Unable to use with KOPS prior to 1.8

[azman0101]

Since an --audit-policy-file parameter must be defined to make audit2rbac works. Cluster built with KOPS < 1.8 can't use the tool to generates RBAC role and binding objects.

"Audit Policy File" had been merged only for KOPS 1.8:
kubernetes/kops#3692

Or, is this ok to use KOPS 1.8 with Kubernetes 1.6 ?

[igoratencompass]

If this helps, I have used 1.8 to manage and upgrade my 1.6 cluster to 1.7 and then 1.7 to 1.8. I think kops maintains backword compatibility so you can manage all k8s versions using the latest kops version.

[liggitt]

The audit policy file option is available in K8s 1.8. I believe that only kops 1.8 and up can be used to deploy a 1.8 server, but you would need to verify that with the kops documentation.