zun/zun/api/controllers/v1/zun_services.py

88 lines
3.0 KiB
Python

# 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 pecan
from zun.api.controllers import base
from zun.api.controllers.v1 import collection
from zun.api import servicegroup as svcgrp_api
from zun.common import exception
from zun.common import policy
from zun import objects
class ZunServiceCollection(collection.Collection):
fields = {
'services',
'next'
}
def __init__(self, **kwargs):
super(ZunServiceCollection, self).__init__()
self._type = 'services'
@staticmethod
def convert_db_rec_list_to_collection(servicegroup_api,
rpc_hsvcs, **kwargs):
collection = ZunServiceCollection()
collection.services = []
for p in rpc_hsvcs:
hsvc = p.as_dict()
alive = servicegroup_api.service_is_up(p)
state = 'up' if alive else 'down'
hsvc['state'] = state
collection.services.append(hsvc)
next = collection.get_next(limit=None, url=None, **kwargs)
if next is not None:
collection.next = next
return collection
class ZunServiceController(base.Controller):
"""REST controller for zun-services."""
def __init__(self, **kwargs):
super(ZunServiceController, self).__init__()
self.servicegroup_api = svcgrp_api.ServiceGroup()
@pecan.expose('json')
@exception.wrap_pecan_controller_exception
def get_all(self, **kwargs):
"""Retrieve a list of zun-services.
"""
context = pecan.request.context
policy.enforce(context, "zun-service:get_all",
action="zun-service:get_all")
hsvcs = objects.ZunService.list(context,
limit=None,
marker=None,
sort_key='id',
sort_dir='asc')
return ZunServiceCollection.convert_db_rec_list_to_collection(
self.servicegroup_api, hsvcs)
@pecan.expose('json')
@exception.wrap_pecan_controller_exception
def delete(self, host, binary):
"""Delete the specified service.
:param host: The host on which the binary is running.
:param binary: The name of the binary.
"""
context = pecan.request.context
policy.enforce(context, "zun-service:delete",
action="zun-service:delete")
objects.ZunService.get_by_host_and_binary(
context, host, binary).destroy(context)