* Define Trusted Image Projects:
* Identify the project or projects where your trusted operating system images are stored.
* Ensure these images meet your organization's security requirements and are regularly updated to mitigate vulnerabilities.
* Create an Organization Policy:
* Navigate to the Organization Policies page in the Google Cloud Console.
* Create a policy constraint that restricts the creation of boot disks to only those images stored in your trusted image project(s).
* The policy constraint to use is constraints/compute.trustedImageProjects.
* Apply the Policy:
* Apply this organization policy at the appropriate level (organization, folder, or project) to enforce that all new VM instances use images from the trusted repository.
* This ensures consistency in the security posture across all projects within the organization.
* Monitor Compliance:
* Regularly monitor the compliance with this policy using audit logs and other monitoring tools.
* Update the trusted images as necessary to ensure they remain secure and compliant with your security standards.
References:
* Organization Policy Service
* Trusted Image Projects Constraint