The traditional method is simpler to set up but comes with security and management challenges. Service account impersonation offers enhanced security and access control but requires more initial setup and configuration. Ultimately, the best approach depends on your specific requirements and security posture.
Service Account Impersonation
Service account impersonation is a newer feature in GCP that allows one service account to act as another service account. This can simplify access control and enhance security by limiting access to only what is necessary. Here's how it works:
Create Service Accounts: Create an impersonator service account (the one that will perform the impersonation) and a target service account (the one that will be impersonated).
Assign Roles: Assign the necessary roles to the impersonator service account, including the roles/iam.serviceAccountTokenCreator role.
Configure Terraform Provider: Set the impersonated_service_account field in the Terraform provider block to the email address of the target service account.
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3 авг 2024
