feat: add cluster issuer resource viewer (#82)

This change adds the Cluster Issuer resource viewer.

plugins/cad/src/components/ResourceViewerDialog/components/FirstClassViewerSelector.tsx

@@ -16,6 +16,7 @@
 
 import React from 'react';
 import { getApplyReplacementsStructuredMetadata } from './FirstClassViewers/StructuredMetadata/resources/applyReplacements';
+import { getClusterIssuerStructuredMetadata } from './FirstClassViewers/StructuredMetadata/resources/clusterIssuer';
 import { getConfigMapStructuredMetadata } from './FirstClassViewers/StructuredMetadata/resources/configMap';
 import { getIngressStructuredMetadata } from './FirstClassViewers/StructuredMetadata/resources/ingress';
 import { getKptfileStructuredMetadata } from './FirstClassViewers/StructuredMetadata/resources/kptfile';
@@ -43,6 +44,9 @@ const getCustomMetadataFn = (
   groupVersionKind: string,
 ): CustomMetadataFn | undefined => {
   switch (groupVersionKind) {
+    case 'cert-manager.io/v1/ClusterIssuer':
+      return getClusterIssuerStructuredMetadata;
+
     case 'fn.kpt.dev/v1alpha1/ApplyReplacements':
       return getApplyReplacementsStructuredMetadata;
 

plugins/cad/src/components/ResourceViewerDialog/components/FirstClassViewers/StructuredMetadata/resources/clusterIssuer.ts

@@ -0,0 +1,31 @@
+/**
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { ClusterIssuer } from '../../../../../../types/ClusterIssuer';
+import { KubernetesResource } from '../../../../../../types/KubernetesResource';
+import { Metadata } from '../StructuredMetadata';
+
+export const getClusterIssuerStructuredMetadata = (
+  resource: KubernetesResource,
+): Metadata => {
+  const clusterIssuer = resource as ClusterIssuer;
+
+  return {
+    server: clusterIssuer.spec.acme.server,
+    email: clusterIssuer.spec.acme.email,
+    privateKeySecretName: clusterIssuer.spec.acme.privateKeySecretRef?.name,
+  };
+};

plugins/cad/src/types/ClusterIssuer.ts

@@ -0,0 +1,45 @@
+/**
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { KubernetesKeyValueObject } from './KubernetesResource';
+
+export type ClusterIssuer = {
+  kind: string;
+  apiVersion: string;
+  metadata: ClusterIssuerMetadata;
+  spec: ClusterIssuerSpec;
+};
+
+export type ClusterIssuerMetadata = {
+  name: string;
+  namespace?: string;
+  labels?: KubernetesKeyValueObject;
+  annotations?: KubernetesKeyValueObject;
+};
+
+export type ClusterIssuerSpec = {
+  acme: ACMEIssuer;
+};
+
+export type ACMEIssuer = {
+  server: string;
+  email?: string;
+  privateKeySecretRef?: ACMEIssuerPrivateKeySecretRef;
+};
+
+export type ACMEIssuerPrivateKeySecretRef = {
+  name: string;
+};