kolla_url: port is a string

Ansible passes port as a string - therefore matching does not work
and we get https://nova_url:443/v2.1

Closes-Bug: #2063434

Change-Id: I76cce7f491c77b6b788d29c8644e87055f5cfff0
(cherry picked from commit 2c0f94a868ce712a7b13ac1755f20a5cdc950535)

kolla_ansible/kolla_url.py

@@ -28,6 +28,7 @@ def kolla_url(fqdn, protocol, port, path='', context='url'):
     """
 
     fqdn = put_address_in_context(fqdn, context)
+    port = int(port)
 
     if ((protocol == 'http' and port == 80) or
        (protocol == 'https' and port == 443) or

zuul.d/base.yaml

@@ -282,6 +282,7 @@
     voting: false
     files:
       - ^ansible/roles/haproxy/
+      - ^kolla_ansible/kolla_url.py
     vars:
       external_api_interface_name: vxlan2
       external_api_network_prefix: "192.0.3."