Mods
GCP

IAM Role: GCP/Storage/Admin

PermissionGrant
storage.buckets.setIamPolicyAdmin
storage.objects.setIamPolicyAdmin
storage.buckets.createOperator
storage.buckets.deleteOperator
storage.buckets.updateOperator
storage.objects.createOperator
storage.objects.deleteOperator
storage.objects.updateOperator
storage.buckets.getMetadata
storage.buckets.getIamPolicyMetadata
storage.buckets.listMetadata
storage.objects.getMetadata
storage.objects.getIamPolicyMetadata
storage.objects.listMetadata