2 Copyright (c) 2015 SONATA-NFV and Paderborn University
5 Licensed under the Apache License, Version 2.0 (the "License");
6 you may not use this file except in compliance with the License.
7 You may obtain a copy of the License at
9 http://www.apache.org/licenses/LICENSE-2.0
11 Unless required by applicable law or agreed to in writing, software
12 distributed under the License is distributed on an "AS IS" BASIS,
13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 See the License for the specific language governing permissions and
15 limitations under the License.
17 Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
18 nor the names of its contributors may be used to endorse or promote
19 products derived from this software without specific prior written
22 This work has been performed in the framework of the SONATA project,
23 funded by the European Commission under Grant number 671517 through
24 the Horizon 2020 and 5G-PPP programmes. The authors would like to
25 acknowledge the contributions of their colleagues of the SONATA
26 partner consortium (www.sonata-nfv.eu).
30 Distributed Cloud Emulator (dcemulator)
31 Networking and monitoring functions
32 (c) 2015 by Steven Van Rossem <steven.vanrossem@intec.ugent.be>
36 from flask_restful
import Resource
37 from flask
import request
40 logging
.basicConfig(level
=logging
.INFO
)
42 CORS_HEADER
= {'Access-Control-Allow-Origin': '*'}
48 class MonitorInterfaceAction(Resource
):
50 Monitor the counters of a VNF interface
51 :param vnf_name: name of the VNF to be monitored
52 :param vnf_interface: name of the VNF interface to be monitored
53 :param metric: tx_bytes, rx_bytes, tx_packets, rx_packets
54 :return: message string indicating if the monitor action is succesful or not
58 def put(self
, vnf_name
, vnf_interface
=None, metric
='tx_packets'):
59 logging
.debug("REST CALL: start monitor VNF interface")
61 c
= net
.monitor_agent
.setup_metric(vnf_name
, vnf_interface
, metric
)
62 # return monitor message response
63 return str(c
), 200, CORS_HEADER
64 except Exception as ex
:
65 logging
.exception("API error.")
66 return ex
.message
, 500, CORS_HEADER
68 def delete(self
, vnf_name
, vnf_interface
=None, metric
='tx_packets'):
69 logging
.debug("REST CALL: stop monitor VNF interface")
71 c
= net
.monitor_agent
.stop_metric(vnf_name
, vnf_interface
, metric
)
72 # return monitor message response
73 return str(c
), 200, CORS_HEADER
74 except Exception as ex
:
75 logging
.exception("API error.")
76 return ex
.message
, 500, CORS_HEADER
79 class MonitorFlowAction(Resource
):
81 Monitor the counters of a specific flow
82 :param vnf_name: name of the VNF to be monitored
83 :param vnf_interface: name of the VNF interface to be monitored
84 :param metric: tx_bytes, rx_bytes, tx_packets, rx_packets
85 :param cookie: specific identifier of flows to monitor
86 :return: message string indicating if the monitor action is succesful or not
90 def put(self
, vnf_name
, vnf_interface
=None, metric
='tx_packets', cookie
=0):
91 logging
.debug("REST CALL: start monitor VNF interface")
93 c
= net
.monitor_agent
.setup_flow(vnf_name
, vnf_interface
, metric
, cookie
)
94 # return monitor message response
95 return str(c
), 200, CORS_HEADER
96 except Exception as ex
:
97 logging
.exception("API error.")
98 return ex
.message
, 500, CORS_HEADER
100 def delete(self
, vnf_name
, vnf_interface
=None, metric
='tx_packets', cookie
=0):
101 logging
.debug("REST CALL: stop monitor VNF interface")
103 c
= net
.monitor_agent
.stop_flow(vnf_name
, vnf_interface
, metric
, cookie
)
104 # return monitor message response
105 return str(c
), 200, CORS_HEADER
106 except Exception as ex
:
107 logging
.exception("API error.")
108 return ex
.message
, 500, CORS_HEADER