TT#16555 Do not mark template files as conffiles

We always want these to overwrite the previously installed files, even
if locally modified, otherwise bad things happen.

We are not concerned about possibly losing data, because on NGCP /etc is
always managed with git, so the whole history is always available.

Change-Id: I7f1af4eab0da5a3bb4bae6e83472e3da8df23f5c

debian/ngcp-system-tests.lintian-overrides

@@ -0,0 +1 @@
+ngcp-system-tests: file-in-etc-not-marked-as-conffile etc/ngcp-config/templates/*

debian/ngcp-system-tests.postrm

@@ -0,0 +1,45 @@
+#!/bin/sh -e
+# This script can be called in the following ways:
+#
+# After the package was removed:
+# <postrm> remove
+#
+# After the package was purged:
+# <postrm> purge
+#
+# After the package was upgraded:
+# <old-postrm> upgrade <new-version>
+# if that fails:
+# <new-postrm> failed-upgrade <old-version>
+#
+#
+# After all of the packages files have been replaced:
+# <postrm> disappear <overwriting-package> <version>
+#
+#
+# If preinst fails during install:
+# <new-postrm> abort-install
+#
+# If preinst fails during upgrade of removed package:
+# <new-postrm> abort-install <old-version>
+#
+# If preinst fails during upgrade:
+# <new-postrm> abort-upgrade <old-version>
+
+case "$1" in
+  purge)
+    rm -rf /etc/ngcp-tests/
+  ;;
+
+  remove|upgrade|failed-upgrade|disappear|abort-install|abort-upgrade)
+  ;;
+
+  *)
+    echo "postrm called with unknown argument '$1'" >&2
+    exit 1
+  ;;
+esac
+
+#DEBHELPER#
+
+exit 0

debian/rules

@@ -1,3 +1,9 @@
 #!/usr/bin/make -f
 %:
 	dh $@
+
+override_dh_installdeb:
+	dh_installdeb
+	# Do not mark any of the templates as conffiles, we always want them
+	# to be overwritten.
+	sed -i -e '/\/etc\/ngcp-config\/templates/d' debian/*/DEBIAN/conffiles