chore : add example for getting logs of controller via microservice name

Signed-off-by: Rohan Kumar <rohaan@redhat.com>

src/main/java/io/fabric8/ControllerGetLogsFilterLabel.java

@@ -0,0 +1,30 @@
+package io.fabric8;
+
+import io.fabric8.kubernetes.api.model.Pod;
+import io.fabric8.kubernetes.api.model.PodList;
+import io.fabric8.kubernetes.client.KubernetesClient;
+import io.fabric8.kubernetes.client.KubernetesClientBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ControllerGetLogsFilterLabel {
+ private static final Logger logger = LoggerFactory.getLogger(ControllerGetLogsFilterLabel.class.getSimpleName());
+ public static void main(String[] args) {
+ try (KubernetesClient client = new KubernetesClientBuilder().build()) {
+ // This microservice is already deployed using Kubernetes maven plugin
+ PodList podList = client.pods()
+ .inNamespace("default")
+ .withLabel("app", "random-generator")
+ .list();
+ if (podList.getItems().isEmpty()) {
+ logger.info("No pod with provided label found in cluster");
+ } else {
+ Pod pod = podList.getItems().get(0);
+ String log = client.pods().inNamespace("default")
+ .resource(pod)
+ .getLog();
+ logger.info(log);
+ }
+ }
+ }
+}

src/main/java/io/fabric8/DeploymentGetLogs.java

@@ -0,0 +1,21 @@
+package io.fabric8;
+
+import io.fabric8.kubernetes.api.model.Pod;
+import io.fabric8.kubernetes.api.model.PodList;
+import io.fabric8.kubernetes.client.KubernetesClient;
+import io.fabric8.kubernetes.client.KubernetesClientBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DeploymentGetLogs {
+ private static final Logger logger = LoggerFactory.getLogger(DeploymentGetLogs.class.getSimpleName());
+ public static void main(String[] args) {
+ try (KubernetesClient client = new KubernetesClientBuilder().build()) {
+ // This microservice is already deployed using Kubernetes maven plugin
+ String log = client.apps().deployments().inNamespace("default")
+ .withName("random-generator")
+ .getLog();
+ logger.info(log);
+ }
+ }
+}