The following configuration settings are required: 

projectId

GCP Project ID to scan

my-gcp-project

privateKeyId

Private key identifier from service account

5094569f8086a9ae...

privateKey

Private key in PEM format

-----BEGIN PRIVATE KEY-----...

clientEmail

Service account email address

discovery@my-project.iam.gserviceaccount.com

clientId

OAuth2 client ID

104319692654298486174

clientX509CertUrl

OAuth2 client certificate URL

https://www.googleapis.com/robot/v1/metadata/x509/...