Add map-services

map-services is used by os-svc-restart from Change-Id:
I15eb2a5db4b0a08e1fb40bda640cd8f224939a92

map-services is not only distro specific, it also needs to be able to
handle different service names for a given distro based on source vs
package installs, since the service names may be different. This is done
via a simple check if the requested service is defined, if it is, we
print the requested name, otherwise, we print the mapped name.

Currently only implemented for Fedora. Support for other distros is
easily implemented just like map-packages.

Change-Id: Ie7b2dcfa7cabd887d5c212df110d90f9d00a7f65

elements/fedora/bin/map-services

@@ -0,0 +1,50 @@
+#!/bin/env python
+
+# Copyright 2012 Hewlett-Packard Development Company, L.P.
+# Copyright 2014 Red Hat, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import os
+import sys
+
+# Manually maintained for brevity; consider making this compiled from
+# distromatch or other rich data sources.
+# TripleO service name on the left, Fedora on the right.
+service_map = {
+        'glance-api': 'openstack-glance-api',
+        'glance-reg': 'openstack-glance-registry',
+        'heat-api': 'openstack-heat-api',
+        'heat-api-cfn': 'openstack-heat-api-cfn',
+        'heat-api-cloudwatch': 'openstack-heat-api-cloudwatch',
+        'heat-engine': 'openstack-heat-engine',
+        'keystone': 'openstack-keystone',
+        'nova-conductor': 'openstack-nova-conductor',
+        'nova-api': 'openstack-nova-api',
+        'nova-cert': 'openstack-nova-cert',
+        'nova-scheduler': 'openstack-nova-scheduler',
+        'nova-consoleauth': 'openstack-nova-consoleauth',
+        'nova-compute': 'openstack-nova-compute',
+        'swift-proxy': 'openstack-swift-proxy',
+    }
+
+for arg in sys.argv[1:]:
+    # We need to support the service name being different when installing from
+    # source vs. packages. So, if the requested service file already exists,
+    # just use that.
+    if os.path.exists('/lib/systemd/system/%s.service' % arg):
+        print arg
+    else:
+        print(service_map.get(arg, arg))
+sys.exit(0)