fix(celery): setup statsd on celery

rhodecode/lib/celerylib/loader.py

@@ -162,7 +162,11 b" def _init_celery(app_type=''):"
 
     log.debug('Got Pyramid ENV: %s', env)
 
-    celery_settings = get_celery_config(env['registry'].settings)
+    settings = env['registry'].settings
+    celery_settings = get_celery_config(settings)
+
+    # init and bootstrap StatsdClient
+    StatsdClient.setup(settings)
 
     setup_celery_app(
         app=env['app'], root=env['root'], request=env['request'],
@@ -188,10 +192,11 b' def on_beat_init(sender=None, conf=None,'
 def task_prerun_signal(task_id, task, args, **kwargs):
     ping_db()
     statsd = StatsdClient.statsd
+
     if statsd:
         task_repr = getattr(task, 'name', task)
         statsd.incr('rhodecode_celery_task_total', tags=[
-            'task:{}'.format(task_repr),
+            f'task:{task_repr}',
             'mode:async'
         ])