Use first IP address for interface

It is possible than an interface has multiple IP addresses, for
simplicity of this change, use the first one so that the service
can start.

We can look later into improving it to accept some sort of index
for the IP address.

Change-Id: Ie856f54331d689a51bfd6de45db5820b765797ef

nova/Chart.yaml

@@ -14,7 +14,7 @@ apiVersion: v1
 appVersion: v1.0.0
 description: OpenStack-Helm Nova
 name: nova
-version: 0.1.15
+version: 0.1.16
 home: https://docs.openstack.org/nova/latest/
 icon: https://www.openstack.org/themes/openstack/images/project-mascots/Nova/OpenStack_Project_Nova_vertical.png
 sources:

nova/templates/bin/_nova-compute-init.sh.tpl

@@ -25,7 +25,7 @@ chown ${NOVA_USER_UID} /var/lib/nova /var/lib/nova/instances
 migration_interface="{{- .Values.conf.libvirt.live_migration_interface -}}"
 if [[ -n $migration_interface ]]; then
     # determine ip dynamically based on interface provided
-    migration_address=$(ip a s $migration_interface | grep 'inet ' | awk '{print $2}' | awk -F "/" '{print $1}')
+    migration_address=$(ip a s $migration_interface | grep 'inet ' | awk '{print $2}' | awk -F "/" '{print $1}' | head -1)
 fi
 
 touch /tmp/pod-shared/nova-libvirt.conf
@@ -43,7 +43,7 @@ if [[ -z $hypervisor_interface ]]; then
     hypervisor_interface=$(ip -4 route list 0/0 | awk -F 'dev' '{ print $2; exit }' | awk '{ print $1 }') || exit 1
 fi
 
-hypervisor_address=$(ip a s $hypervisor_interface | grep 'inet ' | awk '{print $2}' | awk -F "/" '{print $1}')
+hypervisor_address=$(ip a s $hypervisor_interface | grep 'inet ' | awk '{print $2}' | awk -F "/" '{print $1}' | head -1)
 
 if [ -z "${hypervisor_address}" ] ; then
   echo "Var my_ip is empty"

releasenotes/notes/nova.yaml

@@ -16,3 +16,4 @@ nova:
   - 0.1.13 Change Issuer to ClusterIssuer
   - 0.1.14 BUG for deploying multiple compute nodes
   - 0.1.15 Mount /dev/pts in Nova compute container
+  - 0.1.16 Use first IP address for migration