Here are some best practices for using Google Cloud IAM roles:

  1. Use least privilege principle: Assign only the minimum set of permissions required to perform a task.
  2. Use roles, not individual users: Assign roles to groups of users rather than assigning permissions to individual users. This makes it easier to manage and update permissions.
  3. Use predefined roles: Use predefined roles, such as “Editor” or “Viewer”, instead of creating custom roles. This makes it easier to understand the level of access associated with a role.
  4. Use custom roles: Create custom roles when predefined roles do not meet the specific needs of your organization.
  5. Use conditional access: Use conditions, such as time of day or network location, to restrict access to resources.
  6. Use audit logging: Enable audit logging to track and monitor access to resources.
  7. Review permissions regularly: Review permissions regularly to ensure that they are still appropriate and revoke any permissions that are no longer needed.
  8. Use service accounts for non-human access: Use service accounts for access by non-human entities, such as applications and scripts.
  9. Use multi-factor authentication: Enable multi-factor authentication for sensitive resources and high-privilege roles.
  10. Limit access to specific resources: Limit access to specific resources, such as specific Cloud Storage buckets or BigQuery datasets, rather than granting access to all resources.
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