Resolve "Move application availability checks from Janitor to Platform"

src/main/java/net/geant/nmaas/kubernetes/KubernetesApiClientService.java

@@ -3,8 +3,12 @@ package net.geant.nmaas.kubernetes;
 import io.fabric8.kubernetes.api.model.Namespace;
 import io.fabric8.kubernetes.api.model.NamespaceBuilder;
 import io.fabric8.kubernetes.api.model.apps.Deployment;
+import io.fabric8.kubernetes.api.model.apps.DeploymentList;
 import io.fabric8.kubernetes.api.model.apps.StatefulSet;
+import io.fabric8.kubernetes.api.model.apps.StatefulSetList;
 import io.fabric8.kubernetes.client.KubernetesClient;
+import io.fabric8.kubernetes.client.dsl.NonNamespaceOperation;
+import io.fabric8.kubernetes.client.dsl.RollableScalableResource;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import net.geant.nmaas.kubernetes.remote.entities.KCluster;
@@ -47,9 +51,13 @@ public class KubernetesApiClientService {
 
     public Deployment getDeployment(KCluster kCluster, String namespace, String deploymentName) {
         try (KubernetesClient client = initClient(kCluster)) {
-            return client.apps()
+            NonNamespaceOperation<Deployment, DeploymentList, RollableScalableResource<Deployment>> deploymentsInNamespace = client.apps()
                     .deployments()
-                    .inNamespace(namespace)
+                    .inNamespace(namespace);
+            log.debug("Found the following deployments in namespace {} -> {}",
+                    namespace,
+                    deploymentsInNamespace.list().getItems().stream().map(d -> d.getMetadata().getName()).toList());
+            return deploymentsInNamespace
                     .withName(deploymentName)
                     .get();
         }
@@ -57,9 +65,13 @@ public class KubernetesApiClientService {
 
     public StatefulSet getStatefulSet(KCluster kCluster, String statefulSetName, String namespace) {
         try (KubernetesClient client = initClient(kCluster)) {
-            return client.apps()
+            NonNamespaceOperation<StatefulSet, StatefulSetList, RollableScalableResource<StatefulSet>> statefulSetsInNamespace = client.apps()
                     .statefulSets()
-                    .inNamespace(namespace)
+                    .inNamespace(namespace);
+            log.debug("Found the following statefulsets in namespace {} -> {}",
+                    namespace,
+                    statefulSetsInNamespace.list().getItems().stream().map(d -> d.getMetadata().getName()).toList());
+            return statefulSetsInNamespace
                     .withName(statefulSetName)
                     .get();
         }

src/main/java/net/geant/nmaas/kubernetes/KubernetesApiJanitorService.java

@@ -54,7 +54,10 @@ public class KubernetesApiJanitorService {
             if (Objects.nonNull(statefulSet)) {
                 return Objects.equals(statefulSet.getSpec().getReplicas(), statefulSet.getStatus().getReadyReplicas());
             }
-            throw new JanitorResponseException("");
+            log.info("StatefulSet not found as well");
+            throw new JanitorResponseException(
+                    String.format("Not able to check application state. No deployment/statefulset with name %s found in namespace %s", deploymentId.value(), namespace)
+            );
         }
     }