Implement periodic tasks

JIRA: RELENG-12

The dashboard is now querying jenkins periodically and saving the
results in the database. This fixes delays that were caused by calling
the jenkins API.

Signed-off-by: maxbr <maxbr@mi.fu-berlin.de>

3 files changed, 33 insertions, 5 deletions

diff --git a/pharos-dashboard/pharos_dashboard/__init__.py b/pharos-dashboard/pharos_dashboard/__init__.py
index e69de29..b6fc817 100644
--- a/pharos-dashboard/pharos_dashboard/__init__.py
+++ b/pharos-dashboard/pharos_dashboard/__init__.py
@@ -0,0 +1,3 @@
+# This will make sure the app is always imported when
+# Django starts so that shared_task will use this app.
+from .celery import app as celery_app  # noqa
diff --git a/pharos-dashboard/pharos_dashboard/celery.py b/pharos-dashboard/pharos_dashboard/celery.py
new file mode 100644
index 0000000..4cf6a7a
--- /dev/null
+++ b/pharos-dashboard/pharos_dashboard/celery.py
@@ -0,0 +1,20 @@
+import os
+
+from celery import Celery
+
+# set the default Django settings module for the 'celery' program.
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'pharos_dashboard.settings')
+
+from django.conf import settings  # noqa
+
+app = Celery('pharos_dashboard')
+
+# Using a string here means the worker will not have to
+# pickle the object when using Windows.
+app.config_from_object('django.conf:settings')
+app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)
+
+
+@app.task(bind=True)
+def debug_task(self):
+    print('Request: {0!r}'.format(self.request))
\ No newline at end of file
diff --git a/pharos-dashboard/pharos_dashboard/settings.py b/pharos-dashboard/pharos_dashboard/settings.py
index b6e9899..7717501 100644
--- a/pharos-dashboard/pharos_dashboard/settings.py
+++ b/pharos-dashboard/pharos_dashboard/settings.py
@@ -15,7 +15,6 @@ import os
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
-
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/1.10/howto/deployment/checklist/
 
@@ -27,7 +26,6 @@ DEBUG = True
 
 ALLOWED_HOSTS = []
 
-
 # Application definition
 
 INSTALLED_APPS = [
@@ -43,6 +41,8 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
     'django.contrib.humanize',
     'bootstrap3',
+    'djcelery',
+    'kombu.transport.django',
 ]
 
 MIDDLEWARE = [
@@ -77,7 +77,6 @@ TEMPLATES = [
 
 WSGI_APPLICATION = 'pharos_dashboard.wsgi.application'
 
-
 # Database
 # https://docs.djangoproject.com/en/1.10/ref/settings/#databases
 
@@ -92,7 +91,6 @@ DATABASES = {
     }
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/1.10/ref/settings/#auth-password-validators
 
@@ -124,7 +122,6 @@ USE_L10N = True
 
 USE_TZ = True
 
-
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/1.10/howto/static-files/
 
@@ -139,3 +136,11 @@ BOOTSTRAP3 = {
 }
 
 LOGIN_REDIRECT_URL = '/'
+
+import djcelery
+
+djcelery.setup_loader()
+# django broker, NOT SAFE FOR PRODUCTION
+BROKER_URL = 'django://'
+CELERYBEAT_SCHEDULER = 'djcelery.schedulers.DatabaseScheduler'
+