Make sure ovs ctl file exist before chown

This propose to make sure the exist of
`/run/openvswitch/ovs-vswitchd.${PID}.ctl`
before we do chown command with it.

Change-Id: Icdcfa5684c2a5e610805f6dec9391a4947b213d4

openvswitch/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v1.0.0
 description: OpenStack-Helm OpenVSwitch
 name: openvswitch
-version: 0.1.14
+version: 0.1.15
 home: http://openvswitch.org
 icon: https://www.openstack.org/themes/openstack/images/project-mascots/Neutron/OpenStack_Project_Neutron_vertical.png
 sources:

openvswitch/templates/bin/_openvswitch-vswitchd.sh.tpl

@@ -116,6 +116,12 @@ function poststart () {
   done
   PID=$(cat $OVS_PID)
   OVS_CTL=/run/openvswitch/ovs-vswitchd.${PID}.ctl
+
+  until [ -S $OVS_CTL ]
+  do
+      echo "Waiting for file $OVS_CTL"
+      sleep 1
+  done
   chown {{ .Values.pod.user.nova.uid }}.{{ .Values.pod.user.nova.uid }} ${OVS_CTL}
 }
 

releasenotes/notes/openvswitch.yaml

@@ -15,4 +15,5 @@ openvswitch:
   - 0.1.12 Replace node-role.kubernetes.io/master with control-plane
   - 0.1.13 Upgrade openvswitch image to latest-ubuntu_focal to fix qos issue
   - 0.1.14 Add buffer before accesses pid file
+  - 0.1.15 Add buffer before accesses ovs controller pid socket
 ...