io.fabric8.kubernetes.PodIT.java Source code

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Here is the source code for io.fabric8.kubernetes.PodIT.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.commons.ReadyEntity;
import io.fabric8.kubernetes.api.model.Pod;
import io.fabric8.kubernetes.api.model.PodBuilder;
import io.fabric8.kubernetes.api.model.PodList;
import io.fabric8.kubernetes.client.KubernetesClient;
import io.fabric8.kubernetes.client.dsl.ExecListener;
import io.fabric8.kubernetes.client.dsl.ExecWatch;
import okhttp3.Response;
import org.apache.commons.lang.RandomStringUtils;
import org.arquillian.cube.kubernetes.api.Session;
import org.arquillian.cube.kubernetes.impl.requirement.RequiresKubernetes;
import org.arquillian.cube.requirement.ArquillianConditionalRunner;
import org.jboss.arquillian.test.api.ArquillianResource;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.ByteArrayOutputStream;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import static junit.framework.TestCase.assertNotNull;
import static org.assertj.core.api.Assertions.assertThat;
import static org.awaitility.Awaitility.await;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

@RunWith(ArquillianConditionalRunner.class)
@RequiresKubernetes
public class PodIT {

    @ArquillianResource
    public KubernetesClient client;

    @ArquillianResource
    public Session session;

    private Pod pod1;

    private String currentNamespace;

    private static final Logger logger = LoggerFactory.getLogger(PodIT.class);

    @Before
    public void init() {
        currentNamespace = session.getNamespace();
        client.pods().inNamespace(currentNamespace).delete();

        pod1 = new PodBuilder().withNewMetadata()
                .withName("pod1-" + RandomStringUtils.randomAlphanumeric(6).toLowerCase()).endMetadata()
                .withNewSpec().addNewContainer().withName("busybox").withImage("busybox")
                .withCommand("sleep", "36000").endContainer().endSpec().build();

        client.pods().inNamespace(currentNamespace).createOrReplace(pod1);
    }

    @Test
    public void load() {
        Pod aPod = client.pods().inNamespace(currentNamespace).load(getClass().getResourceAsStream("/test-pod.yml"))
                .get();
        assertThat(aPod).isNotNull();
        assertEquals("nginx", aPod.getMetadata().getName());
    }

    @Test
    public void get() {
        pod1 = client.pods().inNamespace(currentNamespace).withName(pod1.getMetadata().getName()).get();
        assertNotNull(pod1);
    }

    @Test
    public void list() {
        PodList podList = client.pods().inNamespace(currentNamespace).list();
        assertThat(podList).isNotNull();
        assertTrue(podList.getItems().size() >= 1);
    }

    @Test
    public void update() {
        pod1 = client.pods().inNamespace(currentNamespace).withName(pod1.getMetadata().getName()).edit()
                .editMetadata().addToLabels("foo", "bar").endMetadata().done();
        assertEquals("bar", pod1.getMetadata().getLabels().get("foo"));
    }

    @Test
    public void delete() {
        assertTrue(client.pods().inNamespace(currentNamespace).delete(pod1));
    }

    @Test
    public void log() throws InterruptedException {
        // Wait for resources to get ready
        ReadyEntity<Pod> podReady = new ReadyEntity<Pod>(Pod.class, client, pod1.getMetadata().getName(),
                currentNamespace);
        await().atMost(30, TimeUnit.SECONDS).until(podReady);
        String log = client.pods().inNamespace(currentNamespace).withName(pod1.getMetadata().getName()).getLog();
        assertNotNull(log);
    }

    @Test
    public void exec() throws InterruptedException {
        // Wait for resources to get ready
        ReadyEntity<Pod> podReady = new ReadyEntity<>(Pod.class, client, pod1.getMetadata().getName(),
                currentNamespace);
        await().atMost(30, TimeUnit.SECONDS).until(podReady);
        final CountDownLatch execLatch = new CountDownLatch(1);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ExecWatch execWatch = client.pods().inNamespace(currentNamespace).withName(pod1.getMetadata().getName())
                .writingOutput(out).withTTY().usingListener(new ExecListener() {
                    @Override
                    public void onOpen(Response response) {
                        logger.info("Shell was opened");
                    }

                    @Override
                    public void onFailure(Throwable throwable, Response response) {
                        logger.info("Shell barfed");
                        execLatch.countDown();
                    }

                    @Override
                    public void onClose(int i, String s) {
                        logger.info("Shell closed");
                        execLatch.countDown();
                    }
                }).exec("date");

        execLatch.await(5, TimeUnit.SECONDS);
        assertNotNull(execWatch);
        assertNotNull(out.toString());
    }

    @After
    public void cleanup() throws Exception {
        client.pods().inNamespace(currentNamespace).withName(pod1.getMetadata().getName()).delete();
    }

}