src/nsd/ping_pong_ns/scripts/start_traffic.py

   1 #!/usr/bin/env python3
   2
   3 ############################################################################
   4 # Copyright 2016 RIFT.IO Inc                                               #
   5 #                                                                          #
   6 # Licensed under the Apache License, Version 2.0 (the "License");          #
   7 # you may not use this file except in compliance with the License.         #
   8 # You may obtain a copy of the License at                                  #
   9 #                                                                          #
  10 #     http://www.apache.org/licenses/LICENSE-2.0                           #
  11 #                                                                          #
  12 # Unless required by applicable law or agreed to in writing, software      #
  13 # distributed under the License is distributed on an "AS IS" BASIS,        #
  14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
  15 # See the License for the specific language governing permissions and      #
  16 # limitations under the License.                                           #
  17 ############################################################################
  18
  19
  20 import argparse
  21 import logging
  22 import os
  23 import subprocess
  24 import sys
  25 import time
  26
  27 import yaml
  28
  29
  30 def start_traffic(yaml_cfg, logger):
  31     '''Use curl and set admin status to enable on pong and ping vnfs'''
  32
  33     def enable_service(mgmt_ip, port, vnf_type):
  34         curl_cmd = 'curl -D /dev/stdout -H "Accept: application/vnd.yang.data' \
  35                    '+xml" -H "Content-Type: application/vnd.yang.data+json" ' \
  36                    '-X POST -d "{{\\"enable\\":true}}" http://{mgmt_ip}:' \
  37                    '{mgmt_port}/api/v1/{vnf_type}/adminstatus/state'. \
  38                    format(
  39                        mgmt_ip=mgmt_ip,
  40                        mgmt_port=port,
  41                        vnf_type=vnf_type)
  42
  43         logger.debug("Executing cmd: %s", curl_cmd)
  44         proc = subprocess.run(curl_cmd, shell=True,
  45                               stdout=subprocess.PIPE,
  46                               stderr=subprocess.PIPE)
  47
  48         logger.debug("Process: {}".format(proc))
  49
  50         return proc.returncode
  51
  52     # Enable pong service first
  53     for index, vnfr in yaml_cfg['vnfr'].items():
  54         logger.debug("VNFR {}: {}".format(index, vnfr))
  55
  56         # Check if it is pong vnf
  57         if 'pong_vnf' in vnfr['name']:
  58             vnf_type = 'pong'
  59             port = 18889
  60             rc = enable_service(vnfr['mgmt_ip_address'], port, vnf_type)
  61             if rc != 0:
  62                 logger.error("Enable service for pong failed: {}".
  63                              format(rc))
  64                 return rc
  65             break
  66
  67     # Add a delay to provide pong port to come up
  68     time.sleep(1)
  69
  70     # Enable ping service next
  71     for index, vnfr in yaml_cfg['vnfr'].items():
  72         logger.debug("VNFR {}: {}".format(index, vnfr))
  73
  74         # Check if it is pong vnf
  75         if 'ping_vnf' in vnfr['name']:
  76             vnf_type = 'ping'
  77             port = 18888
  78             rc = enable_service(vnfr['mgmt_ip_address'], port, vnf_type)
  79             break
  80
  81     return rc
  82
  83
  84 def main(argv=sys.argv[1:]):
  85     try:
  86         parser = argparse.ArgumentParser()
  87         parser.add_argument("yaml_cfg_file", type=argparse.FileType('r'))
  88         parser.add_argument("-q", "--quiet", dest="verbose", action="store_false")
  89         args = parser.parse_args()
  90
  91         run_dir = os.path.join(os.environ['RIFT_INSTALL'], "var/run/rift")
  92         if not os.path.exists(run_dir):
  93             os.makedirs(run_dir)
  94         log_file = "{}/ping_pong_start_traffic-{}.log".format(run_dir, time.strftime("%Y%m%d%H%M%S"))
  95
  96         # logging.basicConfig(filename=log_file, level=logging.DEBUG)
  97         logger = logging.getLogger('ping-pong-start-traffic')
  98         logger.setLevel(logging.DEBUG)
  99
 100         fh = logging.FileHandler(log_file)
 101         fh.setLevel(logging.DEBUG)
 102
 103         ch = logging.StreamHandler()
 104         if args.verbose:
 105             ch.setLevel(logging.DEBUG)
 106         else:
 107             ch.setLevel(logging.INFO)
 108
 109         # create formatter and add it to the handlers
 110         formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
 111         fh.setFormatter(formatter)
 112         ch.setFormatter(formatter)
 113         logger.addHandler(fh)
 114         logger.addHandler(ch)
 115
 116     except Exception as e:
 117         logger.exception("Exception in {}: {}".format(__file__, e))
 118         sys.exit(1)
 119
 120     try:
 121         logger.debug("Input file: {}".format(args.yaml_cfg_file.name))
 122         yaml_str = args.yaml_cfg_file.read()
 123         yaml_cfg = yaml.load(yaml_str)
 124         logger.debug("Input YAML: {}".format(yaml_cfg))
 125
 126         rc = start_traffic(yaml_cfg, logger)
 127         logger.info("Return code: {}".format(rc))
 128         sys.exit(rc)
 129
 130     except Exception as e:
 131         logger.exception("Exception in {}: {}".format(__file__, e))
 132         sys.exit(1)
 133
 134 if __name__ == "__main__":
 135     main()