1 files changed, 17 insertions, 0 deletions
diff --git a/DEBIAN/preinst b/DEBIAN/preinst
new file mode 100755
index 0000000..75ff571
--- /dev/null
+++ b/DEBIAN/preinst
@@ -0,0 +1,17 @@
+#!/bin/sh
+#https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html
+thisservice=keepalive.service
+
+case "${1}" in
+   upgrade)
+      # This preinst is being run before an upgrade.
+      # $2 is old-version-number
+      systemctl stop keepalive.service 1>/dev/null 2>&1
+      ;;
+   install)
+      # Brand new installation of the package.
+      [ ]
+      ;;
+esac
+
+exit 0