[Optimization][dinky-getaway] Add Deployment status monitoring.

dinky-gateway/src/main/java/org/dinky/gateway/kubernetes/utils/K8sClientHelper.java

@@ -19,6 +19,12 @@
 
 package org.dinky.gateway.kubernetes.utils;
 
+import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.util.ObjectUtil;
+import io.fabric8.kubernetes.api.model.apps.DeploymentCondition;
+import io.fabric8.kubernetes.client.*;
+import io.fabric8.kubernetes.client.dsl.RollableScalableResource;
+import org.apache.commons.lang3.StringUtils;
 import org.dinky.gateway.kubernetes.decorate.DinkySqlConfigMapDecorate;
 import org.dinky.utils.TextUtil;
 
@@ -46,9 +52,6 @@
 import io.fabric8.kubernetes.api.model.OwnerReferenceBuilder;
 import io.fabric8.kubernetes.api.model.Pod;
 import io.fabric8.kubernetes.api.model.apps.Deployment;
-import io.fabric8.kubernetes.client.Config;
-import io.fabric8.kubernetes.client.DefaultKubernetesClient;
-import io.fabric8.kubernetes.client.KubernetesClient;
 import io.fabric8.kubernetes.client.utils.Serialization;
 import lombok.Data;
 import lombok.extern.slf4j.Slf4j;
@@ -65,6 +68,7 @@ public class K8sClientHelper {
     private KubernetesClient kubernetesClient;
     protected Configuration configuration;
     private DinkySqlConfigMapDecorate sqlFileDecorate;
+    private Watcher<Deployment> deploymentStatusWatch = getDeploymentStatusWatch();
 
     public K8sClientHelper(Configuration configuration, String kubeConfig) {
         this.configuration = configuration;
@@ -86,6 +90,46 @@ public Optional<Deployment> getJobService(String clusterId) {
         return Optional.of(deployment);
     }
 
+    /**
+     * getDeploymentStatusWatch
+     */
+    private Watcher<Deployment> getDeploymentStatusWatch() {
+        return new Watcher<Deployment>() {
+
+            @Override
+            public void eventReceived(Action action, Deployment deployment) {
+                String deploymentName = deployment.getMetadata().getName();
+                log.info("deployment name: {}, deployment action: {}", deploymentName, action);
+                if (ObjectUtil.isNotNull(deployment.getStatus())
+                        && CollectionUtil.isNotEmpty(deployment.getStatus().getConditions())) {
+                    List<DeploymentCondition> conditions = deployment.getStatus().getConditions();
+                    conditions.forEach(condition -> {
+                        if (StringUtils.equalsIgnoreCase(condition.getStatus(), "true")) {
+                            log.info("deployment name: {}, deployment status: {}, message: {}",
+                                    deploymentName,
+                                    condition.getStatus(),
+                                    condition.getMessage());
+                        } else {
+                            log.warn("deployment name: {}, deployment status: {}, message: {}",
+                                    deploymentName,
+                                    condition.getStatus(),
+                                    condition.getMessage());
+                        }
+                    });
+                }
+            }
+
+            @Override
+            public void onClose(WatcherException cause) {
+                if (cause != null) {
+                    log.error("Watcher closed due to exception: {}", cause.getMessage());
+                } else {
+                    log.info("Watcher closed gracefully.");
+                }
+            }
+        };
+    }
+
     public boolean getClusterIsPresent(String clusterId) {
         return getJobService(clusterId).isPresent();
     }
@@ -113,12 +157,12 @@ private void initKubeClient(String kubeConfig) {
      */
     public Deployment createDinkyResource() {
         log.info("createDinkyResource");
-        Deployment deployment = kubernetesClient
+        RollableScalableResource<Deployment> deploymentRollableScalableResource = kubernetesClient
                 .apps()
                 .deployments()
                 .inNamespace(configuration.get(KubernetesConfigOptions.NAMESPACE))
-                .withName(configuration.get(KubernetesConfigOptions.CLUSTER_ID))
-                .get();
+                .withName(configuration.get(KubernetesConfigOptions.CLUSTER_ID));
+        Deployment deployment = deploymentRollableScalableResource.get();
         List<HasMetadata> resources = getSqlFileDecorate().buildResources();
         // set owner reference
         OwnerReference deploymentOwnerReference = new OwnerReferenceBuilder()
@@ -134,13 +178,15 @@ public Deployment createDinkyResource() {
                 resource.getMetadata().setOwnerReferences(Collections.singletonList(deploymentOwnerReference)));
         // create resources
         resources.forEach(resource -> log.info(Serialization.asYaml(resource)));
+        deploymentRollableScalableResource.watch(deploymentStatusWatch);
         kubernetesClient.resourceList(resources).createOrReplace();
         return deployment;
     }
 
     /**
      * initPodTemplate
      * Preprocess the pod template
+     *
      * @param sqlStatement
      * @return
      */
@@ -166,8 +212,7 @@ public Pod decoratePodTemplate(String sqlStatement, String podTemplate) {
 
     /**
      * dumpPod2Str
-     *
-     * */
+     */
     public String dumpPod2Str(Pod pod) {
         // use snakyaml to serialize the pod
         Representer representer = new IgnoreNullRepresenter();
@@ -179,9 +224,11 @@ public String dumpPod2Str(Pod pod) {
         Yaml yaml = new Yaml(representer, options);
         return yaml.dump(pod);
     }
+
     /**
      * close
      * delete the temporary directory and close the client
+     *
      * @return
      */
     public boolean close() {