Add a new page on how to restart a pod on Kubernetes (#2618)

Author: NataliaIvakina

modules/ROOT/content-nav.adoc

@@ -61,6 +61,7 @@
 ** xref:kubernetes/operations/index.adoc[]
 *** xref:kubernetes/operations/maintenance-mode.adoc[]
 *** xref:kubernetes/operations/reset-password.adoc[]
+*** xref:kubernetes/operations/change-configuration.adoc[]
 *** xref:kubernetes/operations/dump-load.adoc[]
 *** xref:kubernetes/operations/backup-restore.adoc[]
 *** xref:kubernetes/operations/upgrade.adoc[]

modules/ROOT/pages/kubernetes/index.adoc

@@ -28,6 +28,7 @@ This chapter describes the following:
 * xref:kubernetes/operations/index.adoc[Operations] -- Perform operations on a Neo4j deployment running on Kubernetes.
 ** xref:kubernetes/operations/maintenance-mode.adoc[Maintenance mode]
 ** xref:kubernetes/operations/reset-password.adoc[Reset the neo4j user password]
+** xref:kubernetes/operations/change-configuration.adoc[Make a configuration change]
 ** xref:kubernetes/operations/dump-load.adoc[Dump and load databases (offline)]
 ** xref:kubernetes/operations/backup-restore.adoc[Back up and restore a single database (online)]
 ** xref:kubernetes/operations/upgrade.adoc[Upgrade Neo4j on Kubernetes]

modules/ROOT/pages/kubernetes/operations/change-configuration.adoc

@@ -0,0 +1,33 @@
+:description: The page describes how to restart Neo4j pods after modifying ConfigMaps or secrets.
+
+= Make a configuration change
+
+When you update ConfigMaps or secrets (for example, updating GDS or Bloom license values), you have to restart your Neo4j pod so that the changes take effect.
+
+You have two options for restarting: 
+
+* To run the `kubectl delete pod` command as follows:
++
+[source, shell]
+----
+kubectl delete pod <pod_name>
+----
++
+You manually delete the Neo4j pod.
+Kubernetes will automatically recreate it with the updated configuration.
+
+* To use the `kubectl rollout restart` command:
++
+[source, shell]
+----
+kubectl rollout restart statefulset/<neo4j-statefulset-name>
+----
++
+A rollout restart means a gradual recreation of a pod — the old pod is not removed entirely until the new pod is running successfully.
+This process is safer and ensures that your application remains available throughout the restart process.
+
+
+If you need to change Neo4j password, see xref:kubernetes/operations/reset-password.adoc[].
+
+For information on how to install and manage plugins, refer to the xref:kubernetes/plugins.adoc[].
+

modules/ROOT/pages/kubernetes/operations/index.adoc

@@ -8,6 +8,7 @@ It covers the following topics:
 
 * xref:kubernetes/operations/maintenance-mode.adoc[Maintenance mode]
 * xref:kubernetes/operations/reset-password.adoc[Reset the neo4j user password]
+* xref:kubernetes/operations/change-configuration.adoc[Make a configuration change]
 * xref:kubernetes/operations/dump-load.adoc[Dump and load databases (offline)]
 * xref:kubernetes/operations/backup-restore.adoc[Back up and restore a single database (online)]
 * xref:kubernetes/operations/upgrade.adoc[Upgrade Neo4j on Kubernetes]