def is_importing(self, request):
"""@description-title Importing status
@description Get the status of importing resources.
@success (http-status-code) "server-success" 200
@success (content) "success-content-true"
true
@success (content) "success-content-false"
false
"""
return is_import_resources_running()
def poll(self, params):
"""Polling method that the websocket client calls.
Since boot resource information is split between the region and the
rack controllers the websocket uses a polling method to get the
updated information. Pushing the information at the moment is not
possible as no rack information is cached on the region side.
"""
try:
sources, releases, arches = get_os_info_from_boot_sources('ubuntu')
self.connection_error = False
self.ubuntu_sources = sources
self.ubuntu_releases = releases
self.ubuntu_arches = arches
except ConnectionError:
self.connection_error = True
self.ubuntu_sources = []
self.ubuntu_releases = set()
self.ubuntu_arches = set()
# Load all the nodes, so its not done on every call
# to the method get_number_of_nodes_deployed_for.
# XXX Danilo 2017-06-29: this used to also do
# .only('osystem', 'distro_series')
# but that caused "RecursionError: maximum recursion depth exceeded
# while calling a Python object" errors with Django 1.11 in
# maasserver.websockets.handlers.tests.test_bootresource
# tests. Since we are filtering on status field which is not in
# "only" anyway, I don't think we ever had the benefit of prefetching
# only those two fields.
self.nodes = Node.objects.filter(
status__in=[NODE_STATUS.DEPLOYED, NODE_STATUS.DEPLOYING])
self.default_osystem = Config.objects.get_config('default_osystem')
self.default_distro_series = Config.objects.get_config(
'default_distro_series')
# Load list of boot resources that currently exist on all racks.
rack_images = get_common_available_boot_images()
self.racks_syncing = is_import_boot_images_running()
self.rack_resources = (BootResource.objects.
get_resources_matching_boot_images(rack_images))
# Load all the resources and generate the JSON result.
resources = self.combine_resources(
BootResource.objects.filter(bootloader_type=None))
json_resources = [
dict(id=resource.id,
rtype=resource.rtype,
name=resource.name,
title=resource.title,
arch=resource.arch,
size=resource.size,
complete=resource.complete,
status=resource.status,
icon=resource.icon,
downloading=resource.downloading,
numberOfNodes=resource.number_of_nodes,
lastUpdate=resource.last_update.strftime(
"%a, %d %b. %Y %H:%M:%S")) for resource in resources
]
commissioning_series = Config.objects.get_config(
name='commissioning_distro_series')
json_ubuntu = dict(
sources=self.format_ubuntu_sources(),
releases=self.format_ubuntu_releases(),
arches=self.format_ubuntu_arches(),
commissioning_series=commissioning_series,
)
data = dict(
connection_error=self.connection_error,
region_import_running=is_import_resources_running(),
rack_import_running=self.racks_syncing,
resources=json_resources,
ubuntu=json_ubuntu,
ubuntu_core_images=self.format_ubuntu_core_images(),
other_images=self.format_other_images(),
)
return json.dumps(data)