osm_lcm/data_utils/vnfd.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Copyright 2020 Whitestack, LLC
   4 # *************************************************************
   5 #
   6 # This file is part of OSM Monitoring module
   7 # All Rights Reserved to Whitestack, LLC
   8 #
   9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
  10 # not use this file except in compliance with the License. You may obtain
  11 # a copy of the License at
  12 #
  13 #         http://www.apache.org/licenses/LICENSE-2.0
  14 #
  15 # Unless required by applicable law or agreed to in writing, software
  16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  18 # License for the specific language governing permissions and limitations
  19 # under the License.
  20 #
  21 # For those usages not covered by the Apache License, Version 2.0 please
  22 # contact: fbravo@whitestack.com
  23 ##
  24
  25 from osm_lcm.data_utils import list_utils
  26
  27
  28 def get_lcm_operations_configuration(vnfd):
  29     return vnfd.get("df", ())[0].get("lcm-operations-configuration", ())
  30
  31
  32 def get_vdu_list(vnfd):
  33     return vnfd.get("vdu", ())
  34
  35
  36 def get_kdu_list(vnfd):
  37     return vnfd.get("kdu", ())
  38
  39
  40 def get_ee_sorted_initial_config_primitive_list(primitive_list, vca_deployed, ee_descriptor_id):
  41     """
  42     Generates a list of initial-config-primitive based on the list provided by the descriptor. It includes internal
  43     primitives as verify-ssh-credentials, or config when needed
  44     :param primitive_list: information of the descriptor
  45     :param vca_deployed: information of the deployed, needed for known if it is related to an NS, VNF, VDU and if
  46         this element contains a ssh public key
  47     :param ee_descriptor_id: execution environment descriptor id. It is the value of
  48         XXX_configuration.execution-environment-list.INDEX.id; it can be None
  49     :return: The modified list. Can ba an empty list, but always a list
  50     """
  51     primitive_list = primitive_list or []
  52     primitive_list = [
  53         p for p in primitive_list if p.get("execution-environment-ref", ee_descriptor_id) == ee_descriptor_id
  54     ]
  55     if primitive_list:
  56         primitive_list.sort(key=lambda val: int(val['seq']))
  57
  58     # look for primitive config, and get the position. None if not present
  59     config_position = None
  60     for index, primitive in enumerate(primitive_list):
  61         if primitive["name"] == "config":
  62             config_position = index
  63             break
  64
  65     # for NS, add always a config primitive if not present (bug 874)
  66     if not vca_deployed["member-vnf-index"] and config_position is None:
  67         primitive_list.insert(0, {"name": "config", "parameter": []})
  68         config_position = 0
  69     # TODO revise if needed: for VNF/VDU add verify-ssh-credentials after config
  70     if vca_deployed["member-vnf-index"] and config_position is not None and vca_deployed.get("ssh-public-key"):
  71         primitive_list.insert(config_position + 1, {"name": "verify-ssh-credentials", "parameter": []})
  72     return primitive_list
  73
  74
  75 def get_ee_sorted_terminate_config_primitive_list(primitive_list, ee_descriptor_id):
  76     primitive_list = primitive_list or []
  77     primitive_list = [
  78         p for p in primitive_list if p.get("execution-environment-ref", ee_descriptor_id) == ee_descriptor_id
  79     ]
  80     if primitive_list:
  81         primitive_list.sort(key=lambda val: int(val['seq']))
  82     return primitive_list
  83
  84
  85 def get_vdu_profile(vnfd, vdu_profile_id):
  86     return list_utils.find_in_list(
  87         vnfd.get("df", ())[0]["vdu-profile"],
  88         lambda vdu_profile: vdu_profile["id"] == vdu_profile_id)
  89
  90
  91 def get_configuration(vnfd, entity_id):
  92     lcm_ops_config = vnfd.get("df")[0].get("lcm-operations-configuration")
  93     if not lcm_ops_config:
  94         return None
  95     ops_vnf = lcm_ops_config.get("operate-vnf-op-config")
  96     if not ops_vnf:
  97         return None
  98     day12ops = ops_vnf.get("day1-2", [])
  99     list_utils.find_in_list(
 100         day12ops,
 101         lambda configuration: configuration["id"] == entity_id)
 102
 103
 104 def get_virtual_link_profiles(vnfd):
 105     return vnfd.get("df")[0].get("virtual-link-profile", ())
 106
 107
 108 def get_vdu(vnfd, vdu_id):
 109     return list_utils.find_in_list(
 110         vnfd.get("vdu", ()),
 111         lambda vdu: vdu["id"] == vdu_id)
 112
 113
 114 def get_vdu_index(vnfd, vdu_id):
 115     target_vdu = list_utils.find_in_list(
 116         vnfd.get("vdu", ()),
 117         lambda vdu: vdu["id"] == vdu_id)
 118     if target_vdu:
 119         return vnfd.get("vdu", ()).index(target_vdu)
 120     else:
 121         return -1
 122
 123
 124 def get_scaling_aspect(vnfd):
 125     return vnfd.get("df", ())[0].get("scaling-aspect", ())
 126
 127
 128 def get_number_of_instances(vnfd, vdu_id):
 129     return list_utils.find_in_list(
 130         vnfd.get(
 131             "df",
 132             ()
 133         )[0].get(
 134             "instantiation-level",
 135             ()
 136         )[0].get(
 137             "vdu-level",
 138             ()
 139         ),
 140         lambda a_vdu: a_vdu["vdu-id"] == vdu_id
 141     )["number-of-instances"]