Add a description of what the script does to gen-backup-files

global/overlay/etc/puppet/modules/net/files/baas2_restoretest/gen-backup-files

@@ -1,4 +1,10 @@
 #!/usr/bin/env bash
+# This script is intended to generate files used for doing automated restore tests.
+# - It will create one static file (once), that always should be the same
+# - It will create one file where we append a new timestamp each day
+# - It will create one new file each day with the timestamp in the name
+# - Lastly it creates a checksum file containing checksums for all files in the folder.
+#   This checksum file will be used on the restore server to validate a successful restore.
 
 set -eu