Source code for openstack_dashboard.dashboards.project.instances.views

# 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.
"""
import logging

from django import http
from django import shortcuts
from django.core.urlresolvers import reverse, reverse_lazy
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 tabs
from horizon import tables
from horizon import workflows

from openstack_dashboard import api
from .tabs import InstanceDetailTabs
from .tables import InstancesTable
from .workflows import LaunchInstance, UpdateInstance


LOG = logging.getLogger(__name__)


[docs]class IndexView(tables.DataTableView): table_class = InstancesTable template_name = 'project/instances/index.html'
[docs] def get_data(self): # Gather our instances try: instances = api.nova.server_list(self.request) except: instances = [] exceptions.handle(self.request, _('Unable to retrieve instances.')) # Gather our flavors and correlate our instances to them if instances: try: flavors = api.nova.flavor_list(self.request) except: flavors = [] exceptions.handle(self.request, ignore=True) full_flavors = SortedDict([(str(flavor.id), flavor) for flavor in flavors]) # Loop through instances to get flavor info. for instance in instances: 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: msg = _('Unable to retrieve instance size information.') exceptions.handle(self.request, msg) return instances
[docs]class LaunchInstanceView(workflows.WorkflowView): workflow_class = LaunchInstance template_name = "project/instances/launch.html"
[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: data = _('Unable to get log for instance "%s".') % instance_id exceptions.handle(request, ignore=True) response = http.HttpResponse(mimetype='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: 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: redirect = reverse("horizon:project:instances:index") msg = _('Unable to get SPICE console for instance "%s".') % instance_id exceptions.handle(request, msg, redirect=redirect)
[docs]class UpdateView(workflows.WorkflowView): workflow_class = UpdateInstance template_name = 'project/instances/update.html' 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
[docs] def get_object(self, *args, **kwargs): if not hasattr(self, "_object"): instance_id = self.kwargs['instance_id'] try: self._object = api.nova.server_get(self.request, instance_id) except: redirect = reverse("horizon:project:instances:index") msg = _('Unable to retrieve instance details.') exceptions.handle(self.request, msg, redirect=redirect) return self._object
[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 DetailView(tabs.TabView): tab_group_class = InstanceDetailTabs template_name = 'project/instances/detail.html'
[docs] def get_context_data(self, **kwargs): context = super(DetailView, self).get_context_data(**kwargs) context["instance"] = self.get_data() return context
[docs] def get_data(self): if not hasattr(self, "_instance"): 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.nova.server_security_groups( self.request, instance_id) except: redirect = reverse('horizon:project:instances:index') exceptions.handle(self.request, _('Unable to retrieve details for ' 'instance "%s".') % instance_id, redirect=redirect) self._instance = instance return self._instance
[docs] def get_tabs(self, request, *args, **kwargs): instance = self.get_data() return self.tab_group_class(request, instance=instance, **kwargs)