL, the required Metadata-Flavor: Google header, and the security implications of accessing the service account token, developers can build robust, secure applications on Google Cloud. the required Metadata-Flavor: Google header

response = requests.get(METADATA_URL, headers=headers) response.raise_for_status() token_data = response.json() access_token = token_data["access_token"] const axios = require('axios'); const url = 'http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token'; const headers = { 'Metadata-Flavor': 'Google' }; developers can build robust