7a58d15aec
Adds a common detail page and a breadcrumb templatetag. The breadcrumb templatetag defaults to displaying the panel name and the existing page title, which is usually name_or_id. The templatetag can also access the context, and accepts a "custom_breadcrumb", for complex nested pages or customised layouts. This type of navigation is also useful for small devices (mobile/ tablet), providing logical direction that isn't dependant on the sidebar being displayed. Currently implemented in Images, Volumes (simple breadcrumb), Ports and Subnets (more complex nesting). This approach has been chosen as manipulation of the URLs was seen as undesirable, making request.path too unreliable. Furthermore, the templatetag seperation means this could easily be used in other views. NOTE: The network details page itself will be updated following the resolution of https://bugs.launchpad.net/horizon/+bug/1416838 Change-Id: I7443b2ffa61560e5d1fd4d6d91b11201f1db6fac Partial-Bug: 1413823
474 lines
19 KiB
Python
474 lines
19 KiB
Python
# 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 instances.
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"""
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from collections import OrderedDict
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import logging
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from django.core.urlresolvers import reverse
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from django.core.urlresolvers import reverse_lazy
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from django import http
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from django import shortcuts
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from django.utils.translation import ugettext_lazy as _
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from django.views import generic
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from horizon import exceptions
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from horizon import forms
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from horizon import messages
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from horizon import tables
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from horizon import tabs
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from horizon.utils import memoized
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from horizon import workflows
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from openstack_dashboard import api
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from openstack_dashboard.utils import filters
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from openstack_dashboard.dashboards.project.instances \
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import console as project_console
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from openstack_dashboard.dashboards.project.instances \
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import forms as project_forms
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from openstack_dashboard.dashboards.project.instances \
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import tables as project_tables
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from openstack_dashboard.dashboards.project.instances \
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import tabs as project_tabs
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from openstack_dashboard.dashboards.project.instances \
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import workflows as project_workflows
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LOG = logging.getLogger(__name__)
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class IndexView(tables.DataTableView):
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table_class = project_tables.InstancesTable
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template_name = 'project/instances/index.html'
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page_title = _("Instances")
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def has_more_data(self, table):
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return self._more
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def get_data(self):
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marker = self.request.GET.get(
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project_tables.InstancesTable._meta.pagination_param, None)
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search_opts = self.get_filters({'marker': marker, 'paginate': True})
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# Gather our instances
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try:
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instances, self._more = api.nova.server_list(
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self.request,
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search_opts=search_opts)
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except Exception:
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self._more = False
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instances = []
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exceptions.handle(self.request,
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_('Unable to retrieve instances.'))
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if instances:
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try:
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api.network.servers_update_addresses(self.request, instances)
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except Exception:
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exceptions.handle(
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self.request,
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message=_('Unable to retrieve IP addresses from Neutron.'),
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ignore=True)
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# Gather our flavors and images and correlate our instances to them
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try:
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flavors = api.nova.flavor_list(self.request)
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except Exception:
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flavors = []
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exceptions.handle(self.request, ignore=True)
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try:
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# TODO(gabriel): Handle pagination.
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images, more, prev = api.glance.image_list_detailed(
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self.request)
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except Exception:
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images = []
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exceptions.handle(self.request, ignore=True)
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full_flavors = OrderedDict([(str(flavor.id), flavor)
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for flavor in flavors])
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image_map = OrderedDict([(str(image.id), image)
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for image in images])
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# Loop through instances to get flavor info.
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for instance in instances:
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if hasattr(instance, 'image'):
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# Instance from image returns dict
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if isinstance(instance.image, dict):
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if instance.image.get('id') in image_map:
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instance.image = image_map[instance.image['id']]
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try:
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flavor_id = instance.flavor["id"]
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if flavor_id in full_flavors:
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instance.full_flavor = full_flavors[flavor_id]
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else:
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# If the flavor_id is not in full_flavors list,
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# get it via nova api.
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instance.full_flavor = api.nova.flavor_get(
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self.request, flavor_id)
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except Exception:
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msg = ('Unable to retrieve flavor "%s" for instance "%s".'
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% (flavor_id, instance.id))
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LOG.info(msg)
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return instances
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def get_filters(self, filters):
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filter_action = self.table._meta._filter_action
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if filter_action:
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filter_field = self.table.get_filter_field()
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if filter_action.is_api_filter(filter_field):
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filter_string = self.table.get_filter_string()
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if filter_field and filter_string:
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filters[filter_field] = filter_string
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return filters
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class LaunchInstanceView(workflows.WorkflowView):
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workflow_class = project_workflows.LaunchInstance
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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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data = _('Unable to get log for instance "%s".') % instance_id
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tail = request.GET.get('length')
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if tail and not tail.isdigit():
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msg = _('Log length must be a nonnegative integer.')
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messages.warning(request, msg)
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else:
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try:
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data = api.nova.server_console_output(request,
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instance_id,
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tail_length=tail)
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except Exception:
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exceptions.handle(request, ignore=True)
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return http.HttpResponse(data.encode('utf-8'), content_type='text/plain')
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def vnc(request, instance_id):
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try:
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instance = api.nova.server_get(request, instance_id)
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console_url = project_console.get_console(request, 'VNC', instance)[1]
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return shortcuts.redirect(console_url)
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except Exception:
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redirect = reverse("horizon:project:instances: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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def spice(request, instance_id):
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try:
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instance = api.nova.server_get(request, instance_id)
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console_url = project_console.get_console(request, 'SPICE',
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instance)[1]
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return shortcuts.redirect(console_url)
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except Exception:
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redirect = reverse("horizon:project:instances:index")
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msg = _('Unable to get SPICE console for instance "%s".') % instance_id
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exceptions.handle(request, msg, redirect=redirect)
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def rdp(request, instance_id):
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try:
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instance = api.nova.server_get(request, instance_id)
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console_url = project_console.get_console(request, 'RDP', instance)[1]
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return shortcuts.redirect(console_url)
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except Exception:
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redirect = reverse("horizon:project:instances:index")
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msg = _('Unable to get RDP console for instance "%s".') % instance_id
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exceptions.handle(request, msg, redirect=redirect)
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class SerialConsoleView(generic.TemplateView):
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template_name = 'project/instances/serial_console.html'
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def get_context_data(self, **kwargs):
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context = super(SerialConsoleView, self).get_context_data(**kwargs)
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context['instance_id'] = self.kwargs['instance_id']
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instance = None
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try:
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instance = api.nova.server_get(self.request,
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self.kwargs['instance_id'])
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except Exception:
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context["error_message"] = _(
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"Cannot find instance %s.") % self.kwargs['instance_id']
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# name is unknown, so leave it blank for the window title
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# in full-screen mode, so only the instance id is shown.
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context['instance_name'] = ''
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return context
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context['instance_name'] = instance.name
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try:
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console_url = project_console.get_console(self.request,
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"SERIAL", instance)[1]
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context["console_url"] = console_url
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except exceptions.NotAvailable:
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context["error_message"] = _(
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"Cannot get console for instance %s.") % self.kwargs[
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'instance_id']
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return context
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class UpdateView(workflows.WorkflowView):
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workflow_class = project_workflows.UpdateInstance
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success_url = reverse_lazy("horizon:project:instances:index")
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def get_context_data(self, **kwargs):
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context = super(UpdateView, self).get_context_data(**kwargs)
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context["instance_id"] = self.kwargs['instance_id']
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return context
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@memoized.memoized_method
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def get_object(self, *args, **kwargs):
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instance_id = self.kwargs['instance_id']
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try:
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return api.nova.server_get(self.request, instance_id)
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except Exception:
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redirect = reverse("horizon:project:instances: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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def get_initial(self):
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initial = super(UpdateView, self).get_initial()
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initial.update({'instance_id': self.kwargs['instance_id'],
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'name': getattr(self.get_object(), 'name', '')})
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return initial
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class RebuildView(forms.ModalFormView):
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form_class = project_forms.RebuildInstanceForm
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template_name = 'project/instances/rebuild.html'
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success_url = reverse_lazy('horizon:project:instances:index')
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page_title = _("Rebuild Instance")
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def get_context_data(self, **kwargs):
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context = super(RebuildView, self).get_context_data(**kwargs)
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context['instance_id'] = self.kwargs['instance_id']
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context['can_set_server_password'] = api.nova.can_set_server_password()
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return context
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def get_initial(self):
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return {'instance_id': self.kwargs['instance_id']}
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class DecryptPasswordView(forms.ModalFormView):
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form_class = project_forms.DecryptPasswordInstanceForm
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template_name = 'project/instances/decryptpassword.html'
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success_url = reverse_lazy('horizon:project:instances:index')
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page_title = _("Retrieve Instance Password")
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def get_context_data(self, **kwargs):
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context = super(DecryptPasswordView, self).get_context_data(**kwargs)
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context['instance_id'] = self.kwargs['instance_id']
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context['keypair_name'] = self.kwargs['keypair_name']
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return context
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def get_initial(self):
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return {'instance_id': self.kwargs['instance_id'],
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'keypair_name': self.kwargs['keypair_name']}
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class DetailView(tabs.TabView):
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tab_group_class = project_tabs.InstanceDetailTabs
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template_name = 'horizon/common/_detail.html'
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redirect_url = 'horizon:project:instances:index'
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page_title = "{{ instance.name|default:instance.id }}"
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image_url = 'horizon:project:images:images:detail'
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volume_url = 'horizon:project:volumes:volumes:detail'
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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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instance = self.get_data()
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if instance.image:
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instance.image_url = reverse(self.image_url,
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args=[instance.image['id']])
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instance.volume_url = self.volume_url
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context["instance"] = instance
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context["url"] = reverse(self.redirect_url)
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context["actions"] = self._get_actions(instance)
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return context
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def _get_actions(self, instance):
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table = project_tables.InstancesTable(self.request)
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return table.render_row_actions(instance)
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@memoized.memoized_method
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def get_data(self):
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instance_id = self.kwargs['instance_id']
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try:
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instance = api.nova.server_get(self.request, instance_id)
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except Exception:
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redirect = reverse(self.redirect_url)
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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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# Not all exception types handled above will result in a redirect.
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# Need to raise here just in case.
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raise exceptions.Http302(redirect)
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choices = project_tables.STATUS_DISPLAY_CHOICES
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instance.status_label = (
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filters.get_display_label(choices, instance.status))
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try:
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instance.volumes = api.nova.instance_volumes_list(self.request,
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instance_id)
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# Sort by device name
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instance.volumes.sort(key=lambda vol: vol.device)
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except Exception:
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msg = _('Unable to retrieve volume list for instance '
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'"%(name)s" (%(id)s).') % {'name': instance.name,
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'id': instance_id}
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exceptions.handle(self.request, msg, ignore=True)
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try:
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instance.full_flavor = api.nova.flavor_get(
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self.request, instance.flavor["id"])
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except Exception:
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msg = _('Unable to retrieve flavor information for instance '
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'"%(name)s" (%(id)s).') % {'name': instance.name,
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'id': instance_id}
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exceptions.handle(self.request, msg, ignore=True)
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try:
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instance.security_groups = api.network.server_security_groups(
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self.request, instance_id)
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except Exception:
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msg = _('Unable to retrieve security groups for instance '
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'"%(name)s" (%(id)s).') % {'name': instance.name,
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'id': instance_id}
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exceptions.handle(self.request, msg, ignore=True)
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try:
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api.network.servers_update_addresses(self.request, [instance])
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except Exception:
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msg = _('Unable to retrieve IP addresses from Neutron for '
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'instance "%(name)s" (%(id)s).') % {'name': instance.name,
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'id': instance_id}
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exceptions.handle(self.request, msg, ignore=True)
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return 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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class ResizeView(workflows.WorkflowView):
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workflow_class = project_workflows.ResizeInstance
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success_url = reverse_lazy("horizon:project:instances:index")
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def get_context_data(self, **kwargs):
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context = super(ResizeView, self).get_context_data(**kwargs)
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context["instance_id"] = self.kwargs['instance_id']
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return context
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@memoized.memoized_method
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def get_object(self, *args, **kwargs):
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instance_id = self.kwargs['instance_id']
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try:
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instance = api.nova.server_get(self.request, instance_id)
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except Exception:
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redirect = reverse("horizon:project:instances: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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flavor_id = instance.flavor['id']
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flavors = self.get_flavors()
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if flavor_id in flavors:
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instance.flavor_name = flavors[flavor_id].name
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else:
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try:
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flavor = api.nova.flavor_get(self.request, flavor_id)
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instance.flavor_name = flavor.name
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except Exception:
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msg = _('Unable to retrieve flavor information for instance '
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'"%s".') % instance_id
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exceptions.handle(self.request, msg, ignore=True)
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instance.flavor_name = _("Not available")
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return instance
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@memoized.memoized_method
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def get_flavors(self, *args, **kwargs):
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try:
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flavors = api.nova.flavor_list(self.request)
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return OrderedDict((str(flavor.id), flavor) for flavor in flavors)
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except Exception:
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redirect = reverse("horizon:project:instances:index")
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exceptions.handle(self.request,
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_('Unable to retrieve flavors.'),
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redirect=redirect)
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def get_initial(self):
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initial = super(ResizeView, self).get_initial()
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_object = self.get_object()
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if _object:
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initial.update(
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{'instance_id': self.kwargs['instance_id'],
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'name': getattr(_object, 'name', None),
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'old_flavor_id': _object.flavor['id'],
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'old_flavor_name': getattr(_object, 'flavor_name', ''),
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'flavors': self.get_flavors()})
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return initial
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class AttachInterfaceView(forms.ModalFormView):
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form_class = project_forms.AttachInterface
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template_name = 'project/instances/attach_interface.html'
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modal_header = _("Attach Interface")
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form_id = "attach_interface_form"
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submit_label = _("Attach Interface")
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submit_url = "horizon:project:instances:attach_interface"
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success_url = reverse_lazy('horizon:project:instances:index')
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def get_context_data(self, **kwargs):
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context = super(AttachInterfaceView, self).get_context_data(**kwargs)
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context['instance_id'] = self.kwargs['instance_id']
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args = (self.kwargs['instance_id'],)
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context['submit_url'] = reverse(self.submit_url, args=args)
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return context
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def get_initial(self):
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return {'instance_id': self.kwargs['instance_id']}
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class DetachInterfaceView(forms.ModalFormView):
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form_class = project_forms.DetachInterface
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template_name = 'project/instances/detach_interface.html'
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modal_header = _("Detach Interface")
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form_id = "detach_interface_form"
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submit_label = _("Detach Interface")
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submit_url = "horizon:project:instances:detach_interface"
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success_url = reverse_lazy('horizon:project:instances:index')
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def get_context_data(self, **kwargs):
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context = super(DetachInterfaceView, self).get_context_data(**kwargs)
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context['instance_id'] = self.kwargs['instance_id']
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args = (self.kwargs['instance_id'],)
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context['submit_url'] = reverse(self.submit_url, args=args)
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return context
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def get_initial(self):
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return {'instance_id': self.kwargs['instance_id']}
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