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osm.etsi.org / osm / RO / 4c1dd54ae02e82f11a60058a1b7c7b0137ac572e / . / NG-RO / osm_ng_ro / ns.py
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# -*- coding: utf-8 -*-
##
# Copyright 2020 Telefonica Investigacion y Desarrollo, S.A.U.
# 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.
##
from http import HTTPStatus
from itertools import product
import logging
from random import choice as random_choice
from threading import Lock
from time import time
from traceback import format_exc as traceback_format_exc
from typing import Any, Dict, List, Optional, Tuple, Type
from uuid import uuid4
from cryptography.hazmat.backends import default_backend as crypto_default_backend
from cryptography.hazmat.primitives import serialization as crypto_serialization
from cryptography.hazmat.primitives.asymmetric import rsa
from jinja2 import (
Environment,
select_autoescape,
StrictUndefined,
TemplateError,
TemplateNotFound,
UndefinedError,
)
from osm_common import (
dbmemory,
dbmongo,
fslocal,
fsmongo,
msgkafka,
msglocal,
version as common_version,
)
from osm_common.dbbase import DbBase, DbException
from osm_common.fsbase import FsBase, FsException
from osm_common.msgbase import MsgException
from osm_ng_ro.ns_thread import deep_get, NsWorker, NsWorkerException
from osm_ng_ro.validation import deploy_schema, validate_input
import yaml
__author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
min_common_version = "0.1.16"
class NsException(Exception):
def __init__(self, message, http_code=HTTPStatus.BAD_REQUEST):
self.http_code = http_code
super(Exception, self).__init__(message)
def get_process_id():
"""
Obtain a unique ID for this process. If running from inside docker, it will get docker ID. If not it
will provide a random one
:return: Obtained ID
"""
# Try getting docker id. If fails, get pid
try:
with open("/proc/self/cgroup", "r") as f:
text_id_ = f.readline()
_, _, text_id = text_id_.rpartition("/")
text_id = text_id.replace("\n", "")[:12]
if text_id:
return text_id
except Exception as error:
logging.exception(f"{error} occured while getting process id")
# Return a random id
return "".join(random_choice("0123456789abcdef") for _ in range(12))
def versiontuple(v):
"""utility for compare dot separate versions. Fills with zeros to proper number comparison"""
filled = []
for point in v.split("."):
filled.append(point.zfill(8))
return tuple(filled)
class Ns(object):
def __init__(self):
self.db = None
self.fs = None
self.msg = None
self.config = None
# self.operations = None
self.logger = None
# ^ Getting logger inside method self.start because parent logger (ro) is not available yet.
# If done now it will not be linked to parent not getting its handler and level
self.map_topic = {}
self.write_lock = None
self.vims_assigned = {}
self.next_worker = 0
self.plugins = {}
self.workers = []
self.process_params_function_map = {
"net": Ns._process_net_params,
"image": Ns._process_image_params,
"flavor": Ns._process_flavor_params,
"vdu": Ns._process_vdu_params,
"affinity-or-anti-affinity-group": Ns._process_affinity_group_params,
}
self.db_path_map = {
"net": "vld",
"image": "image",
"flavor": "flavor",
"vdu": "vdur",
"affinity-or-anti-affinity-group": "affinity-or-anti-affinity-group",
}
def init_db(self, target_version):
pass
def start(self, config):
"""
Connect to database, filesystem storage, and messaging
:param config: two level dictionary with configuration. Top level should contain 'database', 'storage',
:param config: Configuration of db, storage, etc
:return: None
"""
self.config = config
self.config["process_id"] = get_process_id() # used for HA identity
self.logger = logging.getLogger("ro.ns")
# check right version of common
if versiontuple(common_version) < versiontuple(min_common_version):
raise NsException(
"Not compatible osm/common version '{}'. Needed '{}' or higher".format(
common_version, min_common_version
)
)
try:
if not self.db:
if config["database"]["driver"] == "mongo":
self.db = dbmongo.DbMongo()
self.db.db_connect(config["database"])
elif config["database"]["driver"] == "memory":
self.db = dbmemory.DbMemory()
self.db.db_connect(config["database"])
else:
raise NsException(
"Invalid configuration param '{}' at '[database]':'driver'".format(
config["database"]["driver"]
)
)
if not self.fs:
if config["storage"]["driver"] == "local":
self.fs = fslocal.FsLocal()
self.fs.fs_connect(config["storage"])
elif config["storage"]["driver"] == "mongo":
self.fs = fsmongo.FsMongo()
self.fs.fs_connect(config["storage"])
elif config["storage"]["driver"] is None:
pass
else:
raise NsException(
"Invalid configuration param '{}' at '[storage]':'driver'".format(
config["storage"]["driver"]
)
)
if not self.msg:
if config["message"]["driver"] == "local":
self.msg = msglocal.MsgLocal()
self.msg.connect(config["message"])
elif config["message"]["driver"] == "kafka":
self.msg = msgkafka.MsgKafka()
self.msg.connect(config["message"])
else:
raise NsException(
"Invalid configuration param '{}' at '[message]':'driver'".format(
config["message"]["driver"]
)
)
# TODO load workers to deal with exising database tasks
self.write_lock = Lock()
except (DbException, FsException, MsgException) as e:
raise NsException(str(e), http_code=e.http_code)
def get_assigned_vims(self):
return list(self.vims_assigned.keys())
def stop(self):
try:
if self.db:
self.db.db_disconnect()
if self.fs:
self.fs.fs_disconnect()
if self.msg:
self.msg.disconnect()
self.write_lock = None
except (DbException, FsException, MsgException) as e:
raise NsException(str(e), http_code=e.http_code)
for worker in self.workers:
worker.insert_task(("terminate",))
def _create_worker(self):
"""
Look for a worker thread in idle status. If not found it creates one unless the number of threads reach the
limit of 'server.ns_threads' configuration. If reached, it just assigns one existing thread
return the index of the assigned worker thread. Worker threads are storead at self.workers
"""
# Look for a thread in idle status
worker_id = next(
(
i
for i in range(len(self.workers))
if self.workers[i] and self.workers[i].idle
),
None,
)
if worker_id is not None:
# unset idle status to avoid race conditions
self.workers[worker_id].idle = False
else:
worker_id = len(self.workers)
if worker_id < self.config["global"]["server.ns_threads"]:
# create a new worker
self.workers.append(
NsWorker(worker_id, self.config, self.plugins, self.db)
)
self.workers[worker_id].start()
else:
# reached maximum number of threads, assign VIM to an existing one
worker_id = self.next_worker
self.next_worker = (self.next_worker + 1) % self.config["global"][
"server.ns_threads"
]
return worker_id
def assign_vim(self, target_id):
with self.write_lock:
return self._assign_vim(target_id)
def _assign_vim(self, target_id):
if target_id not in self.vims_assigned:
worker_id = self.vims_assigned[target_id] = self._create_worker()
self.workers[worker_id].insert_task(("load_vim", target_id))
def reload_vim(self, target_id):
# send reload_vim to the thread working with this VIM and inform all that a VIM has been changed,
# this is because database VIM information is cached for threads working with SDN
with self.write_lock:
for worker in self.workers:
if worker and not worker.idle:
worker.insert_task(("reload_vim", target_id))
def unload_vim(self, target_id):
with self.write_lock:
return self._unload_vim(target_id)
def _unload_vim(self, target_id):
if target_id in self.vims_assigned:
worker_id = self.vims_assigned[target_id]
self.workers[worker_id].insert_task(("unload_vim", target_id))
del self.vims_assigned[target_id]
def check_vim(self, target_id):
with self.write_lock:
if target_id in self.vims_assigned:
worker_id = self.vims_assigned[target_id]
else:
worker_id = self._create_worker()
worker = self.workers[worker_id]
worker.insert_task(("check_vim", target_id))
def unload_unused_vims(self):
with self.write_lock:
vims_to_unload = []
for target_id in self.vims_assigned:
if not self.db.get_one(
"ro_tasks",
q_filter={
"target_id": target_id,
"tasks.status": ["SCHEDULED", "BUILD", "DONE", "FAILED"],
},
fail_on_empty=False,
):
vims_to_unload.append(target_id)
for target_id in vims_to_unload:
self._unload_vim(target_id)
@staticmethod
def _get_cloud_init(
db: Type[DbBase],
fs: Type[FsBase],
location: str,
) -> str:
"""This method reads cloud init from a file.
Note: Not used as cloud init content is provided in the http body.
Args:
db (Type[DbBase]): [description]
fs (Type[FsBase]): [description]
location (str): can be 'vnfr_id:file:file_name' or 'vnfr_id:vdu:vdu_idex'
Raises:
NsException: [description]
NsException: [description]
Returns:
str: [description]
"""
vnfd_id, _, other = location.partition(":")
_type, _, name = other.partition(":")
vnfd = db.get_one("vnfds", {"_id": vnfd_id})
if _type == "file":
base_folder = vnfd["_admin"]["storage"]
cloud_init_file = "{}/{}/cloud_init/{}".format(
base_folder["folder"], base_folder["pkg-dir"], name
)
if not fs:
raise NsException(
"Cannot read file '{}'. Filesystem not loaded, change configuration at storage.driver".format(
cloud_init_file
)
)
with fs.file_open(cloud_init_file, "r") as ci_file:
cloud_init_content = ci_file.read()
elif _type == "vdu":
cloud_init_content = vnfd["vdu"][int(name)]["cloud-init"]
else:
raise NsException("Mismatch descriptor for cloud init: {}".format(location))
return cloud_init_content
@staticmethod
def _parse_jinja2(
cloud_init_content: str,
params: Dict[str, Any],
context: str,
) -> str:
"""Function that processes the cloud init to replace Jinja2 encoded parameters.
Args:
cloud_init_content (str): [description]
params (Dict[str, Any]): [description]
context (str): [description]
Raises:
NsException: [description]
NsException: [description]
Returns:
str: [description]
"""
try:
env = Environment(
undefined=StrictUndefined,
autoescape=select_autoescape(default_for_string=True, default=True),
)
template = env.from_string(cloud_init_content)
return template.render(params or {})
except UndefinedError as e:
raise NsException(
"Variable '{}' defined at vnfd='{}' must be provided in the instantiation parameters"
"inside the 'additionalParamsForVnf' block".format(e, context)
)
except (TemplateError, TemplateNotFound) as e:
raise NsException(
"Error parsing Jinja2 to cloud-init content at vnfd='{}': {}".format(
context, e
)
)
def _create_db_ro_nsrs(self, nsr_id, now):
try:
key = rsa.generate_private_key(
backend=crypto_default_backend(), public_exponent=65537, key_size=2048
)
private_key = key.private_bytes(
crypto_serialization.Encoding.PEM,
crypto_serialization.PrivateFormat.PKCS8,
crypto_serialization.NoEncryption(),
)
public_key = key.public_key().public_bytes(
crypto_serialization.Encoding.OpenSSH,
crypto_serialization.PublicFormat.OpenSSH,
)
private_key = private_key.decode("utf8")
# Change first line because Paramiko needs a explicit start with 'BEGIN RSA PRIVATE KEY'
i = private_key.find("\n")
private_key = "-----BEGIN RSA PRIVATE KEY-----" + private_key[i:]
public_key = public_key.decode("utf8")
except Exception as e:
raise NsException("Cannot create ssh-keys: {}".format(e))
schema_version = "1.1"
private_key_encrypted = self.db.encrypt(
private_key, schema_version=schema_version, salt=nsr_id
)
db_content = {
"_id": nsr_id,
"_admin": {
"created": now,
"modified": now,
"schema_version": schema_version,
},
"public_key": public_key,
"private_key": private_key_encrypted,
"actions": [],
}
self.db.create("ro_nsrs", db_content)
return db_content
@staticmethod
def _create_task(
deployment_info: Dict[str, Any],
target_id: str,
item: str,
action: str,
target_record: str,
target_record_id: str,
extra_dict: Dict[str, Any] = None,
) -> Dict[str, Any]:
"""Function to create task dict from deployment information.
Args:
deployment_info (Dict[str, Any]): [description]
target_id (str): [description]
item (str): [description]
action (str): [description]
target_record (str): [description]
target_record_id (str): [description]
extra_dict (Dict[str, Any], optional): [description]. Defaults to None.
Returns:
Dict[str, Any]: [description]
"""
task = {
"target_id": target_id, # it will be removed before pushing at database
"action_id": deployment_info.get("action_id"),
"nsr_id": deployment_info.get("nsr_id"),
"task_id": f"{deployment_info.get('action_id')}:{deployment_info.get('task_index')}",
"status": "SCHEDULED",
"action": action,
"item": item,
"target_record": target_record,
"target_record_id": target_record_id,
}
if extra_dict:
task.update(extra_dict) # params, find_params, depends_on
deployment_info["task_index"] = deployment_info.get("task_index", 0) + 1
return task
@staticmethod
def _create_ro_task(
target_id: str,
task: Dict[str, Any],
) -> Dict[str, Any]:
"""Function to create an RO task from task information.
Args:
target_id (str): [description]
task (Dict[str, Any]): [description]
Returns:
Dict[str, Any]: [description]
"""
now = time()
_id = task.get("task_id")
db_ro_task = {
"_id": _id,
"locked_by": None,
"locked_at": 0.0,
"target_id": target_id,
"vim_info": {
"created": False,
"created_items": None,
"vim_id": None,
"vim_name": None,
"vim_status": None,
"vim_details": None,
"vim_message": None,
"refresh_at": None,
},
"modified_at": now,
"created_at": now,
"to_check_at": now,
"tasks": [task],
}
return db_ro_task
@staticmethod
def _process_image_params(
target_image: Dict[str, Any],
indata: Dict[str, Any],
vim_info: Dict[str, Any],
target_record_id: str,
**kwargs: Dict[str, Any],
) -> Dict[str, Any]:
"""Function to process VDU image parameters.
Args:
target_image (Dict[str, Any]): [description]
indata (Dict[str, Any]): [description]
vim_info (Dict[str, Any]): [description]
target_record_id (str): [description]
Returns:
Dict[str, Any]: [description]
"""
find_params = {}
if target_image.get("image"):
find_params["filter_dict"] = {"name": target_image.get("image")}
if target_image.get("vim_image_id"):
find_params["filter_dict"] = {"id": target_image.get("vim_image_id")}
if target_image.get("image_checksum"):
find_params["filter_dict"] = {
"checksum": target_image.get("image_checksum")
}
return {"find_params": find_params}
@staticmethod
def _get_resource_allocation_params(
quota_descriptor: Dict[str, Any],
) -> Dict[str, Any]:
"""Read the quota_descriptor from vnfd and fetch the resource allocation properties from the
descriptor object.
Args:
quota_descriptor (Dict[str, Any]): cpu/mem/vif/disk-io quota descriptor
Returns:
Dict[str, Any]: quota params for limit, reserve, shares from the descriptor object
"""
quota = {}
if quota_descriptor.get("limit"):
quota["limit"] = int(quota_descriptor["limit"])
if quota_descriptor.get("reserve"):
quota["reserve"] = int(quota_descriptor["reserve"])
if quota_descriptor.get("shares"):
quota["shares"] = int(quota_descriptor["shares"])
return quota
@staticmethod
def _process_guest_epa_quota_params(
guest_epa_quota: Dict[str, Any],
epa_vcpu_set: bool,
) -> Dict[str, Any]:
"""Function to extract the guest epa quota parameters.
Args:
guest_epa_quota (Dict[str, Any]): [description]
epa_vcpu_set (bool): [description]
Returns:
Dict[str, Any]: [description]
"""
result = {}
if guest_epa_quota.get("cpu-quota") and not epa_vcpu_set:
cpuquota = Ns._get_resource_allocation_params(
guest_epa_quota.get("cpu-quota")
)
if cpuquota:
result["cpu-quota"] = cpuquota
if guest_epa_quota.get("mem-quota"):
vduquota = Ns._get_resource_allocation_params(
guest_epa_quota.get("mem-quota")
)
if vduquota:
result["mem-quota"] = vduquota
if guest_epa_quota.get("disk-io-quota"):
diskioquota = Ns._get_resource_allocation_params(
guest_epa_quota.get("disk-io-quota")
)
if diskioquota:
result["disk-io-quota"] = diskioquota
if guest_epa_quota.get("vif-quota"):
vifquota = Ns._get_resource_allocation_params(
guest_epa_quota.get("vif-quota")
)
if vifquota:
result["vif-quota"] = vifquota
return result
@staticmethod
def _process_guest_epa_numa_params(
guest_epa_quota: Dict[str, Any],
) -> Tuple[Dict[str, Any], bool]:
"""[summary]
Args:
guest_epa_quota (Dict[str, Any]): [description]
Returns:
Tuple[Dict[str, Any], bool]: [description]
"""
numa = {}
numa_list = []
epa_vcpu_set = False
if guest_epa_quota.get("numa-node-policy"):
numa_node_policy = guest_epa_quota.get("numa-node-policy")
if numa_node_policy.get("node"):
for numa_node in numa_node_policy["node"]:
vcpu_list = []
if numa_node.get("id"):
numa["id"] = int(numa_node["id"])
if numa_node.get("vcpu"):
for vcpu in numa_node.get("vcpu"):
vcpu_id = int(vcpu.get("id"))
vcpu_list.append(vcpu_id)
numa["vcpu"] = vcpu_list
if numa_node.get("num-cores"):
numa["cores"] = numa_node["num-cores"]
epa_vcpu_set = True
paired_threads = numa_node.get("paired-threads", {})
if paired_threads.get("num-paired-threads"):
numa["paired_threads"] = int(
numa_node["paired-threads"]["num-paired-threads"]
)
epa_vcpu_set = True
if paired_threads.get("paired-thread-ids"):
numa["paired-threads-id"] = []
for pair in paired_threads["paired-thread-ids"]:
numa["paired-threads-id"].append(
(
str(pair["thread-a"]),
str(pair["thread-b"]),
)
)
if numa_node.get("num-threads"):
numa["threads"] = int(numa_node["num-threads"])
epa_vcpu_set = True
if numa_node.get("memory-mb"):
numa["memory"] = max(int(int(numa_node["memory-mb"]) / 1024), 1)
numa_list.append(numa)
numa = {}
return numa_list, epa_vcpu_set
@staticmethod
def _process_guest_epa_cpu_pinning_params(
guest_epa_quota: Dict[str, Any],
vcpu_count: int,
epa_vcpu_set: bool,
) -> Tuple[Dict[str, Any], bool]:
"""[summary]
Args:
guest_epa_quota (Dict[str, Any]): [description]
vcpu_count (int): [description]
epa_vcpu_set (bool): [description]
Returns:
Tuple[Dict[str, Any], bool]: [description]
"""
numa = {}
local_epa_vcpu_set = epa_vcpu_set
if (
guest_epa_quota.get("cpu-pinning-policy") == "DEDICATED"
and not epa_vcpu_set
):
# Pinning policy "REQUIRE" uses threads as host should support SMT architecture
# Pinning policy "ISOLATE" uses cores as host should not support SMT architecture
# Pinning policy "PREFER" uses threads in case host supports SMT architecture
numa[
"cores"
if guest_epa_quota.get("cpu-thread-pinning-policy") == "ISOLATE"
else "threads"
] = max(vcpu_count, 1)
local_epa_vcpu_set = True
return numa, local_epa_vcpu_set
@staticmethod
def _process_epa_params(
target_flavor: Dict[str, Any],
) -> Dict[str, Any]:
"""[summary]
Args:
target_flavor (Dict[str, Any]): [description]
Returns:
Dict[str, Any]: [description]
"""
extended = {}
numa = {}
numa_list = []
if target_flavor.get("guest-epa"):
guest_epa = target_flavor["guest-epa"]
numa_list, epa_vcpu_set = Ns._process_guest_epa_numa_params(
guest_epa_quota=guest_epa
)
if guest_epa.get("mempage-size"):
extended["mempage-size"] = guest_epa.get("mempage-size")
if guest_epa.get("cpu-pinning-policy"):
extended["cpu-pinning-policy"] = guest_epa.get("cpu-pinning-policy")
if guest_epa.get("cpu-thread-pinning-policy"):
extended["cpu-thread-pinning-policy"] = guest_epa.get(
"cpu-thread-pinning-policy"
)
if guest_epa.get("numa-node-policy"):
if guest_epa.get("numa-node-policy").get("mem-policy"):
extended["mem-policy"] = guest_epa.get("numa-node-policy").get(
"mem-policy"
)
tmp_numa, epa_vcpu_set = Ns._process_guest_epa_cpu_pinning_params(
guest_epa_quota=guest_epa,
vcpu_count=int(target_flavor.get("vcpu-count", 1)),
epa_vcpu_set=epa_vcpu_set,
)
for numa in numa_list:
numa.update(tmp_numa)
extended.update(
Ns._process_guest_epa_quota_params(
guest_epa_quota=guest_epa,
epa_vcpu_set=epa_vcpu_set,
)
)
if numa:
extended["numas"] = numa_list
return extended
@staticmethod
def _process_flavor_params(
target_flavor: Dict[str, Any],
indata: Dict[str, Any],
vim_info: Dict[str, Any],
target_record_id: str,
**kwargs: Dict[str, Any],
) -> Dict[str, Any]:
"""[summary]
Args:
target_flavor (Dict[str, Any]): [description]
indata (Dict[str, Any]): [description]
vim_info (Dict[str, Any]): [description]
target_record_id (str): [description]
Returns:
Dict[str, Any]: [description]
"""
db = kwargs.get("db")
target_vdur = {}
flavor_data = {
"disk": int(target_flavor["storage-gb"]),
"ram": int(target_flavor["memory-mb"]),
"vcpus": int(target_flavor["vcpu-count"]),
}
for vnf in indata.get("vnf", []):
for vdur in vnf.get("vdur", []):
if vdur.get("ns-flavor-id") == target_flavor.get("id"):
target_vdur = vdur
if db and isinstance(indata.get("vnf"), list):
vnfd_id = indata.get("vnf")[0].get("vnfd-id")
vnfd = db.get_one("vnfds", {"_id": vnfd_id})
# check if there is persistent root disk
for vdu in vnfd.get("vdu", ()):
if vdu["name"] == target_vdur.get("vdu-name"):
for vsd in vnfd.get("virtual-storage-desc", ()):
if vsd.get("id") == vdu.get("virtual-storage-desc", [[]])[0]:
root_disk = vsd
if (
root_disk.get("type-of-storage")
== "persistent-storage:persistent-storage"
):
flavor_data["disk"] = 0
for storage in target_vdur.get("virtual-storages", []):
if (
storage.get("type-of-storage")
== "etsi-nfv-descriptors:ephemeral-storage"
):
flavor_data["ephemeral"] = int(storage.get("size-of-storage", 0))
elif storage.get("type-of-storage") == "etsi-nfv-descriptors:swap-storage":
flavor_data["swap"] = int(storage.get("size-of-storage", 0))
extended = Ns._process_epa_params(target_flavor)
if extended:
flavor_data["extended"] = extended
extra_dict = {"find_params": {"flavor_data": flavor_data}}
flavor_data_name = flavor_data.copy()
flavor_data_name["name"] = target_flavor["name"]
extra_dict["params"] = {"flavor_data": flavor_data_name}
return extra_dict
@staticmethod
def _process_net_params(
target_vld: Dict[str, Any],
indata: Dict[str, Any],
vim_info: Dict[str, Any],
target_record_id: str,
**kwargs: Dict[str, Any],
) -> Dict[str, Any]:
"""Function to process network parameters.
Args:
target_vld (Dict[str, Any]): [description]
indata (Dict[str, Any]): [description]
vim_info (Dict[str, Any]): [description]
target_record_id (str): [description]
Returns:
Dict[str, Any]: [description]
"""
extra_dict = {}
if vim_info.get("sdn"):
# vnf_preffix = "vnfrs:{}".format(vnfr_id)
# ns_preffix = "nsrs:{}".format(nsr_id)
# remove the ending ".sdn
vld_target_record_id, _, _ = target_record_id.rpartition(".")
extra_dict["params"] = {
k: vim_info[k]
for k in ("sdn-ports", "target_vim", "vlds", "type")
if vim_info.get(k)
}
# TODO needed to add target_id in the dependency.
if vim_info.get("target_vim"):
extra_dict["depends_on"] = [
f"{vim_info.get('target_vim')} {vld_target_record_id}"
]
return extra_dict
if vim_info.get("vim_network_name"):
extra_dict["find_params"] = {
"filter_dict": {
"name": vim_info.get("vim_network_name"),
},
}
elif vim_info.get("vim_network_id"):
extra_dict["find_params"] = {
"filter_dict": {
"id": vim_info.get("vim_network_id"),
},
}
elif target_vld.get("mgmt-network") and not vim_info.get("provider_network"):
extra_dict["find_params"] = {
"mgmt": True,
"name": target_vld["id"],
}
else:
# create
extra_dict["params"] = {
"net_name": (
f"{indata.get('name')[:16]}-{target_vld.get('name', target_vld.get('id'))[:16]}"
),
"ip_profile": vim_info.get("ip_profile"),
"provider_network_profile": vim_info.get("provider_network"),
}
if not target_vld.get("underlay"):
extra_dict["params"]["net_type"] = "bridge"
else:
extra_dict["params"]["net_type"] = (
"ptp" if target_vld.get("type") == "ELINE" else "data"
)
return extra_dict
@staticmethod
def find_persistent_root_volumes(
vnfd: dict,
target_vdu: dict,
vdu_instantiation_volumes_list: list,
disk_list: list,
) -> Dict[str, any]:
"""Find the persistent root volumes and add them to the disk_list
by parsing the instantiation parameters.
Args:
vnfd (dict): VNF descriptor
target_vdu (dict): processed VDU
vdu_instantiation_volumes_list (list): instantiation parameters for the each VDU as a list
disk_list (list): to be filled up
Returns:
persistent_root_disk (dict): Details of persistent root disk
"""
persistent_root_disk = {}
# There can be only one root disk, when we find it, it will return the result
for vdu, vsd in product(
vnfd.get("vdu", ()), vnfd.get("virtual-storage-desc", ())
):
if (
vdu["name"] == target_vdu["vdu-name"]
and vsd.get("id") == vdu.get("virtual-storage-desc", [[]])[0]
):
root_disk = vsd
if (
root_disk.get("type-of-storage")
== "persistent-storage:persistent-storage"
):
for vdu_volume in vdu_instantiation_volumes_list:
if (
vdu_volume["vim-volume-id"]
and root_disk["id"] == vdu_volume["name"]
):
persistent_root_disk[vsd["id"]] = {
"vim_volume_id": vdu_volume["vim-volume-id"],
"image_id": vdu.get("sw-image-desc"),
}
disk_list.append(persistent_root_disk[vsd["id"]])
return persistent_root_disk
else:
if root_disk.get("size-of-storage"):
persistent_root_disk[vsd["id"]] = {
"image_id": vdu.get("sw-image-desc"),
"size": root_disk.get("size-of-storage"),
"keep": Ns.is_volume_keeping_required(root_disk),
}
disk_list.append(persistent_root_disk[vsd["id"]])
return persistent_root_disk
@staticmethod
def find_persistent_volumes(
persistent_root_disk: dict,
target_vdu: dict,
vdu_instantiation_volumes_list: list,
disk_list: list,
) -> None:
"""Find the ordinary persistent volumes and add them to the disk_list
by parsing the instantiation parameters.
Args:
persistent_root_disk: persistent root disk dictionary
target_vdu: processed VDU
vdu_instantiation_volumes_list: instantiation parameters for the each VDU as a list
disk_list: to be filled up
"""
# Find the ordinary volumes which are not added to the persistent_root_disk
persistent_disk = {}
for disk in target_vdu.get("virtual-storages", {}):
if (
disk.get("type-of-storage") == "persistent-storage:persistent-storage"
and disk["id"] not in persistent_root_disk.keys()
):
for vdu_volume in vdu_instantiation_volumes_list:
if vdu_volume["vim-volume-id"] and disk["id"] == vdu_volume["name"]:
persistent_disk[disk["id"]] = {
"vim_volume_id": vdu_volume["vim-volume-id"],
}
disk_list.append(persistent_disk[disk["id"]])
else:
if disk["id"] not in persistent_disk.keys():
persistent_disk[disk["id"]] = {
"size": disk.get("size-of-storage"),
"keep": Ns.is_volume_keeping_required(disk),
}
disk_list.append(persistent_disk[disk["id"]])
@staticmethod
def is_volume_keeping_required(virtual_storage_desc: Dict[str, Any]) -> bool:
"""Function to decide keeping persistent volume
upon VDU deletion.
Args:
virtual_storage_desc (Dict[str, Any]): virtual storage description dictionary
Returns:
bool (True/False)
"""
if not virtual_storage_desc.get("vdu-storage-requirements"):
return False
for item in virtual_storage_desc.get("vdu-storage-requirements", {}):
if item.get("key") == "keep-volume" and item.get("value") == "true":
return True
return False
@staticmethod
def _sort_vdu_interfaces(target_vdu: dict) -> None:
"""Sort the interfaces according to position number.
Args:
target_vdu (dict): Details of VDU to be created
"""
# If the position info is provided for all the interfaces, it will be sorted
# according to position number ascendingly.
sorted_interfaces = sorted(
target_vdu["interfaces"],
key=lambda x: (x.get("position") is None, x.get("position")),
)
target_vdu["interfaces"] = sorted_interfaces
@staticmethod
def _partially_locate_vdu_interfaces(target_vdu: dict) -> None:
"""Only place the interfaces which has specific position.
Args:
target_vdu (dict): Details of VDU to be created
"""
# If the position info is provided for some interfaces but not all of them, the interfaces
# which has specific position numbers will be placed and others' positions will not be taken care.
if any(
i.get("position") + 1
for i in target_vdu["interfaces"]
if i.get("position") is not None
):
n = len(target_vdu["interfaces"])
sorted_interfaces = [-1] * n
k, m = 0, 0
while k < n:
if target_vdu["interfaces"][k].get("position") is not None:
if any(i.get("position") == 0 for i in target_vdu["interfaces"]):
idx = target_vdu["interfaces"][k]["position"] + 1
else:
idx = target_vdu["interfaces"][k]["position"]
sorted_interfaces[idx - 1] = target_vdu["interfaces"][k]
k += 1
while m < n:
if target_vdu["interfaces"][m].get("position") is None:
idy = sorted_interfaces.index(-1)
sorted_interfaces[idy] = target_vdu["interfaces"][m]
m += 1
target_vdu["interfaces"] = sorted_interfaces
@staticmethod
def _prepare_vdu_cloud_init(
target_vdu: dict, vdu2cloud_init: dict, db: object, fs: object
) -> Dict:
"""Fill cloud_config dict with cloud init details.
Args:
target_vdu (dict): Details of VDU to be created
vdu2cloud_init (dict): Cloud init dict
db (object): DB object
fs (object): FS object
Returns:
cloud_config (dict): Cloud config details of VDU
"""
# cloud config
cloud_config = {}
if target_vdu.get("cloud-init"):
if target_vdu["cloud-init"] not in vdu2cloud_init:
vdu2cloud_init[target_vdu["cloud-init"]] = Ns._get_cloud_init(
db=db,
fs=fs,
location=target_vdu["cloud-init"],
)
cloud_content_ = vdu2cloud_init[target_vdu["cloud-init"]]
cloud_config["user-data"] = Ns._parse_jinja2(
cloud_init_content=cloud_content_,
params=target_vdu.get("additionalParams"),
context=target_vdu["cloud-init"],
)
if target_vdu.get("boot-data-drive"):
cloud_config["boot-data-drive"] = target_vdu.get("boot-data-drive")
return cloud_config
@staticmethod
def _check_vld_information_of_interfaces(
interface: dict, ns_preffix: str, vnf_preffix: str
) -> Optional[str]:
"""Prepare the net_text by the virtual link information for vnf and ns level.
Args:
interface (dict): Interface details
ns_preffix (str): Prefix of NS
vnf_preffix (str): Prefix of VNF
Returns:
net_text (str): information of net
"""
net_text = ""
if interface.get("ns-vld-id"):
net_text = ns_preffix + ":vld." + interface["ns-vld-id"]
elif interface.get("vnf-vld-id"):
net_text = vnf_preffix + ":vld." + interface["vnf-vld-id"]
return net_text
@staticmethod
def _prepare_interface_port_security(interface: dict) -> None:
"""
Args:
interface (dict): Interface details
"""
if "port-security-enabled" in interface:
interface["port_security"] = interface.pop("port-security-enabled")
if "port-security-disable-strategy" in interface:
interface["port_security_disable_strategy"] = interface.pop(
"port-security-disable-strategy"
)
@staticmethod
def _create_net_item_of_interface(interface: dict, net_text: str) -> dict:
"""Prepare net item including name, port security, floating ip etc.
Args:
interface (dict): Interface details
net_text (str): information of net
Returns:
net_item (dict): Dict including net details
"""
net_item = {
x: v
for x, v in interface.items()
if x
in (
"name",
"vpci",
"port_security",
"port_security_disable_strategy",
"floating_ip",
)
}
net_item["net_id"] = "TASK-" + net_text
net_item["type"] = "virtual"
return net_item
@staticmethod
def _prepare_type_of_interface(
interface: dict, tasks_by_target_record_id: dict, net_text: str, net_item: dict
) -> None:
"""Fill the net item type by interface type such as SR-IOV, OM-MGMT, bridge etc.
Args:
interface (dict): Interface details
tasks_by_target_record_id (dict): Task details
net_text (str): information of net
net_item (dict): Dict including net details
"""
# TODO mac_address: used for SR-IOV ifaces #TODO for other types
# TODO floating_ip: True/False (or it can be None)
if interface.get("type") in ("SR-IOV", "PCI-PASSTHROUGH"):
# Mark the net create task as type data
if deep_get(
tasks_by_target_record_id,
net_text,
"extra_dict",
"params",
"net_type",
):
tasks_by_target_record_id[net_text]["extra_dict"]["params"][
"net_type"
] = "data"
net_item["use"] = "data"
net_item["model"] = interface["type"]
net_item["type"] = interface["type"]
elif (
interface.get("type") == "OM-MGMT"
or interface.get("mgmt-interface")
or interface.get("mgmt-vnf")
):
net_item["use"] = "mgmt"
else:
# If interface.get("type") in ("VIRTIO", "E1000", "PARAVIRT"):
net_item["use"] = "bridge"
net_item["model"] = interface.get("type")
@staticmethod
def _prepare_vdu_interfaces(
target_vdu: dict,
extra_dict: dict,
ns_preffix: str,
vnf_preffix: str,
logger: object,
tasks_by_target_record_id: dict,
net_list: list,
) -> None:
"""Prepare the net_item and add net_list, add mgmt interface to extra_dict.
Args:
target_vdu (dict): VDU to be created
extra_dict (dict): Dictionary to be filled
ns_preffix (str): NS prefix as string
vnf_preffix (str): VNF prefix as string
logger (object): Logger Object
tasks_by_target_record_id (dict): Task details
net_list (list): Net list of VDU
"""
for iface_index, interface in enumerate(target_vdu["interfaces"]):
net_text = Ns._check_vld_information_of_interfaces(
interface, ns_preffix, vnf_preffix
)
if not net_text:
# Interface not connected to any vld
logger.error(
"Interface {} from vdu {} not connected to any vld".format(
iface_index, target_vdu["vdu-name"]
)
)
continue
extra_dict["depends_on"].append(net_text)
Ns._prepare_interface_port_security(interface)
net_item = Ns._create_net_item_of_interface(interface, net_text)
Ns._prepare_type_of_interface(
interface, tasks_by_target_record_id, net_text, net_item
)
if interface.get("ip-address"):
net_item["ip_address"] = interface["ip-address"]
if interface.get("mac-address"):
net_item["mac_address"] = interface["mac-address"]
net_list.append(net_item)
if interface.get("mgmt-vnf"):
extra_dict["mgmt_vnf_interface"] = iface_index
elif interface.get("mgmt-interface"):
extra_dict["mgmt_vdu_interface"] = iface_index
@staticmethod
def _prepare_vdu_ssh_keys(
target_vdu: dict, ro_nsr_public_key: dict, cloud_config: dict
) -> None:
"""Add ssh keys to cloud config.
Args:
target_vdu (dict): Details of VDU to be created
ro_nsr_public_key (dict): RO NSR public Key
cloud_config (dict): Cloud config details
"""
ssh_keys = []
if target_vdu.get("ssh-keys"):
ssh_keys += target_vdu.get("ssh-keys")
if target_vdu.get("ssh-access-required"):
ssh_keys.append(ro_nsr_public_key)
if ssh_keys:
cloud_config["key-pairs"] = ssh_keys
@staticmethod
def _select_persistent_root_disk(vsd: dict, vdu: dict) -> dict:
"""Selects the persistent root disk if exists.
Args:
vsd (dict): Virtual storage descriptors in VNFD
vdu (dict): VNF descriptor
Returns:
root_disk (dict): Selected persistent root disk
"""
if vsd.get("id") == vdu.get("virtual-storage-desc", [[]])[0]:
root_disk = vsd
if root_disk.get(
"type-of-storage"
) == "persistent-storage:persistent-storage" and root_disk.get(
"size-of-storage"
):
return root_disk
@staticmethod
def _add_persistent_root_disk_to_disk_list(
vnfd: dict, target_vdu: dict, persistent_root_disk: dict, disk_list: list
) -> None:
"""Find the persistent root disk and add to disk list.
Args:
vnfd (dict): VNF descriptor
target_vdu (dict): Details of VDU to be created
persistent_root_disk (dict): Details of persistent root disk
disk_list (list): Disks of VDU
"""
for vdu in vnfd.get("vdu", ()):
if vdu["name"] == target_vdu["vdu-name"]:
for vsd in vnfd.get("virtual-storage-desc", ()):
root_disk = Ns._select_persistent_root_disk(vsd, vdu)
if not root_disk:
continue
persistent_root_disk[vsd["id"]] = {
"image_id": vdu.get("sw-image-desc"),
"size": root_disk["size-of-storage"],
"keep": Ns.is_volume_keeping_required(root_disk),
}
disk_list.append(persistent_root_disk[vsd["id"]])
break
@staticmethod
def _add_persistent_ordinary_disks_to_disk_list(
target_vdu: dict,
persistent_root_disk: dict,
persistent_ordinary_disk: dict,
disk_list: list,
) -> None:
"""Fill the disk list by adding persistent ordinary disks.
Args:
target_vdu (dict): Details of VDU to be created
persistent_root_disk (dict): Details of persistent root disk
persistent_ordinary_disk (dict): Details of persistent ordinary disk
disk_list (list): Disks of VDU
"""
if target_vdu.get("virtual-storages"):
for disk in target_vdu["virtual-storages"]:
if (
disk.get("type-of-storage")
== "persistent-storage:persistent-storage"
and disk["id"] not in persistent_root_disk.keys()
):
persistent_ordinary_disk[disk["id"]] = {
"size": disk["size-of-storage"],
"keep": Ns.is_volume_keeping_required(disk),
}
disk_list.append(persistent_ordinary_disk[disk["id"]])
@staticmethod
def _prepare_vdu_affinity_group_list(
target_vdu: dict, extra_dict: dict, ns_preffix: str
) -> List[Dict[str, any]]:
"""Process affinity group details to prepare affinity group list.
Args:
target_vdu (dict): Details of VDU to be created
extra_dict (dict): Dictionary to be filled
ns_preffix (str): Prefix as string
Returns:
affinity_group_list (list): Affinity group details
"""
affinity_group_list = []
if target_vdu.get("affinity-or-anti-affinity-group-id"):
for affinity_group_id in target_vdu["affinity-or-anti-affinity-group-id"]:
affinity_group = {}
affinity_group_text = (
ns_preffix + ":affinity-or-anti-affinity-group." + affinity_group_id
)
if not isinstance(extra_dict.get("depends_on"), list):
raise NsException("Invalid extra_dict format.")
extra_dict["depends_on"].append(affinity_group_text)
affinity_group["affinity_group_id"] = "TASK-" + affinity_group_text
affinity_group_list.append(affinity_group)
return affinity_group_list
@staticmethod
def _process_vdu_params(
target_vdu: Dict[str, Any],
indata: Dict[str, Any],
vim_info: Dict[str, Any],
target_record_id: str,
**kwargs: Dict[str, Any],
) -> Dict[str, Any]:
"""Function to process VDU parameters.
Args:
target_vdu (Dict[str, Any]): [description]
indata (Dict[str, Any]): [description]
vim_info (Dict[str, Any]): [description]
target_record_id (str): [description]
Returns:
Dict[str, Any]: [description]
"""
vnfr_id = kwargs.get("vnfr_id")
nsr_id = kwargs.get("nsr_id")
vnfr = kwargs.get("vnfr")
vdu2cloud_init = kwargs.get("vdu2cloud_init")
tasks_by_target_record_id = kwargs.get("tasks_by_target_record_id")
logger = kwargs.get("logger")
db = kwargs.get("db")
fs = kwargs.get("fs")
ro_nsr_public_key = kwargs.get("ro_nsr_public_key")
vnf_preffix = "vnfrs:{}".format(vnfr_id)
ns_preffix = "nsrs:{}".format(nsr_id)
image_text = ns_preffix + ":image." + target_vdu["ns-image-id"]
flavor_text = ns_preffix + ":flavor." + target_vdu["ns-flavor-id"]
extra_dict = {"depends_on": [image_text, flavor_text]}
net_list = []
persistent_root_disk = {}
persistent_ordinary_disk = {}
vdu_instantiation_volumes_list = []
disk_list = []
vnfd_id = vnfr["vnfd-id"]
vnfd = db.get_one("vnfds", {"_id": vnfd_id})
# If the position info is provided for all the interfaces, it will be sorted
# according to position number ascendingly.
if all(
True if i.get("position") is not None else False
for i in target_vdu["interfaces"]
):
Ns._sort_vdu_interfaces(target_vdu)
# If the position info is provided for some interfaces but not all of them, the interfaces
# which has specific position numbers will be placed and others' positions will not be taken care.
else:
Ns._partially_locate_vdu_interfaces(target_vdu)
# If the position info is not provided for the interfaces, interfaces will be attached
# according to the order in the VNFD.
Ns._prepare_vdu_interfaces(
target_vdu,
extra_dict,
ns_preffix,
vnf_preffix,
logger,
tasks_by_target_record_id,
net_list,
)
# cloud config
cloud_config = Ns._prepare_vdu_cloud_init(target_vdu, vdu2cloud_init, db, fs)
# Prepare VDU ssh keys
Ns._prepare_vdu_ssh_keys(target_vdu, ro_nsr_public_key, cloud_config)
if target_vdu.get("additionalParams"):
vdu_instantiation_volumes_list = (
target_vdu.get("additionalParams").get("OSM").get("vdu_volumes")
)
if vdu_instantiation_volumes_list:
# Find the root volumes and add to the disk_list
persistent_root_disk = Ns.find_persistent_root_volumes(
vnfd, target_vdu, vdu_instantiation_volumes_list, disk_list
)
# Find the ordinary volumes which are not added to the persistent_root_disk
# and put them to the disk list
Ns.find_persistent_volumes(
persistent_root_disk,
target_vdu,
vdu_instantiation_volumes_list,
disk_list,
)
else:
# Vdu_instantiation_volumes_list is empty
# First get add the persistent root disks to disk_list
Ns._add_persistent_root_disk_to_disk_list(
vnfd, target_vdu, persistent_root_disk, disk_list
)
# Add the persistent non-root disks to disk_list
Ns._add_persistent_ordinary_disks_to_disk_list(
target_vdu, persistent_root_disk, persistent_ordinary_disk, disk_list
)
affinity_group_list = Ns._prepare_vdu_affinity_group_list(
target_vdu, extra_dict, ns_preffix
)
extra_dict["params"] = {
"name": "{}-{}-{}-{}".format(
indata["name"][:16],
vnfr["member-vnf-index-ref"][:16],
target_vdu["vdu-name"][:32],
target_vdu.get("count-index") or 0,
),
"description": target_vdu["vdu-name"],
"start": True,
"image_id": "TASK-" + image_text,
"flavor_id": "TASK-" + flavor_text,
"affinity_group_list": affinity_group_list,
"net_list": net_list,
"cloud_config": cloud_config or None,
"disk_list": disk_list,
"availability_zone_index": None, # TODO
"availability_zone_list": None, # TODO
}
return extra_dict
@staticmethod
def _process_affinity_group_params(
target_affinity_group: Dict[str, Any],
indata: Dict[str, Any],
vim_info: Dict[str, Any],
target_record_id: str,
**kwargs: Dict[str, Any],
) -> Dict[str, Any]:
"""Get affinity or anti-affinity group parameters.
Args:
target_affinity_group (Dict[str, Any]): [description]
indata (Dict[str, Any]): [description]
vim_info (Dict[str, Any]): [description]
target_record_id (str): [description]
Returns:
Dict[str, Any]: [description]
"""
extra_dict = {}
affinity_group_data = {
"name": target_affinity_group["name"],
"type": target_affinity_group["type"],
"scope": target_affinity_group["scope"],
}
if target_affinity_group.get("vim-affinity-group-id"):
affinity_group_data["vim-affinity-group-id"] = target_affinity_group[
"vim-affinity-group-id"
]
extra_dict["params"] = {
"affinity_group_data": affinity_group_data,
}
return extra_dict
@staticmethod
def _process_recreate_vdu_params(
existing_vdu: Dict[str, Any],
db_nsr: Dict[str, Any],
vim_info: Dict[str, Any],
target_record_id: str,
target_id: str,
**kwargs: Dict[str, Any],
) -> Dict[str, Any]:
"""Function to process VDU parameters to recreate.
Args:
existing_vdu (Dict[str, Any]): [description]
db_nsr (Dict[str, Any]): [description]
vim_info (Dict[str, Any]): [description]
target_record_id (str): [description]
target_id (str): [description]
Returns:
Dict[str, Any]: [description]
"""
vnfr = kwargs.get("vnfr")
vdu2cloud_init = kwargs.get("vdu2cloud_init")
# logger = kwargs.get("logger")
db = kwargs.get("db")
fs = kwargs.get("fs")
ro_nsr_public_key = kwargs.get("ro_nsr_public_key")
extra_dict = {}
net_list = []
vim_details = {}
vim_details_text = existing_vdu["vim_info"][target_id].get("vim_details", None)
if vim_details_text:
vim_details = yaml.safe_load(f"{vim_details_text}")
for iface_index, interface in enumerate(existing_vdu["interfaces"]):
if "port-security-enabled" in interface:
interface["port_security"] = interface.pop("port-security-enabled")
if "port-security-disable-strategy" in interface:
interface["port_security_disable_strategy"] = interface.pop(
"port-security-disable-strategy"
)
net_item = {
x: v
for x, v in interface.items()
if x
in (
"name",
"vpci",
"port_security",
"port_security_disable_strategy",
"floating_ip",
)
}
existing_ifaces = existing_vdu["vim_info"][target_id].get(
"interfaces_backup", []
)
net_id = next(
(
i["vim_net_id"]
for i in existing_ifaces
if i["ip_address"] == interface["ip-address"]
),
None,
)
net_item["net_id"] = net_id
net_item["type"] = "virtual"
# TODO mac_address: used for SR-IOV ifaces #TODO for other types
# TODO floating_ip: True/False (or it can be None)
if interface.get("type") in ("SR-IOV", "PCI-PASSTHROUGH"):
net_item["use"] = "data"
net_item["model"] = interface["type"]
net_item["type"] = interface["type"]
elif (
interface.get("type") == "OM-MGMT"
or interface.get("mgmt-interface")
or interface.get("mgmt-vnf")
):
net_item["use"] = "mgmt"
else:
# if interface.get("type") in ("VIRTIO", "E1000", "PARAVIRT"):
net_item["use"] = "bridge"
net_item["model"] = interface.get("type")
if interface.get("ip-address"):
net_item["ip_address"] = interface["ip-address"]
if interface.get("mac-address"):
net_item["mac_address"] = interface["mac-address"]
net_list.append(net_item)
if interface.get("mgmt-vnf"):
extra_dict["mgmt_vnf_interface"] = iface_index
elif interface.get("mgmt-interface"):
extra_dict["mgmt_vdu_interface"] = iface_index
# cloud config
cloud_config = {}
if existing_vdu.get("cloud-init"):
if existing_vdu["cloud-init"] not in vdu2cloud_init:
vdu2cloud_init[existing_vdu["cloud-init"]] = Ns._get_cloud_init(
db=db,
fs=fs,
location=existing_vdu["cloud-init"],
)
cloud_content_ = vdu2cloud_init[existing_vdu["cloud-init"]]
cloud_config["user-data"] = Ns._parse_jinja2(
cloud_init_content=cloud_content_,
params=existing_vdu.get("additionalParams"),
context=existing_vdu["cloud-init"],
)
if existing_vdu.get("boot-data-drive"):
cloud_config["boot-data-drive"] = existing_vdu.get("boot-data-drive")
ssh_keys = []
if existing_vdu.get("ssh-keys"):
ssh_keys += existing_vdu.get("ssh-keys")
if existing_vdu.get("ssh-access-required"):
ssh_keys.append(ro_nsr_public_key)
if ssh_keys:
cloud_config["key-pairs"] = ssh_keys
disk_list = []
for vol_id in vim_details.get("os-extended-volumes:volumes_attached", []):
disk_list.append({"vim_id": vol_id["id"]})
affinity_group_list = []
if existing_vdu.get("affinity-or-anti-affinity-group-id"):
affinity_group = {}
for affinity_group_id in existing_vdu["affinity-or-anti-affinity-group-id"]:
for group in db_nsr.get("affinity-or-anti-affinity-group"):
if (
group["id"] == affinity_group_id
and group["vim_info"][target_id].get("vim_id", None) is not None
):
affinity_group["affinity_group_id"] = group["vim_info"][
target_id
].get("vim_id", None)
affinity_group_list.append(affinity_group)
extra_dict["params"] = {
"name": "{}-{}-{}-{}".format(
db_nsr["name"][:16],
vnfr["member-vnf-index-ref"][:16],
existing_vdu["vdu-name"][:32],
existing_vdu.get("count-index") or 0,
),
"description": existing_vdu["vdu-name"],
"start": True,
"image_id": vim_details["image"]["id"],
"flavor_id": vim_details["flavor"]["id"],
"affinity_group_list": affinity_group_list,
"net_list": net_list,
"cloud_config": cloud_config or None,
"disk_list": disk_list,
"availability_zone_index": None, # TODO
"availability_zone_list": None, # TODO
}
return extra_dict
def calculate_diff_items(
self,
indata,
db_nsr,
db_ro_nsr,
db_nsr_update,
item,
tasks_by_target_record_id,
action_id,
nsr_id,
task_index,
vnfr_id=None,
vnfr=None,
):
"""Function that returns the incremental changes (creation, deletion)
related to a specific item `item` to be done. This function should be
called for NS instantiation, NS termination, NS update to add a new VNF
or a new VLD, remove a VNF or VLD, etc.
Item can be `net`, `flavor`, `image` or `vdu`.
It takes a list of target items from indata (which came from the REST API)
and compares with the existing items from db_ro_nsr, identifying the
incremental changes to be done. During the comparison, it calls the method
`process_params` (which was passed as parameter, and is particular for each
`item`)
Args:
indata (Dict[str, Any]): deployment info
db_nsr: NSR record from DB
db_ro_nsr (Dict[str, Any]): record from "ro_nsrs"
db_nsr_update (Dict[str, Any]): NSR info to update in DB
item (str): element to process (net, vdu...)
tasks_by_target_record_id (Dict[str, Any]):
[<target_record_id>, <task>]
action_id (str): action id
nsr_id (str): NSR id
task_index (number): task index to add to task name
vnfr_id (str): VNFR id
vnfr (Dict[str, Any]): VNFR info
Returns:
List: list with the incremental changes (deletes, creates) for each item
number: current task index
"""
diff_items = []
db_path = ""
db_record = ""
target_list = []
existing_list = []
process_params = None
vdu2cloud_init = indata.get("cloud_init_content") or {}
ro_nsr_public_key = db_ro_nsr["public_key"]
# According to the type of item, the path, the target_list,
# the existing_list and the method to process params are set
db_path = self.db_path_map[item]
process_params = self.process_params_function_map[item]
if item in ("net", "vdu"):
# This case is specific for the NS VLD (not applied to VDU)
if vnfr is None:
db_record = "nsrs:{}:{}".format(nsr_id, db_path)
target_list = indata.get("ns", []).get(db_path, [])
existing_list = db_nsr.get(db_path, [])
# This case is common for VNF VLDs and VNF VDUs
else:
db_record = "vnfrs:{}:{}".format(vnfr_id, db_path)
target_vnf = next(
(vnf for vnf in indata.get("vnf", ()) if vnf["_id"] == vnfr_id),
None,
)
target_list = target_vnf.get(db_path, []) if target_vnf else []
existing_list = vnfr.get(db_path, [])
elif item in ("image", "flavor", "affinity-or-anti-affinity-group"):
db_record = "nsrs:{}:{}".format(nsr_id, db_path)
target_list = indata.get(item, [])
existing_list = db_nsr.get(item, [])
else:
raise NsException("Item not supported: {}", item)
# ensure all the target_list elements has an "id". If not assign the index as id
if target_list is None:
target_list = []
for target_index, tl in enumerate(target_list):
if tl and not tl.get("id"):
tl["id"] = str(target_index)
# step 1 items (networks,vdus,...) to be deleted/updated
for item_index, existing_item in enumerate(existing_list):
target_item = next(
(t for t in target_list if t["id"] == existing_item["id"]),
None,
)
for target_vim, existing_viminfo in existing_item.get(
"vim_info", {}
).items():
if existing_viminfo is None:
continue
if target_item:
target_viminfo = target_item.get("vim_info", {}).get(target_vim)
else:
target_viminfo = None
if target_viminfo is None:
# must be deleted
self._assign_vim(target_vim)
target_record_id = "{}.{}".format(db_record, existing_item["id"])
item_ = item
if target_vim.startswith("sdn") or target_vim.startswith("wim"):
# item must be sdn-net instead of net if target_vim is a sdn
item_ = "sdn_net"
target_record_id += ".sdn"
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
diff_items.append(
{
"deployment_info": deployment_info,
"target_id": target_vim,
"item": item_,
"action": "DELETE",
"target_record": f"{db_record}.{item_index}.vim_info.{target_vim}",
"target_record_id": target_record_id,
}
)
task_index += 1
# step 2 items (networks,vdus,...) to be created
for target_item in target_list:
item_index = -1
for item_index, existing_item in enumerate(existing_list):
if existing_item["id"] == target_item["id"]:
break
else:
item_index += 1
db_nsr_update[db_path + ".{}".format(item_index)] = target_item
existing_list.append(target_item)
existing_item = None
for target_vim, target_viminfo in target_item.get("vim_info", {}).items():
existing_viminfo = None
if existing_item:
existing_viminfo = existing_item.get("vim_info", {}).get(target_vim)
if existing_viminfo is not None:
continue
target_record_id = "{}.{}".format(db_record, target_item["id"])
item_ = item
if target_vim.startswith("sdn") or target_vim.startswith("wim"):
# item must be sdn-net instead of net if target_vim is a sdn
item_ = "sdn_net"
target_record_id += ".sdn"
kwargs = {}
self.logger.debug(
"ns.calculate_diff_items target_item={}".format(target_item)
)
if process_params == Ns._process_flavor_params:
kwargs.update(
{
"db": self.db,
}
)
self.logger.debug(
"calculate_diff_items for flavor kwargs={}".format(kwargs)
)
if process_params == Ns._process_vdu_params:
self.logger.debug("calculate_diff_items self.fs={}".format(self.fs))
kwargs.update(
{
"vnfr_id": vnfr_id,
"nsr_id": nsr_id,
"vnfr": vnfr,
"vdu2cloud_init": vdu2cloud_init,
"tasks_by_target_record_id": tasks_by_target_record_id,
"logger": self.logger,
"db": self.db,
"fs": self.fs,
"ro_nsr_public_key": ro_nsr_public_key,
}
)
self.logger.debug("calculate_diff_items kwargs={}".format(kwargs))
extra_dict = process_params(
target_item,
indata,
target_viminfo,
target_record_id,
**kwargs,
)
self._assign_vim(target_vim)
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
new_item = {
"deployment_info": deployment_info,
"target_id": target_vim,
"item": item_,
"action": "CREATE",
"target_record": f"{db_record}.{item_index}.vim_info.{target_vim}",
"target_record_id": target_record_id,
"extra_dict": extra_dict,
"common_id": target_item.get("common_id", None),
}
diff_items.append(new_item)
tasks_by_target_record_id[target_record_id] = new_item
task_index += 1
db_nsr_update[db_path + ".{}".format(item_index)] = target_item
return diff_items, task_index
def calculate_all_differences_to_deploy(
self,
indata,
nsr_id,
db_nsr,
db_vnfrs,
db_ro_nsr,
db_nsr_update,
db_vnfrs_update,
action_id,
tasks_by_target_record_id,
):
"""This method calculates the ordered list of items (`changes_list`)
to be created and deleted.
Args:
indata (Dict[str, Any]): deployment info
nsr_id (str): NSR id
db_nsr: NSR record from DB
db_vnfrs: VNFRS record from DB
db_ro_nsr (Dict[str, Any]): record from "ro_nsrs"
db_nsr_update (Dict[str, Any]): NSR info to update in DB
db_vnfrs_update (Dict[str, Any]): VNFRS info to update in DB
action_id (str): action id
tasks_by_target_record_id (Dict[str, Any]):
[<target_record_id>, <task>]
Returns:
List: ordered list of items to be created and deleted.
"""
task_index = 0
# set list with diffs:
changes_list = []
# NS vld, image and flavor
for item in ["net", "image", "flavor", "affinity-or-anti-affinity-group"]:
self.logger.debug("process NS={} {}".format(nsr_id, item))
diff_items, task_index = self.calculate_diff_items(
indata=indata,
db_nsr=db_nsr,
db_ro_nsr=db_ro_nsr,
db_nsr_update=db_nsr_update,
item=item,
tasks_by_target_record_id=tasks_by_target_record_id,
action_id=action_id,
nsr_id=nsr_id,
task_index=task_index,
vnfr_id=None,
)
changes_list += diff_items
# VNF vlds and vdus
for vnfr_id, vnfr in db_vnfrs.items():
# vnfr_id need to be set as global variable for among others nested method _process_vdu_params
for item in ["net", "vdu"]:
self.logger.debug("process VNF={} {}".format(vnfr_id, item))
diff_items, task_index = self.calculate_diff_items(
indata=indata,
db_nsr=db_nsr,
db_ro_nsr=db_ro_nsr,
db_nsr_update=db_vnfrs_update[vnfr["_id"]],
item=item,
tasks_by_target_record_id=tasks_by_target_record_id,
action_id=action_id,
nsr_id=nsr_id,
task_index=task_index,
vnfr_id=vnfr_id,
vnfr=vnfr,
)
changes_list += diff_items
return changes_list
def define_all_tasks(
self,
changes_list,
db_new_tasks,
tasks_by_target_record_id,
):
"""Function to create all the task structures obtanied from
the method calculate_all_differences_to_deploy
Args:
changes_list (List): ordered list of items to be created or deleted
db_new_tasks (List): tasks list to be created
action_id (str): action id
tasks_by_target_record_id (Dict[str, Any]):
[<target_record_id>, <task>]
"""
for change in changes_list:
task = Ns._create_task(
deployment_info=change["deployment_info"],
target_id=change["target_id"],
item=change["item"],
action=change["action"],
target_record=change["target_record"],
target_record_id=change["target_record_id"],
extra_dict=change.get("extra_dict", None),
)
self.logger.debug("ns.define_all_tasks task={}".format(task))
tasks_by_target_record_id[change["target_record_id"]] = task
db_new_tasks.append(task)
if change.get("common_id"):
task["common_id"] = change["common_id"]
def upload_all_tasks(
self,
db_new_tasks,
now,
):
"""Function to save all tasks in the common DB
Args:
db_new_tasks (List): tasks list to be created
now (time): current time
"""
nb_ro_tasks = 0 # for logging
for db_task in db_new_tasks:
target_id = db_task.pop("target_id")
common_id = db_task.get("common_id")
# Do not chek tasks with vim_status DELETED
# because in manual heealing there are two tasks for the same vdur:
# one with vim_status deleted and the other one with the actual VM status.
if common_id:
if self.db.set_one(
"ro_tasks",
q_filter={
"target_id": target_id,
"tasks.common_id": common_id,
"vim_info.vim_status.ne": "DELETED",
},
update_dict={"to_check_at": now, "modified_at": now},
push={"tasks": db_task},
fail_on_empty=False,
):
continue
if not self.db.set_one(
"ro_tasks",
q_filter={
"target_id": target_id,
"tasks.target_record": db_task["target_record"],
"vim_info.vim_status.ne": "DELETED",
},
update_dict={"to_check_at": now, "modified_at": now},
push={"tasks": db_task},
fail_on_empty=False,
):
# Create a ro_task
self.logger.debug("Updating database, Creating ro_tasks")
db_ro_task = Ns._create_ro_task(target_id, db_task)
nb_ro_tasks += 1
self.db.create("ro_tasks", db_ro_task)
self.logger.debug(
"Created {} ro_tasks; {} tasks - db_new_tasks={}".format(
nb_ro_tasks, len(db_new_tasks), db_new_tasks
)
)
def upload_recreate_tasks(
self,
db_new_tasks,
now,
):
"""Function to save recreate tasks in the common DB
Args:
db_new_tasks (List): tasks list to be created
now (time): current time
"""
nb_ro_tasks = 0 # for logging
for db_task in db_new_tasks:
target_id = db_task.pop("target_id")
self.logger.debug("target_id={} db_task={}".format(target_id, db_task))
action = db_task.get("action", None)
# Create a ro_task
self.logger.debug("Updating database, Creating ro_tasks")
db_ro_task = Ns._create_ro_task(target_id, db_task)
# If DELETE task: the associated created items should be removed
# (except persistent volumes):
if action == "DELETE":
db_ro_task["vim_info"]["created"] = True
db_ro_task["vim_info"]["created_items"] = db_task.get(
"created_items", {}
)
db_ro_task["vim_info"]["volumes_to_hold"] = db_task.get(
"volumes_to_hold", []
)
db_ro_task["vim_info"]["vim_id"] = db_task.get("vim_id", None)
nb_ro_tasks += 1
self.logger.debug("upload_all_tasks db_ro_task={}".format(db_ro_task))
self.db.create("ro_tasks", db_ro_task)
self.logger.debug(
"Created {} ro_tasks; {} tasks - db_new_tasks={}".format(
nb_ro_tasks, len(db_new_tasks), db_new_tasks
)
)
def _prepare_created_items_for_healing(
self,
nsr_id,
target_record,
):
created_items = {}
# Get created_items from ro_task
ro_tasks = self.db.get_list("ro_tasks", {"tasks.nsr_id": nsr_id})
for ro_task in ro_tasks:
for task in ro_task["tasks"]:
if (
task["target_record"] == target_record
and task["action"] == "CREATE"
and ro_task["vim_info"]["created_items"]
):
created_items = ro_task["vim_info"]["created_items"]
break
return created_items
def _prepare_persistent_volumes_for_healing(
self,
target_id,
existing_vdu,
):
# The associated volumes of the VM shouldn't be removed
volumes_list = []
vim_details = {}
vim_details_text = existing_vdu["vim_info"][target_id].get("vim_details", None)
if vim_details_text:
vim_details = yaml.safe_load(f"{vim_details_text}")
for vol_id in vim_details.get("os-extended-volumes:volumes_attached", []):
volumes_list.append(vol_id["id"])
return volumes_list
def prepare_changes_to_recreate(
self,
indata,
nsr_id,
db_nsr,
db_vnfrs,
db_ro_nsr,
action_id,
tasks_by_target_record_id,
):
"""This method will obtain an ordered list of items (`changes_list`)
to be created and deleted to meet the recreate request.
"""
self.logger.debug(
"ns.prepare_changes_to_recreate nsr_id={} indata={}".format(nsr_id, indata)
)
task_index = 0
# set list with diffs:
changes_list = []
db_path = self.db_path_map["vdu"]
target_list = indata.get("healVnfData", {})
vdu2cloud_init = indata.get("cloud_init_content") or {}
ro_nsr_public_key = db_ro_nsr["public_key"]
# Check each VNF of the target
for target_vnf in target_list:
# Find this VNF in the list from DB
vnfr_id = target_vnf.get("vnfInstanceId", None)
if vnfr_id:
existing_vnf = db_vnfrs.get(vnfr_id)
db_record = "vnfrs:{}:{}".format(vnfr_id, db_path)
# vim_account_id = existing_vnf.get("vim-account-id", "")
# Check each VDU of this VNF
for target_vdu in target_vnf["additionalParams"].get("vdu", None):
vdu_name = target_vdu.get("vdu-id", None)
# For multi instance VDU count-index is mandatory
# For single session VDU count-indes is 0
count_index = target_vdu.get("count-index", 0)
item_index = 0
existing_instance = None
for instance in existing_vnf.get("vdur", None):
if (
instance["vdu-name"] == vdu_name
and instance["count-index"] == count_index
):
existing_instance = instance
break
else:
item_index += 1
target_record_id = "{}.{}".format(db_record, existing_instance["id"])
# The target VIM is the one already existing in DB to recreate
for target_vim, target_viminfo in existing_instance.get(
"vim_info", {}
).items():
# step 1 vdu to be deleted
self._assign_vim(target_vim)
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
target_record = f"{db_record}.{item_index}.vim_info.{target_vim}"
created_items = self._prepare_created_items_for_healing(
nsr_id, target_record
)
volumes_to_hold = self._prepare_persistent_volumes_for_healing(
target_vim, existing_instance
)
# Specific extra params for recreate tasks:
extra_dict = {
"created_items": created_items,
"vim_id": existing_instance["vim-id"],
"volumes_to_hold": volumes_to_hold,
}
changes_list.append(
{
"deployment_info": deployment_info,
"target_id": target_vim,
"item": "vdu",
"action": "DELETE",
"target_record": target_record,
"target_record_id": target_record_id,
"extra_dict": extra_dict,
}
)
delete_task_id = f"{action_id}:{task_index}"
task_index += 1
# step 2 vdu to be created
kwargs = {}
kwargs.update(
{
"vnfr_id": vnfr_id,
"nsr_id": nsr_id,
"vnfr": existing_vnf,
"vdu2cloud_init": vdu2cloud_init,
"tasks_by_target_record_id": tasks_by_target_record_id,
"logger": self.logger,
"db": self.db,
"fs": self.fs,
"ro_nsr_public_key": ro_nsr_public_key,
}
)
extra_dict = self._process_recreate_vdu_params(
existing_instance,
db_nsr,
target_viminfo,
target_record_id,
target_vim,
**kwargs,
)
# The CREATE task depens on the DELETE task
extra_dict["depends_on"] = [delete_task_id]
# Add volumes created from created_items if any
# Ports should be deleted with delete task and automatically created with create task
volumes = {}
for k, v in created_items.items():
try:
k_item, _, k_id = k.partition(":")
if k_item == "volume":
volumes[k] = v
except Exception as e:
self.logger.error(
"Error evaluating created item {}: {}".format(k, e)
)
extra_dict["previous_created_volumes"] = volumes
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
self._assign_vim(target_vim)
new_item = {
"deployment_info": deployment_info,
"target_id": target_vim,
"item": "vdu",
"action": "CREATE",
"target_record": target_record,
"target_record_id": target_record_id,
"extra_dict": extra_dict,
}
changes_list.append(new_item)
tasks_by_target_record_id[target_record_id] = new_item
task_index += 1
return changes_list
def recreate(self, session, indata, version, nsr_id, *args, **kwargs):
self.logger.debug("ns.recreate nsr_id={} indata={}".format(nsr_id, indata))
# TODO: validate_input(indata, recreate_schema)
action_id = indata.get("action_id", str(uuid4()))
# get current deployment
db_vnfrs = {} # vnf's info indexed by _id
step = ""
logging_text = "Recreate nsr_id={} action_id={} indata={}".format(
nsr_id, action_id, indata
)
self.logger.debug(logging_text + "Enter")
try:
step = "Getting ns and vnfr record from db"
db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
db_new_tasks = []
tasks_by_target_record_id = {}
# read from db: vnf's of this ns
step = "Getting vnfrs from db"
db_vnfrs_list = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
self.logger.debug("ns.recreate: db_vnfrs_list={}".format(db_vnfrs_list))
if not db_vnfrs_list:
raise NsException("Cannot obtain associated VNF for ns")
for vnfr in db_vnfrs_list:
db_vnfrs[vnfr["_id"]] = vnfr
now = time()
db_ro_nsr = self.db.get_one("ro_nsrs", {"_id": nsr_id}, fail_on_empty=False)
self.logger.debug("ns.recreate: db_ro_nsr={}".format(db_ro_nsr))
if not db_ro_nsr:
db_ro_nsr = self._create_db_ro_nsrs(nsr_id, now)
with self.write_lock:
# NS
step = "process NS elements"
changes_list = self.prepare_changes_to_recreate(
indata=indata,
nsr_id=nsr_id,
db_nsr=db_nsr,
db_vnfrs=db_vnfrs,
db_ro_nsr=db_ro_nsr,
action_id=action_id,
tasks_by_target_record_id=tasks_by_target_record_id,
)
self.define_all_tasks(
changes_list=changes_list,
db_new_tasks=db_new_tasks,
tasks_by_target_record_id=tasks_by_target_record_id,
)
# Delete all ro_tasks registered for the targets vdurs (target_record)
# If task of type CREATE exist then vim will try to get info form deleted VMs.
# So remove all task related to target record.
ro_tasks = self.db.get_list("ro_tasks", {"tasks.nsr_id": nsr_id})
for change in changes_list:
for ro_task in ro_tasks:
for task in ro_task["tasks"]:
if task["target_record"] == change["target_record"]:
self.db.del_one(
"ro_tasks",
q_filter={
"_id": ro_task["_id"],
"modified_at": ro_task["modified_at"],
},
fail_on_empty=False,
)
step = "Updating database, Appending tasks to ro_tasks"
self.upload_recreate_tasks(
db_new_tasks=db_new_tasks,
now=now,
)
self.logger.debug(
logging_text + "Exit. Created {} tasks".format(len(db_new_tasks))
)
return (
{"status": "ok", "nsr_id": nsr_id, "action_id": action_id},
action_id,
True,
)
except Exception as e:
if isinstance(e, (DbException, NsException)):
self.logger.error(
logging_text + "Exit Exception while '{}': {}".format(step, e)
)
else:
e = traceback_format_exc()
self.logger.critical(
logging_text + "Exit Exception while '{}': {}".format(step, e),
exc_info=True,
)
raise NsException(e)
def deploy(self, session, indata, version, nsr_id, *args, **kwargs):
self.logger.debug("ns.deploy nsr_id={} indata={}".format(nsr_id, indata))
validate_input(indata, deploy_schema)
action_id = indata.get("action_id", str(uuid4()))
task_index = 0
# get current deployment
db_nsr_update = {} # update operation on nsrs
db_vnfrs_update = {}
db_vnfrs = {} # vnf's info indexed by _id
step = ""
logging_text = "Task deploy nsr_id={} action_id={} ".format(nsr_id, action_id)
self.logger.debug(logging_text + "Enter")
try:
step = "Getting ns and vnfr record from db"
db_nsr = self.db.get_one("nsrs", {"_id": nsr_id})
self.logger.debug("ns.deploy: db_nsr={}".format(db_nsr))
db_new_tasks = []
tasks_by_target_record_id = {}
# read from db: vnf's of this ns
step = "Getting vnfrs from db"
db_vnfrs_list = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
if not db_vnfrs_list:
raise NsException("Cannot obtain associated VNF for ns")
for vnfr in db_vnfrs_list:
db_vnfrs[vnfr["_id"]] = vnfr
db_vnfrs_update[vnfr["_id"]] = {}
self.logger.debug("ns.deploy db_vnfrs={}".format(db_vnfrs))
now = time()
db_ro_nsr = self.db.get_one("ro_nsrs", {"_id": nsr_id}, fail_on_empty=False)
if not db_ro_nsr:
db_ro_nsr = self._create_db_ro_nsrs(nsr_id, now)
# check that action_id is not in the list of actions. Suffixed with :index
if action_id in db_ro_nsr["actions"]:
index = 1
while True:
new_action_id = "{}:{}".format(action_id, index)
if new_action_id not in db_ro_nsr["actions"]:
action_id = new_action_id
self.logger.debug(
logging_text
+ "Changing action_id in use to {}".format(action_id)
)
break
index += 1
def _process_action(indata):
nonlocal db_new_tasks
nonlocal action_id
nonlocal nsr_id
nonlocal task_index
nonlocal db_vnfrs
nonlocal db_ro_nsr
if indata["action"]["action"] == "inject_ssh_key":
key = indata["action"].get("key")
user = indata["action"].get("user")
password = indata["action"].get("password")
for vnf in indata.get("vnf", ()):
if vnf["_id"] not in db_vnfrs:
raise NsException("Invalid vnf={}".format(vnf["_id"]))
db_vnfr = db_vnfrs[vnf["_id"]]
for target_vdu in vnf.get("vdur", ()):
vdu_index, vdur = next(
(
i_v
for i_v in enumerate(db_vnfr["vdur"])
if i_v[1]["id"] == target_vdu["id"]
),
(None, None),
)
if not vdur:
raise NsException(
"Invalid vdu vnf={}.{}".format(
vnf["_id"], target_vdu["id"]
)
)
target_vim, vim_info = next(
k_v for k_v in vdur["vim_info"].items()
)
self._assign_vim(target_vim)
target_record = "vnfrs:{}:vdur.{}.ssh_keys".format(
vnf["_id"], vdu_index
)
extra_dict = {
"depends_on": [
"vnfrs:{}:vdur.{}".format(vnf["_id"], vdur["id"])
],
"params": {
"ip_address": vdur.get("ip-address"),
"user": user,
"key": key,
"password": password,
"private_key": db_ro_nsr["private_key"],
"salt": db_ro_nsr["_id"],
"schema_version": db_ro_nsr["_admin"][
"schema_version"
],
},
}
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
task = Ns._create_task(
deployment_info=deployment_info,
target_id=target_vim,
item="vdu",
action="EXEC",
target_record=target_record,
target_record_id=None,
extra_dict=extra_dict,
)
task_index = deployment_info.get("task_index")
db_new_tasks.append(task)
with self.write_lock:
if indata.get("action"):
_process_action(indata)
else:
# compute network differences
# NS
step = "process NS elements"
changes_list = self.calculate_all_differences_to_deploy(
indata=indata,
nsr_id=nsr_id,
db_nsr=db_nsr,
db_vnfrs=db_vnfrs,
db_ro_nsr=db_ro_nsr,
db_nsr_update=db_nsr_update,
db_vnfrs_update=db_vnfrs_update,
action_id=action_id,
tasks_by_target_record_id=tasks_by_target_record_id,
)
self.define_all_tasks(
changes_list=changes_list,
db_new_tasks=db_new_tasks,
tasks_by_target_record_id=tasks_by_target_record_id,
)
step = "Updating database, Appending tasks to ro_tasks"
self.upload_all_tasks(
db_new_tasks=db_new_tasks,
now=now,
)
step = "Updating database, nsrs"
if db_nsr_update:
self.db.set_one("nsrs", {"_id": nsr_id}, db_nsr_update)
for vnfr_id, db_vnfr_update in db_vnfrs_update.items():
if db_vnfr_update:
step = "Updating database, vnfrs={}".format(vnfr_id)
self.db.set_one("vnfrs", {"_id": vnfr_id}, db_vnfr_update)
self.logger.debug(
logging_text + "Exit. Created {} tasks".format(len(db_new_tasks))
)
return (
{"status": "ok", "nsr_id": nsr_id, "action_id": action_id},
action_id,
True,
)
except Exception as e:
if isinstance(e, (DbException, NsException)):
self.logger.error(
logging_text + "Exit Exception while '{}': {}".format(step, e)
)
else:
e = traceback_format_exc()
self.logger.critical(
logging_text + "Exit Exception while '{}': {}".format(step, e),
exc_info=True,
)
raise NsException(e)
def delete(self, session, indata, version, nsr_id, *args, **kwargs):
self.logger.debug("ns.delete version={} nsr_id={}".format(version, nsr_id))
# self.db.del_list({"_id": ro_task["_id"], "tasks.nsr_id.ne": nsr_id})
with self.write_lock:
try:
NsWorker.delete_db_tasks(self.db, nsr_id, None)
except NsWorkerException as e:
raise NsException(e)
return None, None, True
def status(self, session, indata, version, nsr_id, action_id, *args, **kwargs):
self.logger.debug(
"ns.status version={} nsr_id={}, action_id={} indata={}".format(
version, nsr_id, action_id, indata
)
)
task_list = []
done = 0
total = 0
ro_tasks = self.db.get_list("ro_tasks", {"tasks.action_id": action_id})
global_status = "DONE"
details = []
for ro_task in ro_tasks:
for task in ro_task["tasks"]:
if task and task["action_id"] == action_id:
task_list.append(task)
total += 1
if task["status"] == "FAILED":
global_status = "FAILED"
error_text = "Error at {} {}: {}".format(
task["action"].lower(),
task["item"],
ro_task["vim_info"].get("vim_message") or "unknown",
)
details.append(error_text)
elif task["status"] in ("SCHEDULED", "BUILD"):
if global_status != "FAILED":
global_status = "BUILD"
else:
done += 1
return_data = {
"status": global_status,
"details": ". ".join(details)
if details
else "progress {}/{}".format(done, total),
"nsr_id": nsr_id,
"action_id": action_id,
"tasks": task_list,
}
return return_data, None, True
def recreate_status(
self, session, indata, version, nsr_id, action_id, *args, **kwargs
):
return self.status(session, indata, version, nsr_id, action_id, *args, **kwargs)
def cancel(self, session, indata, version, nsr_id, action_id, *args, **kwargs):
print(
"ns.cancel session={} indata={} version={} nsr_id={}, action_id={}".format(
session, indata, version, nsr_id, action_id
)
)
return None, None, True
def rebuild_start_stop_task(
self,
vdu_id,
vnf_id,
vdu_index,
action_id,
nsr_id,
task_index,
target_vim,
extra_dict,
):
self._assign_vim(target_vim)
target_record = "vnfrs:{}:vdur.{}".format(vnf_id, vdu_index)
target_record_id = "vnfrs:{}:vdur.{}".format(vnf_id, vdu_id)
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
task = Ns._create_task(
deployment_info=deployment_info,
target_id=target_vim,
item="update",
action="EXEC",
target_record=target_record,
target_record_id=target_record_id,
extra_dict=extra_dict,
)
return task
def rebuild_start_stop(
self, session, action_dict, version, nsr_id, *args, **kwargs
):
task_index = 0
extra_dict = {}
now = time()
action_id = action_dict.get("action_id", str(uuid4()))
step = ""
logging_text = "Task deploy nsr_id={} action_id={} ".format(nsr_id, action_id)
self.logger.debug(logging_text + "Enter")
action = list(action_dict.keys())[0]
task_dict = action_dict.get(action)
vim_vm_id = action_dict.get(action).get("vim_vm_id")
if action_dict.get("stop"):
action = "shutoff"
db_new_tasks = []
try:
step = "lock the operation & do task creation"
with self.write_lock:
extra_dict["params"] = {
"vim_vm_id": vim_vm_id,
"action": action,
}
task = self.rebuild_start_stop_task(
task_dict["vdu_id"],
task_dict["vnf_id"],
task_dict["vdu_index"],
action_id,
nsr_id,
task_index,
task_dict["target_vim"],
extra_dict,
)
db_new_tasks.append(task)
step = "upload Task to db"
self.upload_all_tasks(
db_new_tasks=db_new_tasks,
now=now,
)
self.logger.debug(
logging_text + "Exit. Created {} tasks".format(len(db_new_tasks))
)
return (
{"status": "ok", "nsr_id": nsr_id, "action_id": action_id},
action_id,
True,
)
except Exception as e:
if isinstance(e, (DbException, NsException)):
self.logger.error(
logging_text + "Exit Exception while '{}': {}".format(step, e)
)
else:
e = traceback_format_exc()
self.logger.critical(
logging_text + "Exit Exception while '{}': {}".format(step, e),
exc_info=True,
)
raise NsException(e)
def get_deploy(self, session, indata, version, nsr_id, action_id, *args, **kwargs):
nsrs = self.db.get_list("nsrs", {})
return_data = []
for ns in nsrs:
return_data.append({"_id": ns["_id"], "name": ns["name"]})
return return_data, None, True
def get_actions(self, session, indata, version, nsr_id, action_id, *args, **kwargs):
ro_tasks = self.db.get_list("ro_tasks", {"tasks.nsr_id": nsr_id})
return_data = []
for ro_task in ro_tasks:
for task in ro_task["tasks"]:
if task["action_id"] not in return_data:
return_data.append(task["action_id"])
return return_data, None, True
def migrate_task(
self, vdu, vnf, vdu_index, action_id, nsr_id, task_index, extra_dict
):
target_vim, vim_info = next(k_v for k_v in vdu["vim_info"].items())
self._assign_vim(target_vim)
target_record = "vnfrs:{}:vdur.{}".format(vnf["_id"], vdu_index)
target_record_id = "vnfrs:{}:vdur.{}".format(vnf["_id"], vdu["id"])
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
task = Ns._create_task(
deployment_info=deployment_info,
target_id=target_vim,
item="migrate",
action="EXEC",
target_record=target_record,
target_record_id=target_record_id,
extra_dict=extra_dict,
)
return task
def migrate(self, session, indata, version, nsr_id, *args, **kwargs):
task_index = 0
extra_dict = {}
now = time()
action_id = indata.get("action_id", str(uuid4()))
step = ""
logging_text = "Task deploy nsr_id={} action_id={} ".format(nsr_id, action_id)
self.logger.debug(logging_text + "Enter")
try:
vnf_instance_id = indata["vnfInstanceId"]
step = "Getting vnfrs from db"
db_vnfr = self.db.get_one("vnfrs", {"_id": vnf_instance_id})
vdu = indata.get("vdu")
migrateToHost = indata.get("migrateToHost")
db_new_tasks = []
with self.write_lock:
if vdu is not None:
vdu_id = indata["vdu"]["vduId"]
vdu_count_index = indata["vdu"].get("vduCountIndex", 0)
for vdu_index, vdu in enumerate(db_vnfr["vdur"]):
if (
vdu["vdu-id-ref"] == vdu_id
and vdu["count-index"] == vdu_count_index
):
extra_dict["params"] = {
"vim_vm_id": vdu["vim-id"],
"migrate_host": migrateToHost,
"vdu_vim_info": vdu["vim_info"],
}
step = "Creating migration task for vdu:{}".format(vdu)
task = self.migrate_task(
vdu,
db_vnfr,
vdu_index,
action_id,
nsr_id,
task_index,
extra_dict,
)
db_new_tasks.append(task)
task_index += 1
break
else:
for vdu_index, vdu in enumerate(db_vnfr["vdur"]):
extra_dict["params"] = {
"vim_vm_id": vdu["vim-id"],
"migrate_host": migrateToHost,
"vdu_vim_info": vdu["vim_info"],
}
step = "Creating migration task for vdu:{}".format(vdu)
task = self.migrate_task(
vdu,
db_vnfr,
vdu_index,
action_id,
nsr_id,
task_index,
extra_dict,
)
db_new_tasks.append(task)
task_index += 1
self.upload_all_tasks(
db_new_tasks=db_new_tasks,
now=now,
)
self.logger.debug(
logging_text + "Exit. Created {} tasks".format(len(db_new_tasks))
)
return (
{"status": "ok", "nsr_id": nsr_id, "action_id": action_id},
action_id,
True,
)
except Exception as e:
if isinstance(e, (DbException, NsException)):
self.logger.error(
logging_text + "Exit Exception while '{}': {}".format(step, e)
)
else:
e = traceback_format_exc()
self.logger.critical(
logging_text + "Exit Exception while '{}': {}".format(step, e),
exc_info=True,
)
raise NsException(e)
def verticalscale_task(
self, vdu, vnf, vdu_index, action_id, nsr_id, task_index, extra_dict
):
target_vim, vim_info = next(k_v for k_v in vdu["vim_info"].items())
self._assign_vim(target_vim)
target_record = "vnfrs:{}:vdur.{}".format(vnf["_id"], vdu_index)
target_record_id = "vnfrs:{}:vdur.{}".format(vnf["_id"], vdu["id"])
deployment_info = {
"action_id": action_id,
"nsr_id": nsr_id,
"task_index": task_index,
}
task = Ns._create_task(
deployment_info=deployment_info,
target_id=target_vim,
item="verticalscale",
action="EXEC",
target_record=target_record,
target_record_id=target_record_id,
extra_dict=extra_dict,
)
return task
def verticalscale(self, session, indata, version, nsr_id, *args, **kwargs):
task_index = 0
extra_dict = {}
now = time()
action_id = indata.get("action_id", str(uuid4()))
step = ""
logging_text = "Task deploy nsr_id={} action_id={} ".format(nsr_id, action_id)
self.logger.debug(logging_text + "Enter")
try:
VnfFlavorData = indata.get("changeVnfFlavorData")
vnf_instance_id = VnfFlavorData["vnfInstanceId"]
step = "Getting vnfrs from db"
db_vnfr = self.db.get_one("vnfrs", {"_id": vnf_instance_id})
vduid = VnfFlavorData["additionalParams"]["vduid"]
vduCountIndex = VnfFlavorData["additionalParams"]["vduCountIndex"]
virtualMemory = VnfFlavorData["additionalParams"]["virtualMemory"]
numVirtualCpu = VnfFlavorData["additionalParams"]["numVirtualCpu"]
sizeOfStorage = VnfFlavorData["additionalParams"]["sizeOfStorage"]
flavor_dict = {
"name": vduid + "-flv",
"ram": virtualMemory,
"vcpus": numVirtualCpu,
"disk": sizeOfStorage,
}
db_new_tasks = []
step = "Creating Tasks for vertical scaling"
with self.write_lock:
for vdu_index, vdu in enumerate(db_vnfr["vdur"]):
if (
vdu["vdu-id-ref"] == vduid
and vdu["count-index"] == vduCountIndex
):
extra_dict["params"] = {
"vim_vm_id": vdu["vim-id"],
"flavor_dict": flavor_dict,
}
task = self.verticalscale_task(
vdu,
db_vnfr,
vdu_index,
action_id,
nsr_id,
task_index,
extra_dict,
)
db_new_tasks.append(task)
task_index += 1
break
self.upload_all_tasks(
db_new_tasks=db_new_tasks,
now=now,
)
self.logger.debug(
logging_text + "Exit. Created {} tasks".format(len(db_new_tasks))
)
return (
{"status": "ok", "nsr_id": nsr_id, "action_id": action_id},
action_id,
True,
)
except Exception as e:
if isinstance(e, (DbException, NsException)):
self.logger.error(
logging_text + "Exit Exception while '{}': {}".format(step, e)
)
else:
e = traceback_format_exc()
self.logger.critical(
logging_text + "Exit Exception while '{}': {}".format(step, e),
exc_info=True,
)
raise NsException(e)