fix the bug for pgw post install script

debian/changelog

@@ -1,3 +1,27 @@
+nextepc (0.2-4~xenial2) xenial; urgency=medium
+
+  * Fix the bug nextepc-pgwd post install script
+
+ -- Sukchan Lee <acetcom@gmail.com>  Tue, 31 Oct 2017 14:07:54 +0000
+
+nextepc (0.2-4~artful) artful; urgency=medium
+
+  * Fix the bug nextepc-pgwd post install script
+
+ -- Sukchan Lee <acetcom@gmail.com>  Tue, 31 Oct 2017 14:06:31 +0000
+
+nextepc (0.2-4~zesty) zesty; urgency=medium
+
+  * Fix the bug nextepc-pgwd post install script
+
+ -- Sukchan Lee <acetcom@gmail.com>  Tue, 31 Oct 2017 14:04:23 +0000
+
+nextepc (0.2-4~xenial) xenial; urgency=medium
+
+  * Fix the bug nextepc-pgwd post install script
+
+ -- Sukchan Lee <acetcom@gmail.com>  Tue, 31 Oct 2017 14:01:58 +0000
+
 nextepc (0.2-3~artful) artful; urgency=medium
 
   * MongoDB re-connect using systemd

debian/nextepc-pgw.install

@@ -3,4 +3,5 @@ etc/nextepc/freeDiameter/pgw.conf
 etc/nextepc/freeDiameter/pgw.cert.pem
 etc/nextepc/freeDiameter/pgw.key.pem
 etc/nextepc/pgw.conf
+support/network/nextepc etc/network/interfaces.d
 support/systemd/nextepc-pgwd.service lib/systemd/system

debian/nextepc-pgw.postinst

@@ -20,14 +20,10 @@ set -e
 
 case "$1" in
     configure)
+    if ! grep "source-directory /etc/network/interfaces.d" /etc/network/interfaces > /dev/null; then
+        echo "source-directory /etc/network/interfaces.d" >> /etc/network/interfaces
+    fi 
     if ! grep "pgwtun" /proc/net/dev > /dev/null; then
-        echo "" >> /etc/network/interfaces
-        echo "auto pgwtun" >> /etc/network/interfaces
-        echo "iface pgwtun inet static " >> /etc/network/interfaces
-        echo "address 45.45.0.1" >> /etc/network/interfaces
-        echo "netmask 255.255.0.0" >> /etc/network/interfaces
-        echo "pre-up ip tuntap add name pgwtun mode tun" >> /etc/network/interfaces
-        echo "post-down ip tuntap del name pgwtun mode tun" >> /etc/network/interfaces
         ifup pgwtun
     fi
     ;;