fix(ingress): add ingressClassName to IngressProps (#2964)

src/ingress.ts

@@ -40,6 +40,14 @@ export interface IngressProps extends base.ResourceProps {
    * extension, if the ingress controller fulfilling the ingress supports SNI.
    */
   readonly tls?: IngressTls[];
+
+  /**
+   * Class Name for this ingress.
+   *
+   * This field is a reference to an IngressClass resource that contains
+   * additional Ingress configuration, including the name of the Ingress controller.
+   */
+  readonly className?: string;
 }
 
 /**
@@ -90,6 +98,7 @@ export class Ingress extends base.Resource {
       metadata: props.metadata,
       spec: {
         defaultBackend: Lazy.any({ produce: () => this._defaultBackend?._toKube() }),
+        ingressClassName: props.className,
         rules: Lazy.any({ produce: () => this.synthRules() }),
         tls: Lazy.any({ produce: () => this.tlsConfig() }),
       },

test/ingress.test.ts

@@ -12,6 +12,36 @@ test('defaultChild', () => {
 
 });
 
+test('IngressClassName can be set', () => {
+  // GIVEN
+  const chart = Testing.chart();
+  const service = new Service(chart, 'my-service', { ports: [{ port: 80 }] } );
+
+  // WHEN
+  new Ingress(chart, 'my-ingress', {
+    defaultBackend: IngressBackend.fromService(service),
+    className: 'myIngressClassName',
+  });
+
+  // THEN
+  expect(Testing.synth(chart).filter(x => x.kind === 'Ingress')).toStrictEqual([
+    {
+      apiVersion: 'networking.k8s.io/v1',
+      kind: 'Ingress',
+      metadata: { name: 'test-my-ingress-c8135042' },
+      spec: {
+        defaultBackend: {
+          service: {
+            name: 'test-my-service-c8493104',
+            port: { number: 80 },
+          },
+        },
+        ingressClassName: 'myIngressClassName',
+      },
+    },
+  ]);
+});
+
 describe('IngressBackend', () => {
   describe('fromService', () => {
     test('if the service exposes a port, it will be used by the ingress', () => {