horizon/openstack_dashboard/dashboards/admin/instances/views.py

342 lines
13 KiB
Python

# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 OpenStack Foundation
# Copyright 2012 Nebula, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from django.urls import reverse
from django.urls import reverse_lazy
from django.utils.translation import gettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import tables
from horizon.utils import memoized
from openstack_dashboard import api
from openstack_dashboard.dashboards.admin.instances \
import forms as project_forms
from openstack_dashboard.dashboards.admin.instances \
import tables as project_tables
from openstack_dashboard.dashboards.admin.instances import tabs
from openstack_dashboard.dashboards.project.instances import views
from openstack_dashboard.dashboards.project.instances.workflows \
import update_instance
from openstack_dashboard.utils import futurist_utils
from openstack_dashboard.utils import settings as setting_utils
# re-use console from project.instances.views to make reflection work
def console(args, **kvargs):
return views.console(args, **kvargs)
# re-use vnc from project.instances.views to make reflection work
def vnc(args, **kvargs):
return views.vnc(args, **kvargs)
# re-use spice from project.instances.views to make reflection work
def spice(args, **kvargs):
return views.spice(args, **kvargs)
# re-use rdp from project.instances.views to make reflection work
def rdp(args, **kvargs):
return views.rdp(args, **kvargs)
# re-use mks from project.instances.views to make reflection work
def mks(args, **kvargs):
return views.mks(args, **kvargs)
class AdminUpdateView(views.UpdateView):
workflow_class = update_instance.AdminUpdateInstance
success_url = reverse_lazy("horizon:admin:instances:index")
class AdminIndexView(tables.PagedTableMixin, tables.DataTableView):
table_class = project_tables.AdminInstancesTable
page_title = _("Instances")
def has_prev_data(self, table):
return getattr(self, "_prev", False)
def has_more_data(self, table):
return self._more
def needs_filter_first(self, table):
return self._needs_filter_first
def _get_tenants(self):
# Gather our tenants to correlate against IDs
try:
tenants, __ = api.keystone.tenant_list(self.request)
return dict((t.id, t) for t in tenants)
except Exception:
msg = _('Unable to retrieve instance project information.')
exceptions.handle(self.request, msg)
return {}
def _get_images(self):
# Gather our images to correlate our instances to them
try:
# Community images have to be retrieved separately and merged,
# because their visibility has to be explicitly defined in the
# API call and the Glance API currently does not support filtering
# by multiple values in the visibility field.
# TODO(gabriel): Handle pagination.
images = api.glance.image_list_detailed(self.request)[0]
community_images = api.glance.image_list_detailed(
self.request, filters={'visibility': 'community'})[0]
image_map = {
image.id: image for image in images
}
# Images have to be filtered by their uuids; some users
# have default access to certain community images.
for image in community_images:
image_map.setdefault(image.id, image)
return image_map
except Exception:
exceptions.handle(self.request, ignore=True)
return {}
def _get_images_by_name(self, image_name):
result = api.glance.image_list_detailed(
self.request, filters={'name': image_name})
images = result[0]
return dict((image.id, image) for image in images)
def _get_flavors(self):
# Gather our flavors to correlate against IDs
try:
flavors = api.nova.flavor_list(self.request)
return dict((str(flavor.id), flavor) for flavor in flavors)
except Exception:
msg = _("Unable to retrieve flavor list.")
exceptions.handle(self.request, msg)
return {}
def _get_instances(self, search_opts, sort_dir):
try:
instances, self._more, self._prev = api.nova.server_list_paged(
self.request,
search_opts=search_opts,
sort_dir=sort_dir)
except Exception:
self._more = self._prev = False
instances = []
exceptions.handle(self.request,
_('Unable to retrieve instance list.'))
return instances
def _get_volumes(self):
# Gather our volumes to get their image metadata for instance
try:
volumes = api.cinder.volume_list(self.request)
return dict((str(volume.id), volume) for volume in volumes)
except Exception:
exceptions.handle(self.request, ignore=True)
return {}
def get_data(self):
marker, sort_dir = self._get_marker()
default_search_opts = {'marker': marker,
'paginate': True,
'all_tenants': True}
search_opts = self.get_filters(default_search_opts.copy())
# If filter_first is set and if there are not other filters
# selected, then search criteria must be provided and return an empty
# list
if (setting_utils.get_dict_config('FILTER_DATA_FIRST',
'admin.instances') and
len(search_opts) == len(default_search_opts)):
self._needs_filter_first = True
self._more = False
return []
self._needs_filter_first = False
results = futurist_utils.call_functions_parallel(
self._get_images,
self._get_volumes,
self._get_flavors,
self._get_tenants)
image_dict, volume_dict, flavor_dict, tenant_dict = results
non_api_filter_info = [
('project', 'tenant_id', tenant_dict.values()),
('flavor_name', 'flavor', flavor_dict.values()),
]
filter_by_image_name = 'image_name' in search_opts
if filter_by_image_name:
image_dict = self._get_images_by_name(search_opts['image_name'])
non_api_filter_info.append(
('image_name', 'image', image_dict.values())
)
if not views.process_non_api_filters(search_opts, non_api_filter_info):
self._more = False
return []
instances = self._get_instances(search_opts, sort_dir)
if not filter_by_image_name:
image_dict = self._get_images()
# Loop through instances to get image, flavor and tenant info.
for inst in instances:
self._populate_image_info(inst, image_dict, volume_dict)
if hasattr(inst, 'image') and isinstance(inst.image, dict):
image_id = inst.image.get('id')
if image_id in image_dict:
inst.image = image_dict[image_id]
# In case image not found in image_map, set name to empty
# to avoid fallback API call to Glance in api/nova.py
# until the call is deprecated in api itself
else:
inst.image['name'] = _("-")
flavor_id = inst.flavor["id"]
try:
if flavor_id in flavor_dict:
inst.full_flavor = flavor_dict[flavor_id]
else:
# If the flavor_id is not in flavor_dict list,
# gets it via nova api.
inst.full_flavor = api.nova.flavor_get(
self.request, flavor_id)
except Exception:
msg = _('Unable to retrieve instance size information.')
exceptions.handle(self.request, msg)
tenant = tenant_dict.get(inst.tenant_id, None)
inst.tenant_name = getattr(tenant, "name", None)
return instances
def _populate_image_info(self, instance, image_dict, volume_dict):
if not hasattr(instance, 'image'):
return
# Instance from image returns dict
if isinstance(instance.image, dict):
image_id = instance.image.get('id')
if image_id in image_dict:
instance.image = image_dict[image_id]
# In case image not found in image_dict, set name to empty
# to avoid fallback API call to Glance in api/nova.py
# until the call is deprecated in api itself
else:
instance.image['name'] = _("-")
# Otherwise trying to get image from volume metadata
else:
instance_volumes = [
attachment
for volume in volume_dict.values()
for attachment in volume.attachments
if attachment['server_id'] == instance.id
]
# While instance from volume is being created,
# it does not have volumes
if not instance_volumes:
return
# Sorting attached volumes by device name (eg '/dev/sda')
instance_volumes.sort(key=lambda attach: attach['device'])
# Getting volume object, which is as attached
# as the first device
boot_volume = volume_dict[instance_volumes[0]['id']]
# There is a case where volume_image_metadata contains
# only fields other than 'image_id' (See bug 1834747),
# so we try to populate image information only when it is found.
volume_metadata = getattr(boot_volume, "volume_image_metadata", {})
image_id = volume_metadata.get('image_id')
if image_id:
try:
instance.image = image_dict[image_id].to_dict()
except KeyError:
# KeyError occurs when volume was created from image and
# then this image is deleted.
pass
class LiveMigrateView(forms.ModalFormView):
form_class = project_forms.LiveMigrateForm
template_name = 'admin/instances/live_migrate.html'
context_object_name = 'instance'
success_url = reverse_lazy("horizon:admin:instances:index")
page_title = _("Live Migrate")
success_label = page_title
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["instance_id"] = self.kwargs['instance_id']
return context
@memoized.memoized_method
def get_hosts(self, *args, **kwargs):
try:
services = api.nova.service_list(self.request,
binary='nova-compute')
return [s.host for s in services]
except Exception:
redirect = reverse("horizon:admin:instances:index")
msg = _('Unable to retrieve host information.')
exceptions.handle(self.request, msg, redirect=redirect)
@memoized.memoized_method
def get_object(self, *args, **kwargs):
instance_id = self.kwargs['instance_id']
try:
return api.nova.server_get(self.request, instance_id)
except Exception:
redirect = reverse("horizon:admin:instances:index")
msg = _('Unable to retrieve instance details.')
exceptions.handle(self.request, msg, redirect=redirect)
def get_initial(self):
initial = super().get_initial()
_object = self.get_object()
if _object:
current_host = getattr(_object, 'OS-EXT-SRV-ATTR:host', '')
initial.update({'instance_id': self.kwargs['instance_id'],
'current_host': current_host,
'hosts': self.get_hosts()})
return initial
class DetailView(views.DetailView):
tab_group_class = tabs.AdminInstanceDetailTabs
redirect_url = 'horizon:admin:instances:index'
image_url = 'horizon:admin:images:detail'
volume_url = 'horizon:admin:volumes:detail'
def _get_actions(self, instance):
table = project_tables.AdminInstancesTable(self.request)
return table.render_row_actions(instance)
class RescueView(views.RescueView):
form_class = project_forms.RescueInstanceForm
submit_url = "horizon:admin:instances:rescue"
success_url = reverse_lazy('horizon:admin:instances:index')
template_name = 'admin/instances/rescue.html'
def get_initial(self):
return {'instance_id': self.kwargs["instance_id"]}