d8affa596c
Implements blueprint workflows. Adds a reusable workflow component to Horizon, and puts it to use for the Launch Instance user interface. Contains tests with roughly 90% coverage and full documentation. Change-Id: I7325ef9db2ba2496d3fc1e2767cfeda50c71cbca
137 lines
5.0 KiB
Python
137 lines
5.0 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Copyright 2012 Nebula, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Views for managing Nova instances.
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"""
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import logging
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from django import http
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from django import shortcuts
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from django.core.urlresolvers import reverse
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from django.utils.translation import ugettext_lazy as _
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from horizon import api
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from horizon import exceptions
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from horizon import forms
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from horizon import tabs
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from horizon import workflows
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from .forms import UpdateInstance
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from .tabs import InstanceDetailTabs
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from .workflows import LaunchInstance
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LOG = logging.getLogger(__name__)
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class LaunchInstanceView(workflows.WorkflowView):
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workflow_class = LaunchInstance
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template_name = "nova/instances_and_volumes/instances/launch.html"
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def get_initial(self):
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initial = super(LaunchInstanceView, self).get_initial()
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initial['project_id'] = self.request.user.tenant_id
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initial['user_id'] = self.request.user.id
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return initial
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def console(request, instance_id):
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try:
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# TODO(jakedahn): clean this up once the api supports tailing.
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tail = request.GET.get('length', None)
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data = api.server_console_output(request,
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instance_id,
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tail_length=tail)
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except:
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data = _('Unable to get log for instance "%s".') % instance_id
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exceptions.handle(request, ignore=True)
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response = http.HttpResponse(mimetype='text/plain')
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response.write(data)
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response.flush()
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return response
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def vnc(request, instance_id):
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try:
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console = api.server_vnc_console(request, instance_id)
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instance = api.server_get(request, instance_id)
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return shortcuts.redirect(console.url +
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("&title=%s(%s)" % (instance.name, instance_id)))
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except:
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redirect = reverse("horizon:nova:instances_and_volumes:index")
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msg = _('Unable to get VNC console for instance "%s".') % instance_id
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exceptions.handle(request, msg, redirect=redirect)
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class UpdateView(forms.ModalFormView):
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form_class = UpdateInstance
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template_name = 'nova/instances_and_volumes/instances/update.html'
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context_object_name = 'instance'
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def get_object(self, *args, **kwargs):
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if not hasattr(self, "object"):
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instance_id = self.kwargs['instance_id']
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try:
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self.object = api.server_get(self.request, instance_id)
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except:
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redirect = reverse("horizon:nova:instances_and_volumes:index")
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msg = _('Unable to retrieve instance details.')
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exceptions.handle(self.request, msg, redirect=redirect)
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return self.object
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def get_initial(self):
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return {'instance': self.kwargs['instance_id'],
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'tenant_id': self.request.user.tenant_id,
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'name': getattr(self.object, 'name', '')}
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class DetailView(tabs.TabView):
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tab_group_class = InstanceDetailTabs
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template_name = 'nova/instances_and_volumes/instances/detail.html'
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def get_context_data(self, **kwargs):
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context = super(DetailView, self).get_context_data(**kwargs)
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context["instance"] = self.get_data()
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return context
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def get_data(self):
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if not hasattr(self, "_instance"):
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try:
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instance_id = self.kwargs['instance_id']
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instance = api.server_get(self.request, instance_id)
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instance.volumes = api.volume_instance_list(self.request,
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instance_id)
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instance.full_flavor = api.flavor_get(self.request,
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instance.flavor["id"])
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instance.security_groups = api.server_security_groups(
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self.request, instance_id)
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except:
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redirect = reverse('horizon:nova:instances_and_volumes:index')
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exceptions.handle(self.request,
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_('Unable to retrieve details for '
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'instance "%s".') % instance_id,
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redirect=redirect)
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self._instance = instance
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return self._instance
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def get_tabs(self, request, *args, **kwargs):
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instance = self.get_data()
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return self.tab_group_class(request, instance=instance, **kwargs)
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