Ingress: add keepalived-router-id for keeplived vip

When there are multiple keepalived instances in same network space,
equal keepalived router-ids cause conflict (now default router-id number
is 100). So we have to specify keepalived's router_id for VRRP peering.
This commit make keepalived route-id configurable, so that we can
prevent keepalived conflict caused by default keepalived router-id.

Change-Id: Ia92a8b64205ab52ad15237e9fdeaacb61aae6400

ingress/templates/deployment-ingress.yaml

@@ -338,6 +338,8 @@ spec:
             value: {{ ( .Values.network.vip.addr | split "/" )._0  | quote }}
           - name: KEEPALIVED_UNICAST_PEERS
             value: null
+          - name: KEEPALIVED_ROUTER_ID
+            value: {{ .Values.network.vip.keepalived_router_id | quote }}
 {{- end }}
 {{- end }}
       volumes:

ingress/values.yaml

@@ -140,6 +140,7 @@ network:
     mode: routed
     interface: ingress-vip
     addr: 172.18.0.1/32
+    keepalived_router_id: 100
   ingress:
     annotations:
       #NOTE(portdirect): if left blank this is populated from