Add support for use-internal-endpoints

Add support for use of internal endpoints for inter-service
API calls from ceilometer.

Change-Id: Id702de85fb2236f21773ee7f2fb3698012b5f16c
Closes-Bug: 1713923

config.yaml

@@ -228,3 +228,10 @@ options:
     description: |
       Archive retention policy to use when Ceilometer is deployed with
       Gnocchi for resource, metric and measures storage.
+  use-internal-endpoints:
+    type: boolean
+    default: False
+    description: |
+      Openstack mostly defaults to using public endpoints for
+      internal communication between services. If set to True this option
+      will configure services to use internal endpoints where possible.

lib/ceilometer_utils.py

@@ -116,6 +116,7 @@ CONFIG_FILES = OrderedDict([
         'hook_contexts': [context.IdentityServiceContext(service=SVC,
                                                          service_user=SVC),
                           context.AMQPContext(ssl_dir=CEILOMETER_CONF_DIR),
+                          context.InternalEndpointContext(),
                           LoggingConfigContext(),
                           MongoDBContext(),
                           CeilometerContext(),

templates/icehouse/ceilometer.conf

@@ -19,6 +19,9 @@ os_auth_url = {{ service_protocol }}://{{ service_host }}:{{ service_port }}/v2.
 os_tenant_name = {{ admin_tenant_name }}
 os_username = {{ admin_user }}
 os_password = {{ admin_password }}
+{% if use_internal_endpoints -%}
+interface = internalURL
+{%- endif %}
 
 [database]
 {% if db_replset: -%}

templates/kilo/ceilometer.conf

@@ -20,6 +20,9 @@ os_auth_url = {{ service_protocol }}://{{ service_host }}:{{ service_port }}/v2.
 os_tenant_name = {{ admin_tenant_name }}
 os_username = {{ admin_user }}
 os_password = {{ admin_password }}
+{% if use_internal_endpoints -%}
+interface = internalURL
+{%- endif %}
 
 [database]
 {% if db_replset: -%}

templates/mitaka/ceilometer.conf

@@ -36,6 +36,9 @@ project_domain_name = default
 user_domain_name = default
 {% endif -%}
 auth_type = password
+{% if use_internal_endpoints -%}
+interface = internalURL
+{%- endif %}
 {% endif -%}
 
 {% if db_host or db_mongo_servers -%}

templates/ocata/ceilometer.conf

@@ -35,6 +35,9 @@ project_domain_name = default
 user_domain_name = default
 {% endif -%}
 auth_type = password
+{% if use_internal_endpoints -%}
+interface = internalURL
+{%- endif %}
 {% endif -%}
 
 {% if db_host or db_mongo_servers -%}