common: Fix postinst to append "localdomain" to unqualified hostnames

Closes #57
BytemarkHosting · Sep 1, 2017 · 6970e92 · 6970e92
1 parent 3fd53e1
commit 6970e92
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/common/debian/postinst b/common/debian/postinst
@@ -62,6 +62,13 @@ if [ -z "$HOSTNAME" ] ; then
   fi
 fi
 
+#
+# Append ".localdomain" if HOSTNAME has no dots.
+#
+if ! [[ "$HOSTNAME" =~ ^[_a-z0-9-]+\.([_a-z0-9-]+\.?)+$ ]] ; then
+	HOSTNAME="$HOSTNAME.localdomain"
+fi
+
 #
 #  If there are no existing directories beneath /srv/ create a default.
 #