Bug 1530: Limit IP addresses

Adds an exit to the awk command so that only the first IP address is used on
a system that might have more than one IP address on the chosen interface

Fixes bug 1530

Change-Id: I7d5775ed1c1e801a338e048576d5106dc6c3d23a
Signed-off-by: beierlm <mark.beierl@canonical.com>
diff --git a/installers/charmed_install.sh b/installers/charmed_install.sh
index c686597..bd714a6 100755
--- a/installers/charmed_install.sh
+++ b/installers/charmed_install.sh
@@ -450,8 +450,8 @@
     version: 3}'
 }
 
-DEFAULT_IF=`ip route list match 0.0.0.0 | awk '{print $5}'`
-DEFAULT_IP=`ip -o -4 a |grep ${DEFAULT_IF}|awk '{split($4,a,"/"); print a[1]}'`
+DEFAULT_IF=`ip route list match 0.0.0.0 | awk '{print $5; exit}'`
+DEFAULT_IP=`ip -o -4 a |grep ${DEFAULT_IF}|awk '{split($4,a,"/"); print a[1]; exit}'`
 
 check_arguments $@
 mkdir -p ~/.osm