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# Copyright 2017 ZTE Corporation.
#
# 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 json
import logging
import traceback
from threading import Thread
import time
from lcm.pub.utils.syscomm import fun_name
from lcm.pub.utils.values import ignore_case_get
from lcm.pub.utils import restcall
from lcm.pub.exceptions import NSLCMException
logger = logging.getLogger(__name__)
RESULT_OK, RESULT_NG = "0", "1"
JOB_ERROR = 255
g_jobs_status = {}
"""
format of input_data
{
"jobId": uuid of job,
"nsInstanceId": id of ns instance,
"object_context": json format of nsd,
"object_additionalParamForNs": json format of additional parameters for ns,
"object_additionalParamForVnf": json format of additional parameters for vnf,
"vlCount": int type of VL count,
"vnfCount: int type of VNF count,
"sfcCount": int type of SFC count,
"sdnControllerId": uuid of SDN controller
}
"""
def run_ns_instantiate(input_data):
logger.debug("Enter %s, input_data is %s", fun_name(), input_data)
ns_instantiate_ok = False
job_id = ignore_case_get(input_data, "jobId")
ns_inst_id = ignore_case_get(input_data, "nsInstanceId")
nsd_json = ignore_case_get(input_data, "object_context")
ns_param_json = ignore_case_get(input_data, "object_additionalParamForNs")
vnf_param_json = ignore_case_get(input_data, "object_additionalParamForVnf")
vl_count = int(ignore_case_get(input_data, "vlCount", 0))
vnf_count = int(ignore_case_get(input_data, "vnfCount", 0))
sfc_count = int(ignore_case_get(input_data, "sfcCount", 0))
sdnc_id = ignore_case_get(input_data, "sdnControllerId")
g_jobs_status[job_id] = [1 for i in range(vnf_count)]
try:
update_job(job_id, 10, "0", "Start to create VL")
for i in range(vl_count):
create_vl(ns_inst_id, i + 1, nsd_json, ns_param_json)
update_job(job_id, 30, "0", "Start to create VNF")
jobs = [create_vnf(ns_inst_id, i + 1, vnf_param_json) for i in range(vnf_count)]
wait_until_jobs_done(job_id, jobs)
[confirm_vnf_status(inst_id) for inst_id, _, _ in jobs]
update_job(job_id, 70, "0", "Start to create SFC")
g_jobs_status[job_id] = [1 for i in range(sfc_count)]
jobs = [create_sfc(ns_inst_id, i + 1, nsd_json, sdnc_id) for i in range(sfc_count)]
wait_until_jobs_done(job_id, jobs)
[confirm_sfc_status(inst_id) for inst_id, _, _ in jobs]
update_job(job_id, 90, "0", "Start to post deal")
post_deal(ns_inst_id, "true")
update_job(job_id, 100, "0", "Create NS successfully.")
ns_instantiate_ok = True
except NSLCMException as e:
logger.error("Failded to Create NS: %s", e.message)
update_job(job_id, JOB_ERROR, "255", "Failded to Create NS.")
post_deal(ns_inst_id, "false")
except:
logger.error(traceback.format_exc())
update_job(job_id, JOB_ERROR, "255", "Failded to Create NS.")
post_deal(ns_inst_id, "false")
finally:
g_jobs_status.pop(job_id)
return ns_instantiate_ok
def create_vl(ns_inst_id, vl_index, nsd, ns_param):
uri = "api/nslcm/v1/ns/vls"
data = json.JSONEncoder().encode({
"nsInstanceId": ns_inst_id,
"vlIndex": vl_index,
"context": nsd,
"additionalParamForNs": ns_param
})
ret = restcall.req_by_msb(uri, "POST", data)
if ret[0] != 0:
logger.error("Failed to call create_vl(%s): %s", vl_index, ret[1])
raise NSLCMException("Failed to call create_vl(index is %s)" % vl_index)
ret[1] = json.JSONDecoder().decode(ret[1])
result = str(ret[1]["result"])
detail = ret[1]["detail"]
vl_id = ret[1]["vlId"]
if result != RESULT_OK:
logger.error("Failed to create VL(%s): %s", vl_id, detail)
raise NSLCMException("Failed to create VL(%s)" % vl_id)
logger.debug("Create VL(%s) successfully.", vl_id)
def create_vnf(ns_inst_id, vnf_index, nf_param):
uri = "api/nslcm/v1/ns/vnfs"
data = json.JSONEncoder().encode({
"nsInstanceId": ns_inst_id,
"vnfIndex": vnf_index,
"additionalParamForVnf": nf_param
})
ret = restcall.req_by_msb(uri, "POST", data)
if ret[0] != 0:
logger.error("Failed to call create_vnf(%s): %s", vnf_index, ret[1])
raise NSLCMException("Failed to call create_vnf(index is %s)" % vnf_index)
ret[1] = json.JSONDecoder().decode(ret[1])
vnf_inst_id = ret[1]["vnfInstId"]
job_id = ret[1]["jobId"]
logger.debug("Create VNF(%s) started.", vnf_inst_id)
return vnf_inst_id, job_id, vnf_index - 1
def create_sfc(ns_inst_id, fp_index, nsd_json, sdnc_id):
uri = "api/nslcm/v1/ns/sfcs"
data = json.JSONEncoder().encode({
"nsInstanceId": ns_inst_id,
"context": nsd_json,
"fpindex": fp_index,
"sdnControllerId": sdnc_id
})
ret = restcall.req_by_msb(uri, "POST", data)
if ret[0] != 0:
logger.error("Failed to call create_sfc(%s): %s", fp_index, ret[1])
raise NSLCMException("Failed to call create_sfc(index is %s)" % fp_index)
ret[1] = json.JSONDecoder().decode(ret[1])
sfc_inst_id = ret[1]["sfcInstId"]
job_id = ret[1]["jobId"]
logger.debug("Create SFC(%s) started.", sfc_inst_id)
return sfc_inst_id, job_id, fp_index - 1
def post_deal(ns_inst_id, status):
uri = "api/nslcm/v1/ns/{nsInstanceId}/postdeal".format(nsInstanceId=ns_inst_id)
data = json.JSONEncoder().encode({
"status": status
})
ret = restcall.req_by_msb(uri, "POST", data)
if ret[0] != 0:
logger.error("Failed to call post_deal(%s): %s", ns_inst_id, ret[1])
logger.debug("Call post_deal(%s, %s) successfully.", ns_inst_id, status)
def update_job(job_id, progress, errcode, desc):
uri = "api/nslcm/v1/jobs/{jobId}".format(jobId=job_id)
data = json.JSONEncoder().encode({
"progress": progress,
"errcode": errcode,
"desc": desc
})
restcall.req_by_msb(uri, "POST", data)
class JobWaitThread(Thread):
"""
Job Wait
"""
def __init__(self, inst_id, job_id, ns_job_id, index):
Thread.__init__(self)
self.inst_id = inst_id
self.job_id = job_id
self.ns_job_id = ns_job_id
self.index = index
self.retry_count = 60
self.interval_second = 3
def run(self):
count = 0
response_id, new_response_id = 0, 0
job_end_normal, job_timeout = False, True
while count < self.retry_count:
count = count + 1
time.sleep(self.interval_second)
uri = "/api/nslcm/v1/jobs/%s?responseId=%s" % (self.job_id, response_id)
ret = restcall.req_by_msb(uri, "GET")
if ret[0] != 0:
logger.error("Failed to query job: %s:%s", ret[2], ret[1])
continue
job_result = json.JSONDecoder().decode(ret[1])
if "responseDescriptor" not in job_result:
logger.error("Job(%s) does not exist.", self.job_id)
continue
progress = job_result["responseDescriptor"]["progress"]
new_response_id = job_result["responseDescriptor"]["responseId"]
job_desc = job_result["responseDescriptor"]["statusDescription"]
if new_response_id != response_id:
logger.debug("%s:%s:%s", progress, new_response_id, job_desc)
response_id = new_response_id
count = 0
if progress == JOB_ERROR:
job_timeout = False
logger.error("Job(%s) failed: %s", self.job_id, job_desc)
break
elif progress == 100:
job_end_normal, job_timeout = True, False
logger.info("Job(%s) ended normally", self.job_id)
break
if job_timeout:
logger.error("Job(%s) timeout", self.job_id)
if self.ns_job_id in g_jobs_status:
if job_end_normal:
g_jobs_status[self.ns_job_id][self.index] = 0
def wait_until_jobs_done(g_job_id, jobs):
job_threads = []
for inst_id, job_id, index in jobs:
job_threads.append(JobWaitThread(inst_id, job_id, g_job_id, index))
for t in job_threads:
t.start()
for t in job_threads:
t.join()
if g_job_id in g_jobs_status:
if sum(g_jobs_status[g_job_id]) > 0:
logger.error("g_jobs_status[%s]: %s", g_job_id, g_jobs_status[g_job_id])
raise NSLCMException("Some jobs failed!")
def confirm_vnf_status(vnf_inst_id):
uri = "api/nslcm/v1/ns/vnfs/{vnfInstId}".format(vnfInstId=vnf_inst_id)
ret = restcall.req_by_msb(uri, "GET")
if ret[0] != 0:
raise NSLCMException("Failed to call get_vnf(%s)" % vnf_inst_id)
ret[1] = json.JSONDecoder().decode(ret[1])
vnf_status = ret[1]["vnfStatus"]
if vnf_status != "active":
raise NSLCMException("Status of VNF(%s) is not active" % vnf_inst_id)
def confirm_sfc_status(sfc_inst_id):
uri = "api/nslcm/v1/ns/sfcs/{sfcInstId}".format(sfcInstId=sfc_inst_id)
ret = restcall.req_by_msb(uri, "GET")
if ret[0] != 0:
raise NSLCMException("Failed to call get_sfc(%s)" % sfc_inst_id)
ret[1] = json.JSONDecoder().decode(ret[1])
sfc_status = ret[1]["sfcStatus"]
if sfc_status != "active":
raise NSLCMException("Status of SFC(%s) is not active" % sfc_inst_id)
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