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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2011 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 import shortcuts
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.utils.translation import ugettext as _
from glance.common import exception as glance_exception
from novaclient import exceptions as novaclient_exceptions
from openstackx.api import exceptions as api_exceptions
from horizon import api
from horizon.dashboards.nova.images.forms import (UpdateImageForm,
LaunchForm, DeleteImage)
LOG = logging.getLogger(__name__)
@login_required
def index(request):
for f in (DeleteImage, ):
unused, handled = f.maybe_handle(request)
if handled:
return handled
delete_form = DeleteImage()
all_images = []
try:
all_images = api.image_list_detailed(request)
if not all_images:
messages.info(request, _("There are currently no images."))
except glance_exception.ClientConnectionError, e:
LOG.exception("Error connecting to glance")
messages.error(request, _("Error connecting to glance: %s") % str(e))
except glance_exception.Error, e:
LOG.exception("Error retrieving image list")
messages.error(request, _("Error retrieving image list: %s") % str(e))
except api_exceptions.ApiException, e:
msg = _("Unable to retreive image info from glance: %s") % str(e)
LOG.exception(msg)
messages.error(request, msg)
images = [im for im in all_images
if im['container_format'] not in ['aki', 'ari']]
return shortcuts.render(request,
'nova/images/index.html', {
'delete_form': delete_form,
'images': images})
@login_required
def launch(request, image_id):
def flavorlist():
try:
fl = api.flavor_list(request)
# TODO add vcpu count to flavors
sel = [(f.id, '%s (%svcpu / %sGB Disk / %sMB Ram )' %
(f.name, f.vcpus, f.disk, f.ram)) for f in fl]
return sorted(sel)
except api_exceptions.ApiException:
LOG.exception('Unable to retrieve list of instance types')
return [(1, 'm1.tiny')]
def keynamelist():
try:
fl = api.keypair_list(request)
sel = [(f.name, f.name) for f in fl]
return sel
except api_exceptions.ApiException:
LOG.exception('Unable to retrieve list of keypairs')
return []
def securitygrouplist():
try:
fl = api.security_group_list(request)
sel = [(f.name, f.name) for f in fl]
return sel
except novaclient_exceptions.ClientException, e:
LOG.exception('Unable to retrieve list of security groups')
return []
tenant_id = request.user.tenant_id
# TODO(mgius): Any reason why these can't be after the launchform logic?
# If The form is valid, we've just wasted these two api calls
image = api.image_get(request, image_id)
quotas = api.tenant_quota_get(request, request.user.tenant_id)
try:
quotas.ram = int(quotas.ram)
except Exception, e:
messages.error(request,
_('Error parsing quota for %(image)s: %(msg)s') %
{"image": image_id, "msg": e.message})
return shortcuts.redirect('horizon:nova:instances:index')
form, handled = LaunchForm.maybe_handle(
request, initial={'flavorlist': flavorlist(),
'keynamelist': keynamelist(),
'securitygrouplist': securitygrouplist(),
'image_id': image_id,
'tenant_id': tenant_id})
if handled:
return handled
return shortcuts.render(request,
'nova/images/launch.html', {
'image': image,
'form': form,
'quotas': quotas})
@login_required
def update(request, image_id):
try:
image = api.image_get(request, image_id)
except glance_exception.ClientConnectionError, e:
LOG.exception("Error connecting to glance")
messages.error(request, _("Error connecting to glance: %s")
% e.message)
except glance_exception.Error, e:
LOG.exception('Error retrieving image with id "%s"' % image_id)
messages.error(request,
_("Error retrieving image %(image)s: %(msg)s")
% {"image": image_id, "msg": e.message})
form, handled = UpdateImageForm().maybe_handle(request, initial={
'image_id': image_id,
'name': image.get('name', ''),
'kernel': image['properties'].get('kernel_id', ''),
'ramdisk': image['properties'].get('ramdisk_id', ''),
'architecture': image['properties'].get('architecture', ''),
'container_format': image.get('container_format', ''),
'disk_format': image.get('disk_format', ''), })
if handled:
return handled
return shortcuts.render(request, 'nova/images/update.html', {'form': form})
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