Replace pike symlink

This patch fix upgrade if files/pike is symlink.
Depends-On: I5b1f32ab606710be54980cdefa26450f8de2868b
Related-Prod: PROD-17540

Change-Id: I8b692ba33921b4877f08db55056a3eb43a079ce5
diff --git a/debian/salt-formula-ceilometer.preinst b/debian/salt-formula-ceilometer.preinst
new file mode 100644
index 0000000..843c4d1
--- /dev/null
+++ b/debian/salt-formula-ceilometer.preinst
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -e
+
+dpkg-maintscript-helper symlink_to_dir \
+        /usr/share/salt-formulas/env/ceilometer/files/pike /usr/share/salt-formulas/env/ceilometer/files/ocata salt-formula-ceilometer -- "$@"
+
+#DEBHELPER#
+
+exit 0