# 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 instances.
"""
from django.core.urlresolvers import reverse
from django.core.urlresolvers import reverse_lazy
from django import http
from django import shortcuts
from django.utils.datastructures import SortedDict
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import tables
from horizon import tabs
from horizon.utils import memoized
from horizon import workflows
from openstack_dashboard import api
from openstack_dashboard.dashboards.project.instances \
import forms as project_forms
from openstack_dashboard.dashboards.project.instances \
import tables as project_tables
from openstack_dashboard.dashboards.project.instances \
import tabs as project_tabs
from openstack_dashboard.dashboards.project.instances \
import workflows as project_workflows
[docs]class IndexView(tables.DataTableView):
table_class = project_tables.InstancesTable
template_name = 'project/instances/index.html'
[docs] def has_more_data(self, table):
return self._more
[docs] def get_data(self):
marker = self.request.GET.get(
project_tables.InstancesTable._meta.pagination_param, None)
# Gather our instances
try:
instances, self._more = api.nova.server_list(
self.request,
search_opts={'marker': marker,
'paginate': True})
except Exception:
self._more = False
instances = []
exceptions.handle(self.request,
_('Unable to retrieve instances.'))
if instances:
try:
api.network.servers_update_addresses(self.request, instances)
except Exception:
exceptions.handle(
self.request,
message=_('Unable to retrieve IP addresses from Neutron.'),
ignore=True)
# Gather our flavors and images and correlate our instances to them
try:
flavors = api.nova.flavor_list(self.request)
except Exception:
flavors = []
exceptions.handle(self.request, ignore=True)
try:
# TODO(gabriel): Handle pagination.
images, more = api.glance.image_list_detailed(self.request)
except Exception:
images = []
exceptions.handle(self.request, ignore=True)
full_flavors = SortedDict([(str(flavor.id), flavor)
for flavor in flavors])
image_map = SortedDict([(str(image.id), image)
for image in images])
# Loop through instances to get flavor info.
for instance in instances:
if hasattr(instance, 'image'):
# Instance from image returns dict
if isinstance(instance.image, dict):
if instance.image.get('id') in image_map:
instance.image = image_map[instance.image['id']]
else:
# Instance from volume returns a string
instance.image = {'name':
instance.image if instance.image else _("-")}
try:
flavor_id = instance.flavor["id"]
if flavor_id in full_flavors:
instance.full_flavor = full_flavors[flavor_id]
else:
# If the flavor_id is not in full_flavors list,
# get it via nova api.
instance.full_flavor = api.nova.flavor_get(
self.request, flavor_id)
except Exception:
msg = _('Unable to retrieve instance size information.')
exceptions.handle(self.request, msg)
return instances
[docs]class LaunchInstanceView(workflows.WorkflowView):
workflow_class = project_workflows.LaunchInstance
[docs] def get_initial(self):
initial = super(LaunchInstanceView, self).get_initial()
initial['project_id'] = self.request.user.tenant_id
initial['user_id'] = self.request.user.id
return initial
[docs]def console(request, instance_id):
try:
# TODO(jakedahn): clean this up once the api supports tailing.
tail = request.GET.get('length', None)
data = api.nova.server_console_output(request,
instance_id,
tail_length=tail)
except Exception:
data = _('Unable to get log for instance "%s".') % instance_id
exceptions.handle(request, ignore=True)
response = http.HttpResponse(content_type='text/plain')
response.write(data)
response.flush()
return response
[docs]def vnc(request, instance_id):
try:
console = api.nova.server_vnc_console(request, instance_id)
instance = api.nova.server_get(request, instance_id)
return shortcuts.redirect(console.url +
("&title=%s(%s)" % (instance.name, instance_id)))
except Exception:
redirect = reverse("horizon:project:instances:index")
msg = _('Unable to get VNC console for instance "%s".') % instance_id
exceptions.handle(request, msg, redirect=redirect)
[docs]def spice(request, instance_id):
try:
console = api.nova.server_spice_console(request, instance_id)
instance = api.nova.server_get(request, instance_id)
return shortcuts.redirect(console.url +
("&title=%s(%s)" % (instance.name, instance_id)))
except Exception:
redirect = reverse("horizon:project:instances:index")
msg = _('Unable to get SPICE console for instance "%s".') % instance_id
exceptions.handle(request, msg, redirect=redirect)
[docs]def rdp(request, instance_id):
try:
console = api.nova.server_rdp_console(request, instance_id)
instance = api.nova.server_get(request, instance_id)
return shortcuts.redirect(console.url +
("&title=%s(%s)" % (instance.name, instance_id)))
except Exception:
redirect = reverse("horizon:project:instances:index")
msg = _('Unable to get RDP console for instance "%s".') % instance_id
exceptions.handle(request, msg, redirect=redirect)
[docs]class UpdateView(workflows.WorkflowView):
workflow_class = project_workflows.UpdateInstance
success_url = reverse_lazy("horizon:project:instances:index")
[docs] def get_context_data(self, **kwargs):
context = super(UpdateView, self).get_context_data(**kwargs)
context["instance_id"] = self.kwargs['instance_id']
return context
@memoized.memoized_method
[docs] 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:project:instances:index")
msg = _('Unable to retrieve instance details.')
exceptions.handle(self.request, msg, redirect=redirect)
[docs] def get_initial(self):
initial = super(UpdateView, self).get_initial()
initial.update({'instance_id': self.kwargs['instance_id'],
'name': getattr(self.get_object(), 'name', '')})
return initial
[docs]class RebuildView(forms.ModalFormView):
form_class = project_forms.RebuildInstanceForm
template_name = 'project/instances/rebuild.html'
success_url = reverse_lazy('horizon:project:instances:index')
[docs] def get_context_data(self, **kwargs):
context = super(RebuildView, self).get_context_data(**kwargs)
context['instance_id'] = self.kwargs['instance_id']
context['can_set_server_password'] = api.nova.can_set_server_password()
return context
[docs] def get_initial(self):
return {'instance_id': self.kwargs['instance_id']}
[docs]class DecryptPasswordView(forms.ModalFormView):
form_class = project_forms.DecryptPasswordInstanceForm
template_name = 'project/instances/decryptpassword.html'
success_url = reverse_lazy('horizon:project:instances:index')
[docs] def get_context_data(self, **kwargs):
context = super(DecryptPasswordView, self).get_context_data(**kwargs)
context['instance_id'] = self.kwargs['instance_id']
context['keypair_name'] = self.kwargs['keypair_name']
return context
[docs] def get_initial(self):
return {'instance_id': self.kwargs['instance_id'],
'keypair_name': self.kwargs['keypair_name']}
[docs]class DetailView(tabs.TabView):
tab_group_class = project_tabs.InstanceDetailTabs
template_name = 'project/instances/detail.html'
redirect_url = 'horizon:project:instances:index'
[docs] def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
context["instance"] = self.get_data()
return context
@memoized.memoized_method
[docs] def get_data(self):
try:
instance_id = self.kwargs['instance_id']
instance = api.nova.server_get(self.request, instance_id)
instance.volumes = api.nova.instance_volumes_list(self.request,
instance_id)
# Sort by device name
instance.volumes.sort(key=lambda vol: vol.device)
instance.full_flavor = api.nova.flavor_get(
self.request, instance.flavor["id"])
instance.security_groups = api.network.server_security_groups(
self.request, instance_id)
except Exception:
redirect = reverse(self.redirect_url)
exceptions.handle(self.request,
_('Unable to retrieve details for '
'instance "%s".') % instance_id,
redirect=redirect)
# Not all exception types handled above will result in a redirect.
# Need to raise here just in case.
raise exceptions.Http302(redirect)
try:
api.network.servers_update_addresses(self.request, [instance])
except Exception:
exceptions.handle(
self.request,
_('Unable to retrieve IP addresses from Neutron for instance '
'"%s".') % instance_id, ignore=True)
return instance
[docs] def get_tabs(self, request, *args, **kwargs):
instance = self.get_data()
return self.tab_group_class(request, instance=instance, **kwargs)
[docs]class ResizeView(workflows.WorkflowView):
workflow_class = project_workflows.ResizeInstance
success_url = reverse_lazy("horizon:project:instances:index")
[docs] def get_context_data(self, **kwargs):
context = super(ResizeView, self).get_context_data(**kwargs)
context["instance_id"] = self.kwargs['instance_id']
return context
@memoized.memoized_method
[docs] def get_object(self, *args, **kwargs):
instance_id = self.kwargs['instance_id']
try:
instance = api.nova.server_get(self.request, instance_id)
flavor_id = instance.flavor['id']
flavors = self.get_flavors()
if flavor_id in flavors:
instance.flavor_name = flavors[flavor_id].name
else:
flavor = api.nova.flavor_get(self.request, flavor_id)
instance.flavor_name = flavor.name
except Exception:
redirect = reverse("horizon:project:instances:index")
msg = _('Unable to retrieve instance details.')
exceptions.handle(self.request, msg, redirect=redirect)
return instance
@memoized.memoized_method
[docs] def get_flavors(self, *args, **kwargs):
try:
flavors = api.nova.flavor_list(self.request)
return SortedDict((str(flavor.id), flavor) for flavor in flavors)
except Exception:
redirect = reverse("horizon:project:instances:index")
exceptions.handle(self.request,
_('Unable to retrieve flavors.'), redirect=redirect)
[docs] def get_initial(self):
initial = super(ResizeView, self).get_initial()
_object = self.get_object()
if _object:
initial.update({'instance_id': self.kwargs['instance_id'],
'name': getattr(_object, 'name', None),
'old_flavor_id': _object.flavor['id'],
'old_flavor_name': getattr(_object, 'flavor_name', ''),
'flavors': self.get_flavors()})
return initial