Notify at the end of the backup.

Ansible/roles/debian_server/files/btrfs-backup

@@ -6,6 +6,7 @@ list_subvolumes() {
 }
 
 cleanup() {
+    exit_code="$?"
     for volume in $(list_subvolumes "$source/.snapshot")
     do
         if [ -d "$source/.snapshot/$volume" ]
@@ -15,6 +16,12 @@ cleanup() {
     done
     btrfs subvolume delete "$source/.snapshot"
     sync --file-system "$source"
+    if [ "$exit_code" -eq 0 ]
+    then
+        curl "https://notify.shore.co.il/send?message=Backup%20finished%20successfully%20on%20$(hostname -s)."
+    else
+        curl "https://notify.shore.co.il/send?message=Backup%20failed%20on%20$(hostname -s)."
+    fi
 }
 
 if [ "$#" -ne 2 ]