k8s: Gather all information from kind cluster

Due to failing PostStart hook it seems that one of the Redpanda broker is in
degraded state and AdminAPI is not responsive. The Pod log collector does not
work if pod is in `PodInitializing` state.

To find more evidence what is happening kind export logs command was added.
It should be collected by the buildkite agent and served for later
investigations.

REF
redpanda-data#7396

(cherry picked from commit 441a967)

src/go/k8s/apis/redpanda/v1alpha1/cluster_webhook.go

@@ -684,17 +684,14 @@ func (r *Cluster) validateRedpandaResources(
 
 func (r *Cluster) validateLicense(old *Cluster) field.ErrorList {
 	var allErrs field.ErrorList
-	// Cluster has finalizers now, no validation if it is deleting
-	if r.GetDeletionTimestamp() != nil {
-		return allErrs
-	}
 	if l := r.Spec.LicenseRef; l != nil {
-		secret, err := l.GetSecret(context.Background(), kclient)
+		key := &SecretKeyRef{Namespace: l.Namespace, Name: l.Name, Key: l.Key}
+		secret, err := key.GetSecret(context.Background(), kclient)
 		if err != nil {
 			allErrs = append(allErrs, field.Invalid(field.NewPath("spec").Child("licenseRef"), r.Spec.LicenseRef, err.Error()))
 		}
 		if secret != nil {
-			if _, err := l.GetValue(secret, DefaultLicenseSecretKey); err != nil {
+			if _, err := key.GetValue(secret, DefaultLicenseSecretKey); err != nil {
 				allErrs = append(allErrs, field.Invalid(field.NewPath("spec").Child("licenseRef"), r.Spec.LicenseRef, err.Error()))
 			}
 		}

src/go/k8s/apis/redpanda/v1alpha1/cluster_webhook_test.go

@@ -633,18 +633,6 @@ func TestValidateUpdate_NoError(t *testing.T) {
 		assert.Error(t, err)
 	})
 
-	t.Run("cluster can be deleted even if licenseRef not found", func(t *testing.T) {
-		license := redpandaCluster.DeepCopy()
-		license.Spec.LicenseRef = &v1alpha1.SecretKeyRef{Name: "notfound", Namespace: "notfound"}
-
-		// Set cluster to deleting state
-		now := metav1.Now()
-		license.SetDeletionTimestamp(&now)
-
-		err := license.ValidateUpdate(redpandaCluster)
-		assert.NoError(t, err)
-	})
-
 	decreaseCases := []struct {
 		initial    string
 		target     string

src/go/k8s/tests/e2e/endpoint-template/00-assert.yaml

@@ -25,3 +25,5 @@ collectors:
     command: kubectl get clusters -o jsonpath={@} -n $NAMESPACE
   - type: command
     command: kubectl get pods -o jsonpath={@} -n $NAMESPACE
+  - type: command
+    command: kind export logs --name kind tests/_e2e_artifacts/endpoint-template