fix the PGW installation

debian/changelog

@@ -1,3 +1,9 @@
+nextepc (0.2-2~xenial) xenial; urgency=medium
+
+  * Fix PGW installation
+
+ --  Sukchan Lee <acetcom@gmail.com>  Tue, 31 Oct 2017 03:16:02 +0000
+
 nextepc (0.2-1~artful2) artful; urgency=medium
 
   * Fix the compile error [-Werror=pointer]

debian/nextepc-core.postinst

@@ -26,7 +26,7 @@ case "$1" in
 			--home /var/run/nextepc --no-create-home \
 			--quiet --group nextepc
 	fi
-	for dir in /var/run/nextepc /var/log/nextepc; do
+	for dir in /var/log/nextepc; do
 		if ! dpkg-statoverride --list "$dir" >/dev/null 2>&1; then
 			dpkg-statoverride --update --add nextepc nextepc 0755 "$dir"
 		fi

debian/nextepc-pgw.install

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

debian/nextepc-pgw.postinst

@@ -21,6 +21,13 @@ set -e
 case "$1" in
     configure)
     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
     ;;