Ensure inspector uses internal ironic interface

Kolla-ansible typically configures services to access the internal API
endpoint of other services, rather than the default public endpoint.

This change ensures that this is the case for ironic inspector.

Change-Id: I998f12435fc1bd306444f9a68bd7f99f5b78f6f8
Closes-Bug: #1740591

ansible/roles/ironic/templates/ironic-inspector.conf.j2

@@ -13,6 +13,7 @@ user_domain_id = {{ default_user_domain_id }}
 project_name = service
 username = {{ ironic_inspector_keystone_user }}
 password = {{ ironic_inspector_keystone_password }}
+os_endpoint_type = internalURL
 
 [keystone_authtoken]
 auth_uri = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}

releasenotes/notes/inspector-ironic-interface-6e98d6bc3d5713b8.yaml

+---
+fixes:
+  - |
+    Fixes an issue where the Bare Metal Inspection service was configured to
+    communicate with the Bare Metal service via the public API interface.
+    Communication is now via the internal API interface.