Add client API to configuration

roles/pvc/templates/pvc/pvc-api.yaml.j2

@@ -0,0 +1,13 @@
+---
+# pvc-api client configuration
+# {{ ansible_managed }}
+pvc:
+    coordinators:
+{% for node in pvc_nodes if node.is_coordinator %}
+        - {{ node.hostname }}.{{ pvc_cluster_domain }}
+{% endfor %}
+    api:
+        listen_address: "{{ pvc_api_listen_address }}"
+        listen_port: "{{ pvc_api_listen_port }}"
+        authentication:
+            key: "{{ pvc_api_authentication_key }}"