Align with VINO CR bmhLabels

This patchset makes minor changes to vino-builder to work with the
addition of bmhLabels in [0].

[0] https://review.opendev.org/c/airship/vino/+/782875

Change-Id: I5eb41a863c556b38c819f6da862265e153922fe7

vino-builder/assets/playbooks/roles/libvirt/library/core_allocation.py

@@ -96,7 +96,7 @@ def allocate_cores(nodes, flavors, exclude_cpu):
     # address the case where previous != desired - delete previous, re-run
     for node in nodes:
 
-        flavor = node['labels']['vmFlavor']
+        flavor = node['bmhLabels']['airshipit.org/k8s-role']
         vcpus = flavors[flavor]['vcpus']
 
         for num_node in range(0, node['count']):

vino-builder/assets/playbooks/roles/libvirt/tasks/create-domain.yaml

@@ -5,7 +5,7 @@
 
 - name: debug print virsh xml domain
   debug:
-    msg: "{{ flavorTemplates[node.labels.vmFlavor]['domainTemplate'] }}"
+    msg: "{{ flavorTemplates[node['bmhLabels']['airshipit.org/k8s-role']]['domainTemplate'] }}"
   loop: "{{ range(0,node.count)|list }}"
 
 - name: get state of existing volumes
@@ -14,7 +14,7 @@
   register: vol_list
 
 - name: write out domain volume request xml
-  copy: content="{{ flavorTemplates[node.labels.vmFlavor]['volumeTemplate'] }}" dest=/tmp/vol-{{item}}.xml
+  copy: content="{{ flavorTemplates[node['bmhLabels']['airshipit.org/k8s-role']]['volumeTemplate'] }}" dest=/tmp/vol-{{item}}.xml
   loop: "{{ range(0,node.count)|list }}"
 
 - name: create domain volume if it doesn't exist
@@ -35,7 +35,7 @@
 # to domains, so we must shell out here instead
 
 - name: write out domain volume request xml
-  copy: content="{{ flavorTemplates[node.labels.vmFlavor]['domainTemplate'] }}" dest=/tmp/domain-{{item}}.xml
+  copy: content="{{ flavorTemplates[node['bmhLabels']['airshipit.org/k8s-role']]['domainTemplate'] }}" dest=/tmp/domain-{{item}}.xml
   loop: "{{ range(0,node.count)|list }}"
 
 - name: virsh define domain