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#! /usr/bin/python
import requests
import json
import sys
from datetime import datetime
from vcpecommon import *
import csar_parser
import logging
import base64
class Preload:
def __init__(self, vcpecommon):
self.logger = logging.getLogger(__name__)
self.vcpecommon = vcpecommon
def replace(self, sz, replace_dict):
for old_string, new_string in replace_dict.items():
sz = sz.replace(old_string, new_string)
if self.vcpecommon.template_variable_symbol in sz:
self.logger.error('Error! Cannot find a value to replace ' + sz)
return sz
def generate_json(self, template_file, replace_dict):
with open(template_file) as json_input:
json_data = json.load(json_input)
stk = [json_data]
while len(stk) > 0:
data = stk.pop()
for k, v in data.items():
if type(v) is dict:
stk.append(v)
elif type(v) is list:
stk.extend(v)
elif type(v) is str or type(v) is unicode:
if self.vcpecommon.template_variable_symbol in v:
data[k] = self.replace(v, replace_dict)
else:
self.logger.warning('Unexpected line in template: %s. Look for value %s', template_file, v)
return json_data
def reset_sniro(self):
self.logger.debug('Clearing SNIRO data')
r = requests.post(self.vcpecommon.sniro_url + '/reset', headers=self.vcpecommon.sniro_headers)
if 2 != r.status_code / 100:
self.logger.debug(r.content)
self.logger.error('Clearing SNIRO date failed.')
sys.exit()
def preload_sniro(self, template_sniro_data, template_sniro_request, tunnelxconn_ar_name, vgw_name, vbrg_ar_name,
vgmux_svc_instance_uuid, vbrg_svc_instance_uuid):
self.reset_sniro()
self.logger.info('Preloading SNIRO for homing service')
replace_dict = {'${tunnelxconn_ar_name}': tunnelxconn_ar_name,
'${vgw_name}': vgw_name,
'${brg_ar_name}': vbrg_ar_name,
'${vgmux_svc_instance_uuid}': vgmux_svc_instance_uuid,
'${vbrg_svc_instance_uuid}': vbrg_svc_instance_uuid
}
sniro_data = self.generate_json(template_sniro_data, replace_dict)
self.logger.debug('SNIRO data:')
self.logger.debug(json.dumps(sniro_data, indent=4, sort_keys=True))
base64_sniro_data = base64.b64encode(json.dumps(sniro_data))
self.logger.debug('SNIRO data: 64')
self.logger.debug(base64_sniro_data)
replace_dict = {'${base64_sniro_data}': base64_sniro_data, '${sniro_ip}': self.vcpecommon.hosts['robot']}
sniro_request = self.generate_json(template_sniro_request, replace_dict)
self.logger.debug('SNIRO request:')
self.logger.debug(json.dumps(sniro_request, indent=4, sort_keys=True))
r = requests.post(self.vcpecommon.sniro_url, headers=self.vcpecommon.sniro_headers, json=sniro_request)
if 2 != r.status_code / 100:
response = r.json()
self.logger.debug(json.dumps(response, indent=4, sort_keys=True))
self.logger.error('SNIRO preloading failed.')
sys.exit()
return True
def preload_network(self, template_file, network_role, subnet_start_ip, subnet_gateway, common_dict, name_suffix):
"""
:param template_file:
:param network_role: cpe_signal, cpe_public, brg_bng, bng_mux, mux_gw
:param subnet_start_ip:
:param subnet_gateway:
:param name_suffix: e.g. '201711201311'
:return:
"""
network_name = '_'.join([self.vcpecommon.instance_name_prefix['network'], network_role.lower(), name_suffix])
subnet_name = self.vcpecommon.network_name_to_subnet_name(network_name)
common_dict['${' + network_role+'_net}'] = network_name
common_dict['${' + network_role+'_subnet}'] = subnet_name
replace_dict = {'${network_role}': network_role,
'${service_type}': 'vCPE',
'${network_type}': 'Generic NeutronNet',
'${network_name}': network_name,
'${subnet_start_ip}': subnet_start_ip,
'${subnet_gateway}': subnet_gateway
}
self.logger.info('Preloading network ' + network_role)
return self.preload(template_file, replace_dict, self.vcpecommon.sdnc_preload_network_url)
def preload(self, template_file, replace_dict, url):
json_data = self.generate_json(template_file, replace_dict)
self.logger.debug(json.dumps(json_data, indent=4, sort_keys=True))
r = requests.post(url, headers=self.vcpecommon.sdnc_headers, auth=self.vcpecommon.sdnc_userpass, json=json_data)
response = r.json()
if int(response.get('output', {}).get('response-code', 0)) != 200:
self.logger.debug(json.dumps(response, indent=4, sort_keys=True))
self.logger.error('Preloading failed.')
return False
return True
def preload_vgw(self, template_file, brg_mac, commont_dict, name_suffix):
replace_dict = {'${brg_mac}': brg_mac,
'${suffix}': name_suffix
}
replace_dict.update(commont_dict)
self.logger.info('Preloading vGW')
return self.preload(template_file, replace_dict, self.vcpecommon.sdnc_preload_vnf_url)
def preload_vfmodule(self, template_file, service_instance_id, vnf_model, vfmodule_model, common_dict, name_suffix):
"""
:param template_file:
:param service_instance_id:
:param vnf_model: parsing results from csar_parser
:param vfmodule_model: parsing results from csar_parser
:param common_dict:
:param name_suffix:
:return:
"""
# examples:
# vfmodule_model['modelCustomizationName']: "Vspinfra111601..base_vcpe_infra..module-0",
# vnf_model['modelCustomizationName']: "vspinfra111601 0",
vfmodule_name = '_'.join([self.vcpecommon.instance_name_prefix['vfmodule'],
vfmodule_model['modelCustomizationName'].split('..')[0].lower(), name_suffix])
# vnf_type and generic_vnf_type are identical
replace_dict = {'${vnf_type}': vfmodule_model['modelCustomizationName'],
'${generic_vnf_type}': vfmodule_model['modelCustomizationName'],
'${service_type}': service_instance_id,
'${generic_vnf_name}': vnf_model['modelCustomizationName'],
'${vnf_name}': vfmodule_name,
'${suffix}': name_suffix}
replace_dict.update(common_dict)
self.logger.info('Preloading VF Module ' + vfmodule_name)
return self.preload(template_file, replace_dict, self.vcpecommon.sdnc_preload_vnf_url)
def preload_all_networks(self, template_file, name_suffix):
common_dict = {'${' + k + '}': v for k, v in self.vcpecommon.common_preload_config.items()}
for network, v in self.vcpecommon.preload_network_config.items():
subnet_start_ip, subnet_gateway_ip = v
if not self.preload_network(template_file, network, subnet_start_ip, subnet_gateway_ip,
common_dict, name_suffix):
return None
return common_dict
def test(self):
# this is for testing purpose
name_suffix = datetime.now().strftime('%Y%m%d%H%M')
vcpecommon = VcpeCommon()
preloader = Preload(vcpecommon)
network_dict = {'${' + k + '}': v for k, v in self.vcpecommon.common_preload_config.items()}
template_file = 'preload_templates/template.network.json'
for k, v in self.vcpecommon.preload_network_config.items():
if not preloader.preload_network(template_file, k, v[0], v[1], network_dict, name_suffix):
break
print('---------------------------------------------------------------')
print('Network related replacement dictionary:')
print(json.dumps(network_dict, indent=4, sort_keys=True))
print('---------------------------------------------------------------')
keys = ['infra', 'bng', 'gmux', 'brg']
for key in keys:
csar_file = self.vcpecommon.find_file(key, 'csar', 'csar')
template_file = self.vcpecommon.find_file(key, 'json', 'preload_templates')
if csar_file and template_file:
parser = csar_parser.CsarParser()
parser.parse_csar(csar_file)
service_instance_id = 'test112233'
preloader.preload_vfmodule(template_file, service_instance_id, parser.vnf_models[0],
parser.vfmodule_models[0], network_dict, name_suffix)
def test_sniro(self):
template_sniro_data = self.vcpecommon.find_file('sniro_data', 'json', 'preload_templates')
template_sniro_request = self.vcpecommon.find_file('sniro_request', 'json', 'preload_templates')
vcperescust_csar = self.vcpecommon.find_file('rescust', 'csar', 'csar')
parser = csar_parser.CsarParser()
parser.parse_csar(vcperescust_csar)
tunnelxconn_ar_name = None
brg_ar_name = None
vgw_name = None
for model in parser.vnf_models:
if 'tunnel' in model['modelCustomizationName']:
tunnelxconn_ar_name = model['modelCustomizationName']
elif 'brg' in model['modelCustomizationName']:
brg_ar_name = model['modelCustomizationName']
elif 'vgw' in model['modelCustomizationName']:
vgw_name = model['modelCustomizationName']
if not (tunnelxconn_ar_name and brg_ar_name and vgw_name):
self.logger.error('Cannot find all names from %s.', vcperescust_csar)
sys.exit()
vgmux_svc_instance_uuid = '88888888888888'
vbrg_svc_instance_uuid = '999999999999999'
self.preload_sniro(template_sniro_data, template_sniro_request, tunnelxconn_ar_name, vgw_name, brg_ar_name,
vgmux_svc_instance_uuid, vbrg_svc_instance_uuid)
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