Pass node and volume name prefixes to tenks_update_state

node_name_prefix (default tk0) can be used to set a custom prefix for the node
names.

vol_name_prefix (default vol) can be used to set a custom prefix for the volume
names.

Support already existed for these in the action plugin, but the variables were
not passed through.

Change-Id: If968707285f9a8450bf16ca7a4956de6164986de
TrivialFix

ansible/action_plugins/tenks_update_state.py

@@ -34,7 +34,7 @@ class ActionModule(ActionBase):
             * Generating indices for physical networks for each hypervisor.
             * Scheduling specifications of nodes by type onto hypervisors.
 
-        The following task vars are accepted:
+        The following task arguments are accepted:
             :hypervisor_vars: A dict of hostvars for each hypervisor, keyed
                               by hypervisor hostname. Required.
             :specs: A list of node specifications to be instantiated. Required.

ansible/schedule.yml

@@ -35,9 +35,11 @@
     - name: Get updated state
       tenks_update_state:
         hypervisor_vars: "{{ hypervisor_vars }}"
+        node_name_prefix: "{{ node_name_prefix | default(omit) }}"
         node_types: "{{ node_types }}"
         specs: "{{ specs }}"
         state: "{{ current_state | default(omit) }}"
+        vol_name_prefix: "{{ vol_name_prefix | default(omit) }}"
       register: new_state
 
     - name: Write new state to file