adding first steps for dhcp-loopback support and vcs info in control

debian/control

@@ -4,6 +4,8 @@ Priority: extra
 Maintainer: toby <toby@wit.com>
 Build-Depends: debhelper (>= 7.0.0~), config-package-dev (>= 4.15)
 Standards-Version: 3.9.2
+Vcs-Browser: https://git.wit.com/netops/wit-network-config
+Vcs-Git: https://git.wit.com/netops/wit-network-config
 
 Package: wit-hypervisor-config
 Architecture: all

debian/wit-hypervisor-config.transform

@@ -1,3 +1,4 @@
 /etc/systemd/timesyncd.conf.wit sed -e 's/#NTP=.*/NTP=ipv6.ntp.ubuntu.com/g'
 /etc/frr/daemons.wit sed -e 's/bgpd=no/bgpd=yes/' -e 's/zebra=no/zebra=yes/'
 /etc/bash.bashrc.wit sed -e 's/.*witaddon/source \/etc\/bashrc-witaddon/; t; $ s/$/\nsource \/etc\/bashrc-witaddon/'
+/etc/dhcp/dhclient.conf.wit sed -e '/option.*loopback/d;t;1s/^/option loopback code 225 = ip-address;\n/'

files/dhcp-loopback

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+if [ ! -z $new_loopback ]; then
+   sed -ie '/^LOOPBACK=.*/d' /etc/environment
+   echo "LOOPBACK=$new_loopback" >>/etc/environment
+fi