140 lines
4.4 KiB
Python
140 lines
4.4 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2012 IBM Corp.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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 webob.exc
|
|
|
|
from cinder.api import extensions
|
|
from cinder.api.openstack import wsgi
|
|
from cinder.api import xmlutil
|
|
from cinder import db
|
|
from cinder import exception
|
|
from cinder.openstack.common import log as logging
|
|
from cinder.openstack.common import timeutils
|
|
from cinder import utils
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
authorize = extensions.extension_authorizer('volume', 'services')
|
|
|
|
|
|
class ServicesIndexTemplate(xmlutil.TemplateBuilder):
|
|
def construct(self):
|
|
root = xmlutil.TemplateElement('services')
|
|
elem = xmlutil.SubTemplateElement(root, 'service', selector='services')
|
|
elem.set('binary')
|
|
elem.set('host')
|
|
elem.set('zone')
|
|
elem.set('status')
|
|
elem.set('state')
|
|
elem.set('update_at')
|
|
|
|
return xmlutil.MasterTemplate(root, 1)
|
|
|
|
|
|
class ServicesUpdateTemplate(xmlutil.TemplateBuilder):
|
|
def construct(self):
|
|
root = xmlutil.TemplateElement('host')
|
|
root.set('host')
|
|
root.set('service')
|
|
root.set('disabled')
|
|
|
|
return xmlutil.MasterTemplate(root, 1)
|
|
|
|
|
|
class ServiceController(object):
|
|
@wsgi.serializers(xml=ServicesIndexTemplate)
|
|
def index(self, req):
|
|
"""
|
|
Return a list of all running services. Filter by host & service name.
|
|
"""
|
|
context = req.environ['cinder.context']
|
|
authorize(context)
|
|
now = timeutils.utcnow()
|
|
services = db.service_get_all(context)
|
|
|
|
host = ''
|
|
if 'host' in req.GET:
|
|
host = req.GET['host']
|
|
service = ''
|
|
if 'service' in req.GET:
|
|
service = req.GET['service']
|
|
if host:
|
|
services = [s for s in services if s['host'] == host]
|
|
if service:
|
|
services = [s for s in services if s['binary'] == service]
|
|
|
|
svcs = []
|
|
for svc in services:
|
|
delta = now - (svc['updated_at'] or svc['created_at'])
|
|
alive = abs(utils.total_seconds(delta))
|
|
art = (alive and "up") or "down"
|
|
active = 'enabled'
|
|
if svc['disabled']:
|
|
active = 'disabled'
|
|
svcs.append({"binary": svc['binary'], 'host': svc['host'],
|
|
'zone': svc['availability_zone'],
|
|
'status': active, 'state': art,
|
|
'updated_at': svc['updated_at']})
|
|
return {'services': svcs}
|
|
|
|
@wsgi.serializers(xml=ServicesUpdateTemplate)
|
|
def update(self, req, id, body):
|
|
"""Enable/Disable scheduling for a service"""
|
|
context = req.environ['cinder.context']
|
|
authorize(context)
|
|
|
|
if id == "enable":
|
|
disabled = False
|
|
elif id == "disable":
|
|
disabled = True
|
|
else:
|
|
raise webob.exc.HTTPNotFound("Unknown action")
|
|
|
|
try:
|
|
host = body['host']
|
|
service = body['service']
|
|
except (TypeError, KeyError):
|
|
raise webob.exc.HTTPBadRequest()
|
|
|
|
try:
|
|
svc = db.service_get_by_args(context, host, service)
|
|
if not svc:
|
|
raise webob.exc.HTTPNotFound('Unknown service')
|
|
|
|
db.service_update(context, svc['id'], {'disabled': disabled})
|
|
except exception.ServiceNotFound:
|
|
raise webob.exc.HTTPNotFound("service not found")
|
|
|
|
return {'host': host, 'service': service, 'disabled': disabled}
|
|
|
|
|
|
class Services(extensions.ExtensionDescriptor):
|
|
"""Services support"""
|
|
|
|
name = "Services"
|
|
alias = "os-services"
|
|
namespace = "http://docs.openstack.org/volume/ext/services/api/v2"
|
|
updated = "2012-10-28T00:00:00-00:00"
|
|
|
|
def get_resources(self):
|
|
resources = []
|
|
resource = extensions.ResourceExtension('os-services',
|
|
ServiceController())
|
|
resources.append(resource)
|
|
return resources
|