if err != nil {
		return nil, "", fmt.Errorf("not able to locate pod with selector %s: %v", labelSelector, err)
	}
	if len(pl.Items) < 1 {
		return nil, "", errors.New("no pods found")
	}
	for _, pod := range pl.Items {
		podNames = append(podNames, pod.Name)
	}
	ns = pl.Items[0].Namespace
	return podNames, ns, nil
}

func ecdsConfigCmd(ctx cli.Context) *cobra.Command {

  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1;

  // List of MutatingWebhookConfiguration.
  repeated MutatingWebhookConfiguration items = 2;
}

// Rule is a tuple of APIGroups, APIVersion, and Resources.It is recommended
// to make sure that all the tuple expansions are valid.
message Rule {

    # Set up routing rules for inter-cluster direct pod to pod & service communication
    C1_POD_CIDR=$(KUBECONFIG="${C1_KUBECONFIG}" kubectl get node -ojsonpath='{.items[0].spec.podCIDR}')
    C2_POD_CIDR=$(KUBECONFIG="${C2_KUBECONFIG}" kubectl get node -ojsonpath='{.items[0].spec.podCIDR}')
    C1_SVC_CIDR=$(KUBECONFIG="${C1_KUBECONFIG}" kubectl cluster-info dump | sed -n 's/^.*--service-cluster-ip-range=\([^"]*\).*$/\1/p' | head -n 1)

	if err != nil {
		return err
	}
	// If there is no default webhook but a revisioned default webhook exists,
	// and we are installing a new IOP with default semantics, the default webhook shifts.
	if exists && len(mwhs.Items) == 0 && iop.Spec.GetRevision() == "" {
		p.Println("This installation will make default injection and validation pointing to the default revision, and " +
			"originally it was pointing to the revisioned one.")
	}
	return nil

          patches:
          - path: spec.ports.[name:grpc-xds].port
            value: 15099 # OVERRIDDEN
```

The user-defined overlay uses a path spec that includes the ability to select list items by key. In the example above,
the container with the key-value "name: discovery" is selected from the list of containers, and the command line

              nodeSelectors:
                description: Only connect to this peer on nodes that match one of
                  these selectors.
                items:
                  properties:
                    matchExpressions:
                      items:
                        properties:
                          key:
                            type: string
                          operator:

			webhooksAfter, _ := client.AdmissionregistrationV1().MutatingWebhookConfigurations().List(context.Background(), metav1.ListOptions{})
			if len(webhooksAfter.Items) != len(tc.webhooksAfter.Items) {
				t.Fatalf("expected %d after running, got %d", len(tc.webhooksAfter.Items), len(webhooksAfter.Items))
			}
		})
	}
}

func TestSetTagErrors(t *testing.T) {
	tcs := []struct {
		name           string
		tag            string

				}

				if len(pl.Items) < 1 {
					return errors.New("no pods found")
				}

				if len(pl.Items) > 1 {
					log.Warnf("more than 1 pods fits selector: %s; will use pod: %s", labelSelector, pl.Items[0].Name)
				}

				// only use the first pod in the list
				podName = pl.Items[0].Name
				ns = pl.Items[0].Namespace
			} else {

message ClusterRoleBindingList {
  // Standard object's metadata.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1;

  // Items is a list of ClusterRoleBindings
  repeated ClusterRoleBinding items = 2;
}

// ClusterRoleList is a collection of ClusterRoles.
// Deprecated in v1.17 in favor of rbac.authorization.k8s.io/v1 ClusterRoles, and will no longer be served in v1.22.

message ClusterRoleBindingList {
  // Standard object's metadata.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1;

  // Items is a list of ClusterRoleBindings
  repeated ClusterRoleBinding items = 2;
}

// ClusterRoleList is a collection of ClusterRoles.
// Deprecated in v1.17 in favor of rbac.authorization.k8s.io/v1 ClusterRoles, and will no longer be served in v1.22.