fix: ignore pods spun up from checkpoints in health checks

Pods which are spun up as checkpoints shouldn't be counted towards the
normal pods spun up as part of the daemon set.

Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>

pkg/cluster/check/kubernetes.go

@@ -126,6 +126,18 @@ func K8sFullControlPlaneAssertion(ctx context.Context, cluster ClusterInfo) erro
 			return fmt.Errorf("error listing pods for daemonset %s: %w", ds.GetName(), err)
 		}
 
+		// filter out pod checkpoints
+		n := 0
+
+		for _, pod := range pods.Items {
+			if _, exists := pod.Annotations["checkpointer.alpha.coreos.com/checkpoint-of"]; !exists {
+				pods.Items[n] = pod
+				n++
+			}
+		}
+
+		pods.Items = pods.Items[:n]
+
 		if int32(len(pods.Items)) != ds.Status.DesiredNumberScheduled {
 			return fmt.Errorf("expected number of pods for %s to be %d, got %d", ds.GetName(), ds.Status.DesiredNumberScheduled, len(pods.Items))
 		}