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(
  41     primitive_list, vca_deployed, ee_descriptor_id
  42 ):
  43     """
  44     Generates a list of initial-config-primitive based on the list provided by the descriptor. It includes internal
  45     primitives as verify-ssh-credentials, or config when needed
  46     :param primitive_list: information of the descriptor
  47     :param vca_deployed: information of the deployed, needed for known if it is related to an NS, VNF, VDU and if
  48         this element contains a ssh public key
  49     :param ee_descriptor_id: execution environment descriptor id. It is the value of
  50         XXX_configuration.execution-environment-list.INDEX.id; it can be None
  51     :return: The modified list. Can ba an empty list, but always a list
  52     """
  53     primitive_list = primitive_list or []
  54     primitive_list = [
  55         p
  56         for p in primitive_list
  57         if p.get("execution-environment-ref", ee_descriptor_id) == ee_descriptor_id
  58     ]
  59     if primitive_list:
  60         primitive_list.sort(key=lambda val: int(val["seq"]))
  61
  62     # look for primitive config, and get the position. None if not present
  63     config_position = None
  64     for index, primitive in enumerate(primitive_list):
  65         if primitive["name"] == "config":
  66             config_position = index
  67             break
  68
  69     # for NS, add always a config primitive if not present (bug 874)
  70     if not vca_deployed["member-vnf-index"] and config_position is None:
  71         primitive_list.insert(0, {"name": "config", "parameter": []})
  72         config_position = 0
  73     # TODO revise if needed: for VNF/VDU add verify-ssh-credentials after config
  74     if (
  75         vca_deployed["member-vnf-index"]
  76         and config_position is not None
  77         and vca_deployed.get("ssh-public-key")
  78     ):
  79         primitive_list.insert(
  80             config_position + 1, {"name": "verify-ssh-credentials", "parameter": []}
  81         )
  82     return primitive_list
  83
  84
  85 def get_ee_sorted_terminate_config_primitive_list(primitive_list, ee_descriptor_id):
  86     primitive_list = primitive_list or []
  87     primitive_list = [
  88         p
  89         for p in primitive_list
  90         if p.get("execution-environment-ref", ee_descriptor_id) == ee_descriptor_id
  91     ]
  92     if primitive_list:
  93         primitive_list.sort(key=lambda val: int(val["seq"]))
  94     return primitive_list
  95
  96
  97 def get_vdu_profile(vnfd, vdu_profile_id):
  98     return list_utils.find_in_list(
  99         vnfd.get("df", ())[0]["vdu-profile"],
 100         lambda vdu_profile: vdu_profile["id"] == vdu_profile_id,
 101     )
 102
 103
 104 def get_kdu_profile(vnfd, kdu_profile_id):
 105     return list_utils.find_in_list(
 106         vnfd.get("df", ())[0]["kdu-resource-profile"],
 107         lambda kdu_profile: kdu_profile["id"] == kdu_profile_id,
 108     )
 109
 110
 111 def get_configuration(vnfd, entity_id):
 112     lcm_ops_config = vnfd.get("df")[0].get("lcm-operations-configuration")
 113     if not lcm_ops_config:
 114         return None
 115     ops_vnf = lcm_ops_config.get("operate-vnf-op-config")
 116     if not ops_vnf:
 117         return None
 118     day12ops = ops_vnf.get("day1-2", [])
 119     return list_utils.find_in_list(
 120         day12ops, lambda configuration: configuration["id"] == entity_id
 121     )
 122
 123
 124 def get_virtual_link_profiles(vnfd):
 125     return vnfd.get("df")[0].get("virtual-link-profile", ())
 126
 127
 128 def get_vdu(vnfd, vdu_id):
 129     return list_utils.find_in_list(vnfd.get("vdu", ()), lambda vdu: vdu["id"] == vdu_id)
 130
 131
 132 def get_vdu_index(vnfd, vdu_id):
 133     target_vdu = list_utils.find_in_list(
 134         vnfd.get("vdu", ()), lambda vdu: vdu["id"] == vdu_id
 135     )
 136     if target_vdu:
 137         return vnfd.get("vdu", ()).index(target_vdu)
 138     else:
 139         return -1
 140
 141
 142 def get_scaling_aspect(vnfd):
 143     return vnfd.get("df", ())[0].get("scaling-aspect", ())
 144
 145
 146 def get_number_of_instances(vnfd, vdu_id):
 147     return list_utils.find_in_list(
 148         vnfd.get("df", ())[0].get("instantiation-level", ())[0].get("vdu-level", ()),
 149         lambda a_vdu: a_vdu["vdu-id"] == vdu_id,
 150     ).get("number-of-instances", 1)
 151
 152
 153 def get_juju_ee_ref(vnfd, entity_id):
 154     return list_utils.find_in_list(
 155         get_configuration(vnfd, entity_id).get("execution-environment-list", []),
 156         lambda ee: "juju" in ee,
 157     )