planetstack/openstack_observer/steps/sync_images.py

   1 import os
   2 import base64
   3 from django.db.models import F, Q
   4 from planetstack.config import Config
   5 from observer.openstacksyncstep import OpenStackSyncStep
   6 from core.models.image import Image
   7
   8 class SyncImages(OpenStackSyncStep):
   9     provides=[Image]
  10     requested_interval=0
  11
  12     def fetch_pending(self, deleted):
  13         # Images come from the back end
  14         # You can't delete them
  15         if (deleted):
  16             return []
  17
  18         # get list of images on disk
  19         images_path = Config().observer_images_directory
  20         available_images = {}
  21         for f in os.listdir(images_path):
  22             if os.path.isfile(os.path.join(images_path ,f)):
  23                 available_images[f] = os.path.join(images_path ,f)
  24
  25         images = Image.objects.all()
  26         image_names = [image.name for image in images]
  27
  28         for image_name in available_images:
  29             #remove file extension
  30             clean_name = ".".join(image_name.split('.')[:-1])
  31             if clean_name not in image_names:
  32                 image = Image(name=clean_name,
  33                               disk_format='raw',
  34                               container_format='bare',
  35                               path = available_images[image_name])
  36                 image.save()
  37
  38
  39         return Image.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
  40
  41     def sync_record(self, image):
  42         image.save()