service/forum.md

@@ -145,6 +145,26 @@ Within the container its possible to restart the Discourse daemon using:
 
 ## Disaster recovery
 
+In case the machine is lost, it's possible to restore the forum from backups.
+
+The first step is to install a new machine following the installation steps in
+the `Installation` section below.
+
+Once a blank installation is done, restore the Discourse backup directory,
+`/srv/discourse/shared/standalone/backups/default`, from Bacula backups.
+
+The restoration process is then:
+
+     cd /srv/discourse
+     ./launcher enter app
+     discourse enable_restore
+     discourse restore <backupfilename>.tar.gz
+     exit
+
+Once that's done, rebuild the Discourse app using:
+
+    ./launcher rebuild app
+
 # Reference
 
 ## Installation