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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# 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.
"""
Views for managing Nova images.
"""
import logging
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _
from horizon import api
from horizon import exceptions
from horizon import forms
from horizon import tabs
from .forms import UpdateImageForm, LaunchForm
from .tabs import ImageDetailTabs
LOG = logging.getLogger(__name__)
class LaunchView(forms.ModalFormView):
form_class = LaunchForm
template_name = 'nova/images_and_snapshots/images/launch.html'
context_object_name = 'image'
def get_form_kwargs(self):
kwargs = super(LaunchView, self).get_form_kwargs()
kwargs['flavor_list'] = self.flavor_list()
kwargs['keypair_list'] = self.keypair_list()
kwargs['security_group_list'] = self.security_group_list()
kwargs['volume_list'] = self.volume_list()
return kwargs
def get_object(self, *args, **kwargs):
image_id = self.kwargs["image_id"]
try:
self.object = api.image_get_meta(self.request, image_id)
except:
msg = _('Unable to retrieve image "%s".') % image_id
redirect = reverse('horizon:nova:images_and_snapshots:index')
exceptions.handle(self.request, msg, redirect=redirect)
return self.object
def get_context_data(self, **kwargs):
context = super(LaunchView, self).get_context_data(**kwargs)
try:
context['usages'] = api.tenant_quota_usages(self.request)
except:
exceptions.handle(self.request)
return context
def get_initial(self):
return {'image_id': self.kwargs["image_id"],
'tenant_id': self.request.user.tenant_id}
def flavor_list(self):
display = '%(name)s (%(vcpus)sVCPU / %(disk)sGB Disk / %(ram)sMB Ram )'
try:
flavors = api.flavor_list(self.request)
flavor_list = [(flavor.id, display % {"name": flavor.name,
"vcpus": flavor.vcpus,
"disk": flavor.disk,
"ram": flavor.ram})
for flavor in flavors]
except:
flavor_list = []
exceptions.handle(self.request,
_('Unable to retrieve instance flavors.'))
return sorted(flavor_list)
def keypair_list(self):
try:
keypairs = api.keypair_list(self.request)
keypair_list = [(kp.name, kp.name) for kp in keypairs]
except:
keypair_list = []
exceptions.handle(self.request,
_('Unable to retrieve keypairs.'))
return keypair_list
def security_group_list(self):
try:
groups = api.security_group_list(self.request)
security_group_list = [(sg.name, sg.name) for sg in groups]
except:
exceptions.handle(self.request,
_('Unable to retrieve list of security groups'))
security_group_list = []
return security_group_list
def volume_list(self):
volume_options = [("", _("Select Volume"))]
def _get_volume_select_item(volume):
if hasattr(volume, "volume_id"):
vol_type = "snap"
visible_label = _("Snapshot")
else:
vol_type = "vol"
visible_label = _("Volume")
return (("%s:%s:%s" % (volume.id, vol_type, volume.size)),
("%s - %s GB (%s)" % (volume.display_name,
volume.size,
visible_label)))
# First add volumes to the list
try:
volumes = [v for v in api.volume_list(self.request) \
if v.status == api.VOLUME_STATE_AVAILABLE]
volume_options.extend(
[_get_volume_select_item(vol) for vol in volumes])
except:
exceptions.handle(self.request,
_('Unable to retrieve list of volumes'))
# Next add volume snapshots to the list
try:
snapshots = api.volume_snapshot_list(self.request)
snapshots = [s for s in snapshots \
if s.status == api.VOLUME_STATE_AVAILABLE]
volume_options.extend(
[_get_volume_select_item(snap) for snap in snapshots])
except:
exceptions.handle(self.request,
_('Unable to retrieve list of volumes'))
return volume_options
class UpdateView(forms.ModalFormView):
form_class = UpdateImageForm
template_name = 'nova/images_and_snapshots/images/update.html'
context_object_name = 'image'
def get_object(self, *args, **kwargs):
try:
self.object = api.image_get_meta(self.request, kwargs['image_id'])
except:
msg = _('Unable to retrieve image "%s".') % kwargs['image_id']
redirect = reverse('horizon:nova:images_and_snapshots:index')
exceptions.handle(self.request, msg, redirect=redirect)
return self.object
def get_initial(self):
properties = self.object['properties']
return {'image_id': self.kwargs['image_id'],
'name': self.object.get('name', ''),
'kernel': properties.get('kernel_id', ''),
'ramdisk': properties.get('ramdisk_id', ''),
'architecture': properties.get('architecture', ''),
'container_format': self.object.get('container_format', ''),
'disk_format': self.object.get('disk_format', ''),
'public': self.object.get('is_public')}
class DetailView(tabs.TabView):
tab_group_class = ImageDetailTabs
template_name = 'nova/images_and_snapshots/images/detail.html'
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