Make libvirt over tcp an option

If you don't need to expose libvirt over tcp, you have the option
not to.

Change-Id: I582841296f8bc3b02cb1918c209d777ba607b55a

etc/kolla-kubernetes/kolla-kubernetes.yml

@@ -27,6 +27,7 @@ nova_conductor_replicas: "1"
 nova_scheduler_replicas: "1"
 
 enable_openvswitch_tcp: "no"
+enable_libvirt_tcp: "no"
 
 #################################
 # Kubernetes Cluster DNS setting

services/nova/nova-compute-pod.yml.j2

@@ -29,7 +29,10 @@ spec:
                   crudini --set /nova/nova.conf vnc vncserver_listen $IP;
                   crudini --set /nova/nova.conf vnc vncserver_proxyclient_address $IP;
                   crudini --set /nova/nova.conf vnc novncproxy_base_url $IP;
-                  crudini --set /nova/nova.conf vnc connection_uri ''qemu+tcp://''$IP"],
+{%- if enable_libvirt_tcp == "yes" %}
+                  crudini --set /nova/nova.conf vnc connection_uri ''qemu+tcp://''$IP;
+{%- endif %}
+             "],
              "volumeMounts": [
                 {
                    "name": "nova-compute-config",
@@ -44,6 +47,9 @@ spec:
         ]'
     spec:
       hostNetwork: True
+{%- if enable_libvirt_tcp != "yes" %}
+      hostIPC: True
+{%- endif %}
       containers:
         - name: nova-compute
           image: "{{ nova_compute_image_full }}"

services/nova/nova-libvirt-pod.yml.j2

@@ -24,7 +24,10 @@ spec:
                  "-c",
                  "cp -a /config/..data/* /nova/;
                   ip=$(ip addr show dev {{ tunnel_interface }} | grep -G ''inet '' | awk ''{print $2}'');
-                  sed -i ''s|^listen_addr.*=.*|listen_addr=\"''${ip%/*}''\"|g'' /nova/libvirtd.conf;"],
+{%- if enable_libvirt_tcp == "yes" %}
+                  sed -i ''s|^listen_addr.*=.*|listen_addr=\"''${ip%/*}''\"|g'' /nova/libvirtd.conf;
+{%- endif %}
+             "],
              "volumeMounts": [
                 {
                    "name": "nova-libvirt-config",
@@ -40,6 +43,9 @@ spec:
     spec:
       hostNetwork: True
       hostPID: True
+{%- if enable_libvirt_tcp != "yes" %}
+      hostIPC: True
+{%- endif %}
       containers:
         - name: nova-libvirt
           image: "{{ nova_libvirt_image_full }}"