Move collector server url to settings.yaml

Since we don't have different collector servers anymore we can move
url to settings.yaml to avoid hardcoded values in code.

Change-Id: Ic1e1a29e0bc6ccccbdc50fe219197430c6efd012
Closes-Bug: #1556773

nailgun/nailgun/settings.yaml

@@ -78,6 +78,7 @@ RPC_CONSUMER_LOG_PATH: "/var/log/nailgun/receiverd.log"
 
 ASSASSIN_LOG_PATH: "/var/log/nailgun/assassind.log"
 
+COLLECTOR_SERVER: "collector.fuel-infra.org"
 COLLECTOR_ACTION_LOGS_URL: "https://{collector_server}/api/v1/action_logs/"
 COLLECTOR_INST_INFO_URL: "https://{collector_server}/api/v1/installation_structure/"
 COLLECTOR_OSWL_INFO_URL: "https://{collector_server}/api/v1/oswl_stats/"

nailgun/nailgun/statistics/statsenderd.py

@@ -38,11 +38,9 @@ logger = logging.getLogger('statistics')
 
 class StatsSender(object):
 
-    COLLECTOR_COMMUNITY_SERVER = "collector.fuel-infra.org"
-
     def build_collector_url(self, url_template):
         return getattr(settings, url_template)\
-            .format(collector_server=self.COLLECTOR_COMMUNITY_SERVER)
+            .format(collector_server=settings.COLLECTOR_SERVER)
 
     def ping_collector(self):
         try:

nailgun/nailgun/test/unit/fuel_statistics_tests/test_statsender.py

@@ -53,7 +53,7 @@ class TestStatisticsSender(BaseTestCase):
 
     @patch.dict('nailgun.settings.settings.VERSION', FEATURE_EXPERIMENTAL)
     def test_community_collector_urls(self):
-        self.check_collector_urls(StatsSender.COLLECTOR_COMMUNITY_SERVER)
+        self.check_collector_urls(settings.COLLECTOR_SERVER)
 
     @patch('nailgun.statistics.statsenderd.requests.get')
     def test_ping_ok(self, requests_get):