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ServerSideApplyIT.java
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ServerSideApplyIT.java
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/**
* 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.kubernetes;
import io.fabric8.junit.jupiter.api.RequireK8sVersionAtLeast;
import io.fabric8.kubernetes.api.model.IntOrString;
import io.fabric8.kubernetes.api.model.Service;
import io.fabric8.kubernetes.api.model.ServiceBuilder;
import io.fabric8.kubernetes.client.KubernetesClient;
import io.fabric8.kubernetes.client.dsl.Resource;
import io.fabric8.kubernetes.client.dsl.base.PatchContext;
import io.fabric8.kubernetes.client.dsl.base.PatchType;
import org.junit.jupiter.api.Test;
import java.util.Collections;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
@RequireK8sVersionAtLeast(majorVersion = 1, minorVersion = 22)
class ServerSideApplyIT {
KubernetesClient client;
@Test
void testServerSideApply() {
Service service = new ServiceBuilder()
.withNewMetadata().withName(PatchIT.class.getSimpleName().toLowerCase() + "-svc").endMetadata()
.withNewSpec()
.addToSelector("app", "testapp")
.addNewPort()
.withProtocol("TCP")
.withPort(80)
.withTargetPort(new IntOrString(9376))
.endPort()
.endSpec()
.build();
Resource<Service> resource = client.services().resource(service);
resource.delete();
// 1st apply - create must be a server side apply - otherwise the later operations will need to force
service = resource.patch(PatchContext.of(PatchType.SERVER_SIDE_APPLY), service);
assertNotNull(service);
assertEquals(1, service.getSpec().getPorts().size());
// make sure a cluster ip was assigned
String clusterIp = service.getSpec().getClusterIP();
assertNotNull(clusterIp);
// Modify resource
service.getSpec().setSelector(Collections.singletonMap("app", "other"));
// 2nd server side apply
service = client.resource(service).serverSideApply();
assertEquals("other", service.getSpec().getSelector().get("app"));
assertEquals(clusterIp, service.getSpec().getClusterIP());
}
}