+"""
+Copyright (c) 2015 SONATA-NFV and Paderborn University
+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.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
import logging
from flask_restful import Resource
from flask import request
logging.basicConfig(level=logging.INFO)
+CORS_HEADER = {'Access-Control-Allow-Origin': '*'}
+
dcs = {}
-class ComputeStart(Resource):
+
+class Compute(Resource):
"""
Start a new compute instance: A docker container (note: zerorpc does not support keyword arguments)
:param dc_label: name of the DC
"""
global dcs
- def put(self, dc_label, compute_name):
- logging.debug("API CALL: compute start")
- try:
+ def put(self, dc_label, compute_name, resource=None, value=None):
+ # check if resource update
+ if resource and value:
+ c = self._update_resource(dc_label, compute_name, resource, value)
+ return c.getStatus(), 200
+
+ # deploy new container
+ # check if json data is a dict
+ data = request.json
+ if data is None:
+ data = {}
+ elif type(data) is not dict:
+ data = json.loads(request.json)
+
+ network = data.get("network")
+ nw_list = self._parse_network(network)
+ image = data.get("image")
+ command = data.get("docker_command")
- image = json.loads(request.json).get("image")
- network = json.loads(request.json).get("network")
- command = json.loads(request.json).get("docker_command")
+ try:
+ logging.debug("API CALL: compute start")
c = dcs.get(dc_label).startCompute(
- compute_name, image= image, command= command, network= network)
+ compute_name, image=image, command=command, network=nw_list)
# return docker inspect dict
- return c.getStatus(), 200
+ return c.getStatus(), 200, CORS_HEADER
except Exception as ex:
logging.exception("API error.")
- return ex.message, 500
+ return ex.message, 500, CORS_HEADER
+
+ def _update_resource(self, dc_label, compute_name, resource, value):
+ #check if container exists
+ d = dcs.get(dc_label).net.getNodeByName(compute_name)
+ if resource == 'cpu':
+ cpu_period = int(dcs.get(dc_label).net.cpu_period)
+ cpu_quota = int(cpu_period * float(value))
+ #put default values back
+ if float(value) <= 0:
+ cpu_period = 100000
+ cpu_quota = -1
+ d.updateCpuLimit(cpu_period=cpu_period, cpu_quota=cpu_quota)
+ return d
-class ComputeStop(Resource):
-
- global dcs
def get(self, dc_label, compute_name):
+
+ logging.debug("API CALL: compute status")
+
+ try:
+ return dcs.get(dc_label).containers.get(compute_name).getStatus(), 200, CORS_HEADER
+ except Exception as ex:
+ logging.exception("API error.")
+ return ex.message, 500, CORS_HEADER
+
+ def delete(self, dc_label, compute_name):
logging.debug("API CALL: compute stop")
try:
- return dcs.get(dc_label).stopCompute(compute_name), 200
+ return dcs.get(dc_label).stopCompute(compute_name), 200, CORS_HEADER
except Exception as ex:
logging.exception("API error.")
- return ex.message,500
+ return ex.message, 500, CORS_HEADER
+ def _parse_network(self, network_str):
+ '''
+ parse the options for all network interfaces of the vnf
+ :param network_str: (id=x,ip=x.x.x.x/x), ...
+ :return: list of dicts [{"id":x,"ip":"x.x.x.x/x"}, ...]
+ '''
+ nw_list = list()
+
+ # TODO make this more robust with regex check
+ if network_str is None:
+ return nw_list
+
+ networks = network_str[1:-1].split('),(')
+ for nw in networks:
+ nw_dict = dict(tuple(e.split('=')) for e in nw.split(','))
+ nw_list.append(nw_dict)
+
+ return nw_list
-class ComputeList(Resource):
+class ComputeList(Resource):
global dcs
- def get(self, dc_label):
+ def get(self, dc_label=None):
logging.debug("API CALL: compute list")
try:
- if dc_label == 'None':
+ if dc_label is None or dc_label == 'None':
# return list with all compute nodes in all DCs
all_containers = []
for dc in dcs.itervalues():
all_containers += dc.listCompute()
- return [(c.name, c.getStatus()) for c in all_containers], 200
+ return [(c.name, c.getStatus()) for c in all_containers], 200, CORS_HEADER
else:
# return list of compute nodes for specified DC
return [(c.name, c.getStatus())
- for c in dcs.get(dc_label).listCompute()], 200
+ for c in dcs.get(dc_label).listCompute()], 200, CORS_HEADER
except Exception as ex:
logging.exception("API error.")
- return ex.message, 500
-
-
-class ComputeStatus(Resource):
-
- global dcs
-
- def get(self, dc_label, compute_name):
+ return ex.message, 500, CORS_HEADER
- logging.debug("API CALL: compute list")
-
- try:
- return dcs.get(dc_label).containers.get(compute_name).getStatus(), 200
- except Exception as ex:
- logging.exception("API error.")
- return ex.message, 500
class DatacenterList(Resource):
-
global dcs
def get(self):
logging.debug("API CALL: datacenter list")
try:
- return [d.getStatus() for d in dcs.itervalues()], 200
+ return [d.getStatus() for d in dcs.itervalues()], 200, CORS_HEADER
except Exception as ex:
logging.exception("API error.")
- return ex.message, 500
+ return ex.message, 500, CORS_HEADER
-class DatacenterStatus(Resource):
+class DatacenterStatus(Resource):
global dcs
def get(self, dc_label):
logging.debug("API CALL: datacenter status")
try:
- return dcs.get(dc_label).getStatus(), 200
+ return dcs.get(dc_label).getStatus(), 200, CORS_HEADER
except Exception as ex:
logging.exception("API error.")
- return ex.message, 500
+ return ex.message, 500, CORS_HEADER