Move to dockerflow lib

requirements.txt

@@ -3,6 +3,7 @@ dj-database-url==0.4.2
 Django==1.10.8
 djangorestframework==3.6.3
 google-api-python-client==1.6.2
+dockerflow==2017.11.0
 gunicorn==19.7.1
 httplib2==0.10.3
 oauth2client==4.1.2

viewer/settings.py

@@ -40,6 +40,7 @@ INSTALLED_APPS = [
     'rest_framework',
     'viewer.api',
     'viewer.core',
+    'dockerflow.django',
 ]
 
 MIDDLEWARE_CLASSES = [
@@ -51,6 +52,7 @@ MIDDLEWARE_CLASSES = [
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
+    'dockerflow.django.middleware.DockerflowMiddleware',
 ]
 
 ROOT_URLCONF = 'viewer.urls'

viewer/urls.py

@@ -3,7 +3,6 @@ from django.contrib.auth.decorators import login_required
 from django.contrib.auth import views as auth_views
 from django.views.generic import TemplateView
 
-from . import views
 from .admin import admin_site
 from .api.views import login_view, metric, metrics, verify_google_token
 
@@ -18,11 +17,6 @@ urlpatterns = [
     url(r'^verify_google_token/$', verify_google_token,
         name='verify_google_token'),
 
-    # Cloudops URL requirements.
-    url(r'^__version__', views.ops_version, name='ops-version'),
-    url(r'^__heartbeat__', views.ops_heartbeat, name='ops-heartbeat'),
-    url(r'^__lbheartbeat__', views.ops_lbheartbeat, name='ops-lbheartbeat'),
-
     # The catch-all.
     url(r'.*', login_required(TemplateView.as_view(
         template_name='viewer/index.html')), name='index'),

viewer/views.py

@@ -1,35 +0,0 @@
-import json
-import os.path
-
-from django.conf import settings
-from django.http import HttpResponse, HttpResponseServerError, JsonResponse
-
-from .api.models import Metric
-
-
-def ops_lbheartbeat(request):
-    return HttpResponse('ok')
-
-
-def ops_heartbeat(request):
-    try:
-        # Check the database by counting Metrics.
-        Metric.objects.count()
-        # TODO: Add checks for other dependencies as we add them
-        return HttpResponse('ok')
-    except:
-        return HttpResponseServerError('database failure')
-
-
-def ops_version(request):
-    # TODO: Generate this via TravisCI.
-    VERSION_FN = '%s/version.json' % settings.BASE_DIR
-    if os.path.exists(VERSION_FN):
-        data = json.load(open(VERSION_FN, 'r'))
-    else:
-        data = {
-            "source": "https://github.com/mozilla/distribution-viewer.git",
-            "version": "dev",
-            "commit": "dev"
-        }
-    return JsonResponse(data)