Modified YamlExample

YamlExample.java

/*
Copyright 2018 The Kubernetes Authors.
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.kubernetes.client.examples;

import io.kubernetes.client.ApiException;
import io.kubernetes.client.models.V1Pod;
import io.kubernetes.client.models.V1PodBuilder;
import io.kubernetes.client.util.Yaml;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;

/**
 * A simple example of how to parse a Kubernetes object.
 *
 * <p>Easiest way to run this: mvn exec:java
 * -Dexec.mainClass="io.kubernetes.client.examples.YamlExample"
 *
 * <p>From inside $REPO_DIR/examples
 */
public class YamlExample {
  public static void main(String[] args) throws IOException, ApiException, ClassNotFoundException {
    V1Pod pod =
        new V1PodBuilder()
            .withNewMetadata()
            .withName("apod")
            .endMetadata()
            .withNewSpec()
            .addNewContainer()
            .withName("www")
            .withImage("nginx")
            .withNewResources()
            .withLimits(new HashMap<>())
            .endResources()
            .endContainer()
            .endSpec()
            .build();

    // System.out.println(Yaml.dump(pod));
    File f = new File("example_pod.yaml");
    FileWriter writer = new FileWriter(f);
    writer.write(Yaml.dump(pod));
    writer.close();
   /*Try to load what we just wrote with the same class we wrote it with and it throws an exception.*/ 
    Object yamlObject = Yaml.load(f);
    //    V1Service svc =
    //        new V1ServiceBuilder()
    //            .withNewMetadata()
    //            .withName("aservice")
    //            .endMetadata()
    //            .withNewSpec()
    //            .withSessionAffinity("ClientIP")
    //            .withType("NodePort")
    //            .addNewPort()
    //            .withProtocol("TCP")
    //            .withName("client")
    //            .withPort(8008)
    //            .withNodePort(8080)
    //            .withTargetPort(new IntOrString(8080))
    //            .endPort()
    //            .endSpec()
    //            .build();
    //
    //
    //
    //    System.out.println(Yaml.dump(svc));

  }
}