ENDOC-427 add Backing up and restoring Keycloak

vuepress/docs/.vuepress/next.js

@@ -387,6 +387,10 @@ module.exports = {
                         title: 'Backing Up and Restoring Your Environment',
                         path: path  + 'devops/backing-up-and-restoring-your-environment.md',
                     },
+                    {
+                        title: 'Backing Up and Restoring Keycloak',
+                        path: path  + 'devops/backing-restoring-keycloak.md',
+                    },
                     {
                         title: 'Caching and Clustering',
                         path: path  + 'devops/caching-and-clustering.md',

vuepress/docs/next/tutorials/devops/backing-restoring-keycloak.md

@@ -0,0 +1,54 @@
+---
+sidebarDepth: 2
+---
+
+# Backing Up and Restoring Keycloak
+
+
+This tutorial describes how to backup an active Entando Identity Management Keycloak instance and restore it in another environment.
+
+## Prerequisites:
+A Keycloak instance running on Entando with a database management system (DBMS) in the backend. This procedure will not work with an embedded database. 
+
+## Create a Backup of Keycloak Realm
+1. From the command line, get the pod name of the Keycloak server you wish to backup. In a quickstart environment, the pod name will begin with `quickstart-kc-server-deployment`.
+
+2. Use kubectl to start a bash shell in the pod:
+```
+ kubectl exec -it your-keycloak-pod-name -- /bin/bash
+ ```
+3. Create a new directory in /tmp with:
+```
+mkdir -p /tmp/export 
+ ```
+
+4. Run the following script to retrieve the data for the entando realm and save it to a JSON file in the `export` directory. A new Keycloak server will run on a different port (offset=200) to avoid conflicts with the original Entando Keycloak instance.
+```
+/opt/jboss/keycloak/bin/standalone.sh
+-Djboss.socket.binding.port-offset=200
+-Dkeycloak.migration.action=export 
+-Dkeycloak.migration.provider=singleFile 
+-Dkeycloak.migration.realmName=entando
+-Dkeycloak.migration.usersExportStrategy=DIFFERENT_FILES 
+-Dkeycloak.migration.file=/tmp/export/entando-prod-realm.json
+```
+5. If there are no errors, press Ctrl+C to stop the process.
+6. Type `exit` to close the bash shell in the pod.
+7. Execute this command to copy the realm data file to the proper location:  
+```
+kubectl cp [keycloak-pod-name]:/tmp/export/ keycloak-backup
+```
+## Import the Keycloak Realm
+1. Login to the new Entando Keycloak server where the realm is to be restored.
+
+2. From the left sidebar, go to `Import`.
+
+3. Click `Select file` button and `upload` the JSON file from the `keycloak-backup` directory. You will see the following page:
+
+![Entando ID Management UI](./img/import-keycloak.png)
+
+4. You have now successfully imported the Keycloak realm to a new environment.
+
+::: Note
+If you are using a different environment, with a different hostname, you should import only users or set the flag for `If a resource exists` to `Skip`.
+:::