Non-resource assertions¶

Under certain circumstances, it makes sense to evaluate assertions that do not depend on resources. For example, when asserting the number of nodes in a cluster is equal to a known value.

The test below uses the x_k8s_list function to query the list of nodes in the cluster. It uses the results to compare the number of nodes found with a known number (1 in this case).

apiVersion: chainsaw.kyverno.io/v1alpha1
kind: Test
metadata:
  name: example
spec:
  steps:
  - try:
    - assert:
        resource:
          (x_k8s_list($client, 'v1', 'Node')):
            (length(items)): 1