Query: kubernetes_cluster_upgraded_with_non_vulnerable_version

select
  a.id as resource,
  case
    when a.kubernetes_version ~ '1\.13\.[0-4]'
    or a.kubernetes_version ~ '1\.12\.[0-6]'
    or a.kubernetes_version ~ '1\.11\.[0-8]'
    or a.kubernetes_version ~ '1.([0-9]|10).[0-9]{1,2}' then 'alarm'
    else 'ok'
  end as status,
  case
    when a.kubernetes_version ~ '1\.13\.[0-4]'
    or a.kubernetes_version ~ '1\.12\.[0-6]'
    or a.kubernetes_version ~ '1\.11\.[0-8]'
    or a.kubernetes_version ~ '1.([0-9]|10).[0-9]{1,2}' then a.name || ' not upgraded to a non-vulnerable Kubernetes version.'
    else a.name || ' upgraded to a non-vulnerable Kubernetes version.'
  end as reason,
  a.resource_group as resource_group,
  sub.display_name as subscription
from
  azure_kubernetes_cluster as a,
  azure_subscription as sub
where
  sub.subscription_id = a.subscription_id;