class Queuer(object):
def __init__(self, conf, **local_conf):
self.conf = conf
self.cache = ImageCache(conf)
registry.configure_registry_client(conf)
def queue_image(self, image_id):
ctx = \
registry.get_client_context(conf, is_admin=True, show_deleted=True)
try:
image_meta = registry.get_image_metadata(ctx, image_id)
if image_meta['status'] != 'active':
logger.warn(_("Image '%s' is not active. Not queueing."),
image_id)
return False
except exception.NotFound:
logger.warn(_("No metadata found for image '%s'"), image_id)
return False
logger.debug(_("Queueing image '%s'"), image_id)
self.cache.queue_image(image_id)
return True
def run(self, images):
num_images = len(images)
if num_images == 0:
logger.debug(_("No images to queue!"))
return True
logger.debug(_("Received %d images to queue"), num_images)
pool = eventlet.GreenPool(num_images)
results = pool.imap(self.queue_image, images)
successes = sum([1 for r in results if r is True])
if successes != num_images:
logger.error(_("Failed to successfully queue all "
"images in queue."))
return False
logger.info(_("Successfully queued all %d images"), num_images)
return True
