components/camel-kubernetes/src/test/java/org/apache/camel/component/kubernetes/consumer/KubernetesServicesConsumerTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
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package org.apache.camel.component.kubernetes.consumer;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import io.fabric8.kubernetes.api.model.IntOrString;
import io.fabric8.kubernetes.api.model.Service;
import io.fabric8.kubernetes.api.model.ServicePort;
import io.fabric8.kubernetes.api.model.ServiceSpec;

import org.apache.camel.EndpointInject;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.kubernetes.KubernetesConstants;
import org.apache.camel.component.kubernetes.KubernetesTestSupport;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.util.ObjectHelper;
import org.junit.Ignore;
import org.junit.Test;

@Ignore("Requires a running Kubernetes Cluster")
public class KubernetesServicesConsumerTest extends KubernetesTestSupport {

    @EndpointInject("mock:result")
    protected MockEndpoint mockResultEndpoint;

    @Test
    public void createAndDeleteService() throws Exception {
        if (ObjectHelper.isEmpty(authToken)) {
            return;
        }

        mockResultEndpoint.expectedMessageCount(2);
        mockResultEndpoint.expectedHeaderValuesReceivedInAnyOrder(KubernetesConstants.KUBERNETES_EVENT_ACTION, "ADDED", "DELETED");
        Exchange ex = template.request("direct:createService", new Processor() {

            @Override
            public void process(Exchange exchange) throws Exception {
                exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, "default");
                exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_SERVICE_NAME, "test");
                Map<String, String> labels = new HashMap<>();
                labels.put("this", "rocks");
                exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_SERVICE_LABELS, labels);
                ServiceSpec serviceSpec = new ServiceSpec();
                List<ServicePort> lsp = new ArrayList<>();
                ServicePort sp = new ServicePort();
                sp.setPort(8080);
                sp.setTargetPort(new IntOrString(8080));
                sp.setProtocol("TCP");
                lsp.add(sp);
                serviceSpec.setPorts(lsp);
                Map<String, String> selectorMap = new HashMap<>();
                selectorMap.put("containter", "test");
                serviceSpec.setSelector(selectorMap);
                exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_SERVICE_SPEC, serviceSpec);
            }
        });

        Service serv = ex.getOut().getBody(Service.class);

        assertEquals(serv.getMetadata().getName(), "test");

        ex = template.request("direct:deleteService", new Processor() {

            @Override
            public void process(Exchange exchange) throws Exception {
                exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, "default");
                exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_SERVICE_NAME, "test");
            }
        });

        boolean servDeleted = ex.getOut().getBody(Boolean.class);

        assertTrue(servDeleted);

        Thread.sleep(3000);

        mockResultEndpoint.assertIsSatisfied();
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("direct:list").toF("kubernetes-services://%s?oauthToken=%s&operation=listServices", host, authToken);
                from("direct:listByLabels").toF("kubernetes-services://%s?oauthToken=%s&operation=listServicesByLabels", host, authToken);
                from("direct:getServices").toF("kubernetes-services://%s?oauthToken=%s&operation=getService", host, authToken);
                from("direct:createService").toF("kubernetes-services://%s?oauthToken=%s&operation=createService", host, authToken);
                from("direct:deleteService").toF("kubernetes-services://%s?oauthToken=%s&operation=deleteService", host, authToken);
                fromF("kubernetes-services://%s?oauthToken=%s&labelKey=this&labelValue=rocks", host, authToken).process(new KubernertesProcessor()).to(mockResultEndpoint);
            }
        };
    }

    public class KubernertesProcessor implements Processor {
        @Override
        public void process(Exchange exchange) throws Exception {
            Message in = exchange.getIn();
            log.info("Got event with body: " + in.getBody() + " and action " + in.getHeader(KubernetesConstants.KUBERNETES_EVENT_ACTION));
        }
    }
}