add examples

extensions/certmanager/examples/src/main/java/io/fabric8/certmanager/examples/v1/CertificateCreate.java

@@ -0,0 +1,41 @@
+/**
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * 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.
+ */
+package io.fabric8.certmanager.examples.v1;
+
+import io.fabric8.certmanager.api.model.v1.Certificate;
+import io.fabric8.certmanager.api.model.v1.CertificateBuilder;
+import io.fabric8.certmanager.api.model.v1.CertificateList;
+import io.fabric8.certmanager.client.DefaultCertManagerClient;
+import io.fabric8.certmanager.client.NamespacedCertManagerClient;
+
+public class CertificateCreate {
+  public static void main(String[] args) {
+    try (NamespacedCertManagerClient certManagerClient = new DefaultCertManagerClient()) {
+      String namespace = "default";
+
+      Certificate certificate = new CertificateBuilder()
+        .build();
+
+      // Create Certificate
+      certManagerClient.certificates().inNamespace(namespace).create(certificate);
+      System.out.println("Created: " + certificate.getMetadata().getName());
+
+      // List Certificate
+      CertificateList certificateList = certManagerClient.certificates().inNamespace(namespace).list();
+      System.out.println("There are " + certificateList.getItems().size() + " TaskRun objects in " + namespace);
+    }
+  }
+}