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# -*- coding: utf8 -*-
#
# 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.
import json
from django.core.urlresolvers import reverse
from django import http
from django.utils.translation import ugettext_lazy as _
from django.views.generic import base
from glanceclient import exc as glance_exc
from horizon import tables as horizon_tables
from horizon import utils
from horizon import workflows
from openstack_dashboard.api import base as api_base
from tuskar_ui import api
from tuskar_ui.infrastructure.roles import tables
from tuskar_ui.infrastructure.roles import workflows as role_workflows
from tuskar_ui.infrastructure import views
from tuskar_ui.utils import metering as metering_utils
INDEX_URL = 'horizon:infrastructure:roles:index'
class IndexView(views.ItemCountMixin, horizon_tables.DataTableView):
table_class = tables.RolesTable
template_name = "infrastructure/roles/index.html"
@utils.memoized.memoized
def get_data(self):
roles = api.tuskar.Role.list(self.request)
plan = api.tuskar.Plan.get_the_plan(self.request)
for role in roles:
role_flavor = role.flavor(plan)
try:
role_image = role.image(plan)
except glance_exc.HTTPNotFound:
# Glance returns a 404 if the image doesn't exist
role_image = None
if role_flavor:
role.flavor = role_flavor.name
else:
role.flavor = _('Unknown')
if role_image:
role.image = role_image.name
else:
role.image = _('Unknown')
return roles
class DetailView(horizon_tables.DataTableView, views.RoleMixin,
views.StackMixin):
table_class = tables.NodeTable
template_name = 'infrastructure/roles/detail.html'
@utils.memoized.memoized
def _get_nodes(self, stack, role):
resources = stack.resources(role=role, with_joins=True)
nodes = [r.node for r in resources]
for node in nodes:
try:
resource = api.heat.Resource.get_by_node(self.request, node)
except LookupError:
node.role_name = '-'
else:
node.role_name = resource.role.name
node.role_id = resource.role.id
node.stack_id = resource.stack.id
return nodes
def get_data(self):
redirect = reverse(INDEX_URL)
stack = self.get_stack()
if stack:
role = self.get_role(redirect)
return self._get_nodes(stack, role)
return []
def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
redirect = reverse(INDEX_URL)
plan = api.tuskar.Plan.get_the_plan(self.request)
stack = self.get_stack()
role = self.get_role(redirect)
context['role'] = role
if stack:
context['nodes'] = self._get_nodes(stack, role)
else:
context['nodes'] = []
context['flavor'] = role.flavor(plan)
context['image'] = role.image(plan)
if stack:
if api_base.is_service_enabled(self.request, 'metering'):
# Meter configuration in the following format:
# (meter label, url part, barchart (True/False))
context['meter_conf'] = (
(_('System Load'),
metering_utils.url_part('hardware.cpu.load.1min', False),
None),
(_('CPU Utilization'),
metering_utils.url_part('hardware.system_stats.cpu.util',
True),
'100'),
(_('Swap Utilization'),
metering_utils.url_part('hardware.memory.swap.util',
True),
'100'),
)
return context
class UpdateView(workflows.WorkflowView, views.StackMixin, views.RoleMixin):
workflow_class = role_workflows.UpdateRole
def get_initial(self):
plan = self.get_plan()
role = self.get_role()
stack = self.get_stack()
if stack:
resources = stack.resources(role=role, with_joins=True)
role_nodes = len(resources)
else:
role_nodes = 0
role_flavor = role.flavor(plan)
role_flavor = '' if role_flavor is None else role_flavor.name
role_image = role.image(plan)
role_image = '' if role_image is None else role_image.id
free_nodes = len(api.node.Node.list(self.request, associated=False,
maintenance=False))
available_nodes = role_nodes + free_nodes
return {
'role_id': role.id,
'name': role.name,
'flavor': role_flavor,
'image': role_image,
'nodes': role_nodes,
'available_nodes': available_nodes,
}
class PerformanceView(base.TemplateView, views.RoleMixin, views.StackMixin):
def get(self, request, *args, **kwargs):
meter = request.GET.get('meter')
date_options = request.GET.get('date_options')
date_from = request.GET.get('date_from')
date_to = request.GET.get('date_to')
stats_attr = request.GET.get('stats_attr', 'avg')
barchart = bool(request.GET.get('barchart'))
role = self.get_role()
stack = self.get_stack()
instances = stack.resources(role=role, with_joins=True)
if instances:
instance_uuids = [i.physical_resource_id for i in instances]
json_output = metering_utils.get_nodes_stats(
request=request,
node_uuid=None,
instance_uuids=instance_uuids,
meter=meter,
date_options=date_options,
date_from=date_from,
date_to=date_to,
stats_attr=stats_attr,
barchart=barchart)
else:
json_output = None
return http.HttpResponse(json.dumps(json_output),
content_type='application/json')
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