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How to use K3sContainer class of org.testcontainers.k3s package

Best Testcontainers-java code snippet using org.testcontainers.k3s.K3sContainer

Source:K8sClusterTestResource.java

...9import java.util.Collections;10import java.util.Map;11@Log12public class K8sClusterTestResource implements QuarkusTestResourceLifecycleManager {13    private K3sContainer k3sContainer;14    private ToStringConsumer logger;15    public KindContainer kindContainer;16    public static boolean k3s = true;17    public Map<String, String> startK3s() {18        try {19            k3sContainer.start();20            Thread.sleep(10000);21            return null;22        } catch (Exception ex) {23            System.out.println(logger.toUtf8String());24            return null;25        }26    }27    public Map<String, String> startKind() {28        kindContainer.start();29        return null;30    }31    @Override32    public Map<String, String> start() {33        return (k3s) ? startK3s() : startKind();34    }35    @Override36    public void stop() {37        if (k3s) {38            kindContainer.stop();39        } else k3sContainer.stop();40    }41    @Override42    public void inject(TestInjector testInjector) {43        if (!k3s) {44            testInjector.injectIntoFields(kindContainer.client(), (f) -> f.getType().isAssignableFrom(DefaultKubernetesClient.class));45        } else {46            Config config = Config.fromKubeconfig(k3sContainer.getKubeConfigYaml());47            // workaround for undiagnosed issue; fabric8 seems to not identify48            // the client key algorithm correctly, so fails to work with K3s49            // ECDSA keys unless configured explicitly50            config.setClientKeyAlgo("EC");51            DefaultKubernetesClient k8sclient = new DefaultKubernetesClient(config);52            testInjector.injectIntoFields(k8sclient, (f) -> f.getType().isAssignableFrom(DefaultKubernetesClient.class));53        }54    }55    @Override56    public void init(Map<String, String> initArgs) {57        QuarkusTestResourceLifecycleManager.super.init(initArgs);58        if (k3s) {59            logger = new ToStringConsumer();60            k3sContainer = new K3sContainer(DockerImageName.parse("rancher/k3s:v1.23.1-rc1-k3s1")).withLogConsumer(new CustomLogConsumer(log).withPrefix("KIND"));61        } else {62            kindContainer = new KindContainer().withLogConsumer(new CustomLogConsumer(log).withPrefix("KIND"));63        }64    }65}...

Source:LocalImageDeploymentIT.java

...4import org.junit.jupiter.api.Timeout;5import org.testcontainers.containers.BindMode;6import org.testcontainers.junit.jupiter.Container;7import org.testcontainers.junit.jupiter.Testcontainers;8import org.testcontainers.k3s.K3sContainer;9import org.testcontainers.utility.DockerImageName;10import java.util.concurrent.TimeUnit;11import static org.junit.jupiter.api.Assertions.assertEquals;12import static org.junit.jupiter.api.Assertions.assertTrue;13/**14 * Test capability that allow us to import images properly15 */16@Testcontainers17public class LocalImageDeploymentIT {18    @Container19    private final @NotNull K3sContainer container = new K3sContainer(DockerImageName20            .parse("rancher/k3s:v1.21.3-k3s1"))21            .withFileSystemBind("./build/containers", "/build", BindMode.READ_ONLY);22    @Timeout(value = 2, unit = TimeUnit.MINUTES)23    @Test24    public void withLocalImages_mqttMessagePublishedReceived() throws Exception {25        var outLoadImage = container.execInContainer("/bin/ctr",26                "images",27                "import",28                "/build/" + "hivemq-k8s-image.tar");29        assertEquals(0, outLoadImage.getExitCode());30        final var outListImages = container.execInContainer("/bin/ctr", "images", "ls");31        assertTrue(outListImages.getStdout().contains("hivemq/hivemq4-test"));32    }33}...

Source:K3sEnvironment.java

...3import org.testcontainers.containers.wait.strategy.AbstractWaitStrategy;4import org.testcontainers.containers.wait.strategy.Wait;5import org.testcontainers.containers.wait.strategy.WaitStrategy;6import org.testcontainers.junit.jupiter.Testcontainers;7import org.testcontainers.k3s.K3sContainer;8import org.testcontainers.utility.DockerImageName;9import lombok.extern.slf4j.Slf4j;10@Slf4j11@Testcontainers12public class K3sEnvironment {13    private K3sContainer k3s;14    public void start() {15        DockerImageName dockerImage = DockerImageName.parse("rancher/k3s:v1.21.3-k3s1");16        this.k3s = new K3sContainer(dockerImage)17                .withLogConsumer(new Slf4jLogConsumer(log));18        Runtime.getRuntime().addShutdownHook(new Thread(() -> {19            this.k3s.close();20        }));21        // this.k3s.waitingFor(Wait.defaultWaitStrategy().waitUntilReady(waitStrategyTarget));22        // System.out.println(this.k3s.isRunning());23        while (!this.k3s.isRunning()){24            25        };26    }27    /**28     * 29     * @return config for local Kubernetes cluster30     */...

K3sContainer

Using AI Code Generation

1package org.testcontainers.k3s;2import org.testcontainers.containers.GenericContainer;3import org.testcontainers.containers.wait.strategy.Wait;4import org.testcontainers.utility.DockerImageName;5public class K3sContainer<SELF extends K3sContainer<SELF>> extends GenericContainer<SELF> {6    private static final DockerImageName DEFAULT_IMAGE_NAME = DockerImageName.parse("rancher/k3s");7    private static final String DEFAULT_TAG = "latest";8    private static final Integer K3S_PORT = 6443;9    private static final Integer K3S_API_PORT = 6444;10    public K3sContainer() {11        this(DEFAULT_IMAGE_NAME.withTag(DEFAULT_TAG));12    }13    public K3sContainer(final String dockerImageName) {14        this(DockerImageName.parse(dockerImageName));15    }16    public K3sContainer(final DockerImageName dockerImageName) {17        super(dockerImageName);18        dockerImageName.assertCompatibleWith(DEFAULT_IMAGE_NAME);19        withExposedPorts(K3S_PORT, K3S_API_PORT);20        waitingFor(Wait.forHttp("/healthz").forStatusCode(200));21    }22    public Integer getK3sPort() {23        return getMappedPort(K3S_PORT);24    }25    public Integer getK3sApiPort() {26        return getMappedPort(K3S_API_PORT);27    }28    public String getK3sUrl() {29    }30}31package org.testcontainers.k3s;32import org.junit.jupiter.api.Test;33import org.testcontainers.junit.jupiter.Container;34import org.testcontainers.junit.jupiter.Testcontainers;35public class K3sContainerTest {36    private final K3sContainer k3sContainer = new K3sContainer();37    void test() {38        System.out.println("K3s port: " + k3sContainer.getK3sPort());39        System.out.println("K3s API port: " + k3sContainer.getK3sApiPort());40        System.out.println("K3s URL: " + k3sContainer.getK3sUrl());41    }42}

K3sContainer

Using AI Code Generation

1import org.testcontainers.k3s.K3sContainer;2public class K3sTest {3    public static void main(String[] args) {4        K3sContainer k3s = new K3sContainer();5        k3s.start();6        System.out.println("K3s is running");7        k3s.stop();8    }9}

K3sContainer

Using AI Code Generation

1import org.testcontainers.k3s.K3sContainer;2public class TestK3s {3    public static void main(String[] args) {4        K3sContainer k3s = new K3sContainer();5        k3s.start();6        System.out.println("K3s cluster is running");7    }8}

K3sContainer

Using AI Code Generation

1import org.testcontainers.k3s.K3sContainer;2import org.testcontainers.k3s.K3sVersion;3import org.testcontainers.utility.MountableFile;4public class K3sContainerTest {5    public static void main(String[] args) {6        try (K3sContainer k3s = new K3sContainer(K3sVersion.v1_18_6_k3s1)) {7            k3s.withK3sImage("rancher/k3s:v1.18.6-k3s1");8            k3s.withCopyFileToContainer(MountableFile.forClasspathResource("k3s.yaml"), "/k3s.yaml");9            k3s.start();10            System.out.println("Kubectl version is: " + k3s.getKubectlVersion());11            System.out.println("K3s version is: " + k3s.getK3sVersion());12            System.out.println("K3s server URL is: " + k3s.getK3sServerUrl());13            System.out.println("K3s server token is: " + k3s.getK3sServerToken());14            System.out.println("K3s server certificate is: " + k3s.getK3sServerCertificate());15        }16    }17}18import org.testcontainers.k3s.K3sContainer;19import org.testcontainers.k3s.K3sVersion;20import org.testcontainers.utility.MountableFile;21public class K3sContainerTest {22    public static void main(String[] args) {23        try (K3sContainer k3s = new K3sContainer(K3sVersion.v1_18_6_k3s1)) {24            k3s.withK3sImage("rancher/k3s:v1.18.6-k3s1");25            k3s.withCopyFileToContainer(MountableFile.forClasspathResource("k3s.yaml"), "/k3s.yaml");26            k3s.start();27            System.out.println("Kubectl version is: " + k3s.getKubectlVersion());28            System.out.println("K3s version is: " + k3s.getK3sVersion());29            System.out.println("K3s server URL is: " + k3s.getK3

K3sContainer

Using AI Code Generation

1import org.testcontainers.k3s.K3sContainer;2import org.testcontainers.k3s.K3sConfig;3import org.testcontainers.k3s.K3sConfigBuilder;4public class TestK3sContainer {5    public static void main(String[] args) {6        K3sConfig k3sConfig = new K3sConfigBuilder()7                .withK3sVersion("v1.19.5+k3s1")8                .withClusterSecret("abc123")9                .withK3sImage("rancher/k3s:v1.19.5-k3s1")10                .build();11        K3sContainer k3s = new K3sContainer(k3sConfig);12        k3s.start();13        System.out.println("K3s is running");14        k3s.stop();15    }16}

K3sContainer

Using AI Code Generation

1import org.testcontainers.containers.output.Slf4jLogConsumer;2import org.testcontainers.k3s.K3sContainer;3import org.testcontainers.utility.MountableFile;4import org.slf4j.LoggerFactory;5public class testK3sContainer {6    public static void main(String[] args) throws Exception {7        K3sContainer container = new K3sContainer("v1.17.2-k3s1")8                .withLogConsumer(new Slf4jLogConsumer(LoggerFactory.getLogger("K3s")));9        container.start();10        container.createPod(MountableFile.forClasspathResource("test-pod.yaml"));11        Thread.sleep(30000);12        container.stop();13    }14}

K3sContainer

Using AI Code Generation

1import org.testcontainers.containers.K3sContainer;2import org.testcontainers.containers.output.Slf4jLogConsumer;3import org.testcontainers.utility.DockerImageName;4import java.nio.file.Paths;5import static org.testcontainers.k3s.K3sContainer.K3S_VERSION;6public class 1 {7    public static void main(String[] args) {8        K3sContainer k3s = new K3sContainer(DockerImageName.parse("docker.io/rancher/k3s").withTag(K3S_VERSION))9                .withK3sVersion(K3S_VERSION)10                .withLogConsumer(new Slf4jLogConsumer(System.out));11        k3s.start();12        k3s.createDeployment(Paths.get("deployment.yaml"));13        k3s.deleteDeployment("hello-world");14        k3s.stop();15    }16}

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