Name docker client like mentioned in the api docs

app/scheduler_functions.py

@@ -9,7 +9,7 @@ import os
 def check_jobs():
     app = create_minimal_app(os.getenv('FLASK_CONFIG') or 'default')
     app.app_context().push()
-    docker_client = docker.from_env()
+    client = docker.from_env()
     jobs = db.session.query(Job)
     submitted_jobs = jobs.filter_by(status='submitted').all()
     foo_jobs = jobs.filter(Job.status != 'complete',
@@ -54,12 +54,8 @@ def check_jobs():
         '       has the required ressources available (not reserved), the
         '       service gets queued by the Docker engine until a node is able
         '       to meet the requirements.
-        '
-        ' TODO: The name argument should be used with the prepared value
-        '       (name=_name). Because there is no id generator for now, it is
-        '       not set, so that the Docker engine assigns a random name.
         '''
-        service = docker_client.services.create(
+        service = client.services.create(
             _image,
             command=_command,
             constraints=_constraints,
@@ -74,7 +70,7 @@ def check_jobs():
         '''
         ' TODO: Handle service not found error.
         '''
-        service = docker_client.services.get(str(job.id))
+        service = client.services.get(str(job.id))
         job.status = service.tasks()[0].get('Status').get('State')
         if job.status == 'complete' or job.status == 'failed':
             job.end_date = datetime.utcnow()