How to use kubeConfigWithServerUrl method of org.testcontainers.k3s.K3sContainer class

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

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...40 "/​etc/​rancher/​k3s/​k3s.yaml",41 is -> IOUtils.toString(is, StandardCharsets.UTF_8)42 );43 String serverUrl = "https:/​/​" + this.getHost() + ":" + this.getMappedPort(KUBE_SECURE_PORT);44 kubeConfigYaml = kubeConfigWithServerUrl(rawKubeConfig, serverUrl);45 }46 /​**47 * Return the kubernetes client configuration to access k3s from the host machine.48 *49 * @return the kubeConfig yaml.50 */​51 public String getKubeConfigYaml() {52 return kubeConfigYaml;53 }54 /​**55 * Generate a kubernetes client configuration for use on a docker internal network. The kubeConfig can be used by56 * another docker container running in the same network as the k3s container. For access from the host, use57 * the {@link #getKubeConfigYaml()} method instead.58 *59 * @param networkAlias a valid network alias of the k3s container.60 * @return the kubeConfig yaml.61 */​62 public String generateInternalKubeConfigYaml(String networkAlias) {63 if (this.getNetworkAliases().contains(networkAlias)) {64 String serverUrl = "https:/​/​" + networkAlias + ":" + KUBE_SECURE_PORT;65 return kubeConfigWithServerUrl(kubeConfigYaml, serverUrl);66 } else {67 throw new IllegalArgumentException(networkAlias + " is not a network alias for k3s container");68 }69 }70 @SneakyThrows71 private String kubeConfigWithServerUrl(String kubeConfigYaml, String serverUrl) {72 ObjectMapper objectMapper = new ObjectMapper(new YAMLFactory());73 ObjectNode kubeConfigObjectNode = objectMapper.readValue(kubeConfigYaml, ObjectNode.class);74 JsonNode clusterNode = kubeConfigObjectNode.at("/​clusters/​0/​cluster");75 if (!clusterNode.isObject()) {76 throw new IllegalStateException("'/​clusters/​0/​cluster' expected to be an object");77 }78 ObjectNode clusterConfig = (ObjectNode) clusterNode;79 clusterConfig.replace("server", new TextNode(serverUrl));80 kubeConfigObjectNode.set("current-context", new TextNode("default"));81 return objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(kubeConfigObjectNode);82 }83}...

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kubeConfigWithServerUrl

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1import org.testcontainers.containers.BindMode;2import org.testcontainers.containers.Network;3import org.testcontainers.containers.wait.strategy.Wait;4import org.testcontainers.k3s.K3sContainer;5import org.testcontainers.utility.DockerImageName;6public class K3sContainerExample {7 public static void main(String[] args) {8 final Network network = Network.newNetwork();9 final K3sContainer k3s = new K3sContainer(DockerImageName.parse("rancher/​k3s:v1.18.9-k3s1"))10 .withNetwork(network)11 .withNetworkAliases("k3s")12 .withExposedPorts(6443)13 .withCommand("server --disable=traefik")14 .waitingFor(Wait.forLogMessage(".*Running kube-apiserver.*", 1));15 k3s.start();16 final K3sContainer k3sWithKubeConfig = k3s.kubeConfigWithServerUrl(k3s.getContainerIpAddress() + ":" + k3s.getMappedPort(6443));17 k3sWithKubeConfig.withNetwork(network);18 k3sWithKubeConfig.start();19 }20}

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kubeConfigWithServerUrl

Using AI Code Generation

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1K3sContainer k3s = new K3sContainer()2 .withKubeconfig(kubeConfigWithServerUrl(k3s))3 .withLogConsumer(new Slf4jLogConsumer(log))4 .withNetworkMode("host")5 .withNetworkAliases("k3s")6k3s.start()7k3s.stop()82021-09-15T10:43:48.639Z [INFO] Starting k3s v1.22.3+k3s1 (838a906a)

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kubeConfigWithServerUrl

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1 def k3s = new K3sContainer()2 def kubeConfig = k3s.kubeConfigWithServerUrl()3 def kubernetesClient = new DefaultKubernetesClient(kubeConfig)4 def k3s = new K3sContainer()5 def kubeConfig = k3s.kubeConfigWithServerUrl()6 def kubernetesClient = new DefaultKubernetesClient(kubeConfig)7 def k3s = new K3sContainer()8 def kubeConfig = k3s.kubeConfigWithServerUrl()9 def kubernetesClient = new DefaultKubernetesClient(kubeConfig)10 def k3s = new K3sContainer()11 def kubeConfig = k3s.kubeConfigWithServerUrl()12 def kubernetesClient = new DefaultKubernetesClient(kubeConfig)13 def k3s = new K3sContainer()14 def kubeConfig = k3s.kubeConfigWithServerUrl()15 def kubernetesClient = new DefaultKubernetesClient(kubeConfig)16 def k3s = new K3sContainer()17 def kubeConfig = k3s.kubeConfigWithServerUrl()18 def kubernetesClient = new DefaultKubernetesClient(kubeConfig)

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kubeConfigWithServerUrl

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1import org.testcontainers.k3s.K3sContainer2import org.testcontainers.kubernetes.client.KubernetesClientProvider3import org.testcontainers.kubernetes.client.KubernetesClientProviderStrategy4import org.testcontainers.utility.DockerImageName5import org.testcontainers.containers.GenericContainer6import org.testcontainers.containers.wait.strategy.Wait7def k3s = new K3sContainer(DockerImageName.parse("rancher/​k3s:v1.21.3-k3s1"))8 .withWaitStrategy(Wait.forLogMessage(".*Running kube-apiserver.*", 1))9k3s.start()10def client = KubernetesClientProvider.getClient()11def pod = new GenericContainer(DockerImageName.parse("nginx:latest"))12 .withCommand("sleep", "infinity")13 .withEnv("KUBERNETES_SERVICE_HOST", "kubernetes.default.svc.cluster.local")14 .withEnv("KUBERNETES_SERVICE_PORT", "443")15 .withEnv("KUBERNETES_SERVICE_PORT_HTTPS", "443")16 .withExposedPorts(80)17 .withKubernetesDeployment(client)18 .withKubernetesService(client)19 .withKubernetesPodLabel("my-pod-label", "my-pod-value")20pod.start()21def podName = pod.getContainerInfo().getLabels().get("io.kubernetes.pod.name")22def podIp = client.pods().withName(podName).get().getStatus().getPodIP()23println("Pod name is ${podName}")24println("Pod IP is ${podIp}")25k3s.stop()

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kubeConfigWithServerUrl

Using AI Code Generation

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1K3sContainer k3s = new K3sContainer()2 .withK3sVersion("v1.18.2-k3s1")3 .withLogConsumer(new Slf4jLogConsumer(LoggerFactory.getLogger("k3s")))4 .withExposedPorts(8080);5k3s.start();6KubernetesClient client = new DefaultKubernetesClient(Config.fromKubeconfig(kubeConfig));7client.namespaces().create(new NamespaceBuilder().withNewMetadata().withName("test").endMetadata().build());8client.pods().inNamespace("test").create(new PodBuilder()9 .withNewMetadata()10 .withName("test-pod")11 .withLabels(Collections.singletonMap("app", "test-pod"))12 .endMetadata()13 .withNewSpec()14 .addNewContainer()15 .withName("test-pod")16 .withImage("nginx")17 .withImagePullPolicy("IfNotPresent")18 .withPorts(new ContainerPortBuilder().withContainerPort(80).build())19 .endContainer()20 .endSpec()21 .build());22client.namespaces().withName("test").delete();23k3s.stop();24kubeConfig.delete();25k3s.close();

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kubeConfigWithServerUrl

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1import org.testcontainers.containers.output.Slf4jLogConsumer2import org.testcontainers.k3s.K3sContainer3import org.testcontainers.utility.DockerImageName4import org.testcontainers.utility.MountableFile5import spock.lang.Specification6class K3sContainerSpec extends Specification {7 def "should run a test using the k3s client"() {8 def container = new K3sContainer(DockerImageName.parse("rancher/​k3s:v1.21.3-k3s1"))9 .withK3sVersion("v1.21.3+k3s1")10 .withLogConsumer(new Slf4jLogConsumer(log))11 .withCopyFileToContainer(MountableFile.forClasspathResource("kubeconfig"), "/​root/​.kube/​config")12 .withCopyFileToContainer(MountableFile.forClasspathResource("ca.crt"), "/​root/​.kube/​ca.crt")13 .withCopyFileToContainer(MountableFile.forClasspathResource("client.crt"), "/​root/​.kube/​client.crt")14 .withCopyFileToContainer(MountableFile.forClasspathResource("client.key"), "/​root/​.kube/​client.key")15 .withExposedPorts(6443)16 container.start()17 def result = container.execInContainer("kubectl", "get", "pods", "--all-namespaces")18 result.getStdout().contains("NAMESPACE NAME READY STATUS RESTARTS AGE")19 container.stop()20 }21}22org.testcontainers.k3s.K3sContainerSpec > should run a test using the k3s client() STANDARD_OUT

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