voltctl: update ingress configuration after redeployment in berlin-lab

* handover cluster variable for helm deployments of voltha-infra and
  voltha-stack (volthaInfraDeploy.groovy and volthaStackDeploy.groovy
  are called from vars/volthaDeploy.groovy) to allow usage of it in
  'helm upgrade --install' commands
* replace default virtualhost ingress (enableVirtualHosts=true) for
  voltha-infra and voltha-stack with specific ingress host, by using
  cluster variable (paths also needs to be defined, since there is not
  default for it when defining a specific host)
* adapt volt config generation for physical-build jobs to use '.'
  instead of '-' when adding the value of the cluster variable to align
  with settings for bbsim voltctl configuration
* set default value 'local' for cluster variable when using it in
  volthaInfraDeploy.groovy context (to set voltha-infra.local as default
  ingress hostname)
* set default value 'voltha.local' for cluster variable when using it in
  volthaStackDeploy.groovy context (to set voltha.voltha.local as
  default ingress hostname)

Change-Id: I06ff30b1dafd054232f6f1d62fb0798a92a747a8
Signed-off-by: Jan Klare <jan.klare@bisdn.de>
diff --git a/vars/volthaStackDeploy.groovy b/vars/volthaStackDeploy.groovy
index 5ccae56..22d63f6 100644
--- a/vars/volthaStackDeploy.groovy
+++ b/vars/volthaStackDeploy.groovy
@@ -59,7 +59,8 @@
           --set global.voltha_infra_name=voltha-infra \
           --set voltha.onos_classic.replicas=${cfg.onosReplica} \
           --set voltha.ingress.enabled=true \
-          --set voltha.ingress.enableVirtualHosts=true \
+          --set voltha.ingress.hosts[0].host=voltha.${cfg.cluster} \
+          --set voltha.ingress.hosts[0].paths[0]='/voltha.VolthaService/' \
           --set global.voltha_infra_namespace=${cfg.infraNamespace} \
           ${cfg.extraHelmFlags}
 """)
@@ -328,6 +329,7 @@
         localCharts:     false,
         onosReplica:     1,
         adaptersToWait:  2,
+        cluster: 'voltha.local',
     ]
 
     Map cfg = defaultConfig + config