--- /dev/null
+#!/usr/bin/env python3
+
+#
+# Copyright 2016 RIFT.IO Inc
+#
+# 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 argparse
+import collections
+import logging
+import math
+import os
+import sys
+import tempfile
+import yaml
+
+from gi.repository import (
+ RwYang,
+ RwVnfdYang,
+ RwNsdYang,
+ )
+
+logger = logging.getLogger("rift2openmano.py")
+
+
+class VNFNotFoundError(Exception):
+ pass
+
+
+class RiftNSD(object):
+ model = RwYang.Model.create_libncx()
+ model.load_module('nsd')
+ model.load_module('rw-nsd')
+
+ def __init__(self, descriptor):
+ self._nsd = descriptor
+
+ def __str__(self):
+ return str(self._nsd)
+
+ @property
+ def name(self):
+ return self._nsd.name
+
+ @property
+ def id(self):
+ return self._nsd.id
+
+ @property
+ def vnfd_ids(self):
+ return [c.vnfd_id_ref for c in self._nsd.constituent_vnfd]
+
+ @property
+ def constituent_vnfds(self):
+ return self._nsd.constituent_vnfd
+
+ @property
+ def vlds(self):
+ return self._nsd.vld
+
+ @property
+ def cps(self):
+ return self._nsd.connection_point
+
+ @property
+ def description(self):
+ return self._nsd.description
+
+ @classmethod
+ def from_xml_file_hdl(cls, hdl):
+ hdl.seek(0)
+ descriptor = RwNsdYang.YangData_Nsd_NsdCatalog_Nsd()
+ descriptor.from_xml_v2(RiftNSD.model, hdl.read())
+ return cls(descriptor)
+
+ @classmethod
+ def from_yaml_file_hdl(cls, hdl):
+ hdl.seek(0)
+ descriptor = RwNsdYang.YangData_Nsd_NsdCatalog_Nsd()
+ descriptor.from_yaml(RiftNSD.model, hdl.read())
+ return cls(descriptor)
+
+ @classmethod
+ def from_dict(cls, nsd_dict):
+ descriptor = RwNsdYang.YangData_Nsd_NsdCatalog_Nsd.from_dict(nsd_dict)
+ return cls(descriptor)
+
+
+class RiftVNFD(object):
+ model = RwYang.Model.create_libncx()
+ model.load_module('vnfd')
+ model.load_module('rw-vnfd')
+
+ def __init__(self, descriptor):
+ self._vnfd = descriptor
+
+ def __str__(self):
+ return str(self._vnfd)
+
+ @property
+ def id(self):
+ return self._vnfd.id
+
+ @property
+ def name(self):
+ return self._vnfd.name
+
+ @property
+ def description(self):
+ return self._vnfd.description
+
+ @property
+ def cps(self):
+ return self._vnfd.connection_point
+
+ @property
+ def vdus(self):
+ return self._vnfd.vdu
+
+ @property
+ def internal_vlds(self):
+ return self._vnfd.internal_vld
+
+ @classmethod
+ def from_xml_file_hdl(cls, hdl):
+ hdl.seek(0)
+ descriptor = RwVnfdYang.YangData_Vnfd_VnfdCatalog_Vnfd()
+ descriptor.from_xml_v2(RiftVNFD.model, hdl.read())
+ return cls(descriptor)
+
+ @classmethod
+ def from_yaml_file_hdl(cls, hdl):
+ hdl.seek(0)
+ descriptor = RwVnfdYang.YangData_Vnfd_VnfdCatalog_Vnfd()
+ descriptor.from_yaml(RiftVNFD.model, hdl.read())
+ return cls(descriptor)
+
+ @classmethod
+ def from_dict(cls, vnfd_dict):
+ descriptor = RwVnfdYang.YangData_Vnfd_VnfdCatalog_Vnfd.from_dict(vnfd_dict)
+ return cls(descriptor)
+
+
+def is_writable_directory(dir_path):
+ """ Returns True if dir_path is writable, False otherwise
+
+ Arguments:
+ dir_path - A directory path
+ """
+ if not os.path.exists(dir_path):
+ raise ValueError("Directory does not exist: %s", dir_path)
+
+ try:
+ testfile = tempfile.TemporaryFile(dir=dir_path)
+ testfile.close()
+ except OSError:
+ return False
+
+ return True
+
+
+def create_vnfd_from_xml_files(vnfd_file_hdls):
+ """ Create a list of RiftVNFD instances from xml file handles
+
+ Arguments:
+ vnfd_file_hdls - Rift VNFD XML file handles
+
+ Returns:
+ A list of RiftVNFD instances
+ """
+ vnfd_dict = {}
+ for vnfd_file_hdl in vnfd_file_hdls:
+ vnfd = RiftVNFD.from_xml_file_hdl(vnfd_file_hdl)
+ vnfd_dict[vnfd.id] = vnfd
+
+ return vnfd_dict
+
+def create_vnfd_from_yaml_files(vnfd_file_hdls):
+ """ Create a list of RiftVNFD instances from xml file handles
+
+ Arguments:
+ vnfd_file_hdls - Rift VNFD YAML file handles
+
+ Returns:
+ A list of RiftVNFD instances
+ """
+ vnfd_dict = {}
+ for vnfd_file_hdl in vnfd_file_hdls:
+ vnfd = RiftVNFD.from_yaml_file_hdl(vnfd_file_hdl)
+ vnfd_dict[vnfd.id] = vnfd
+
+ return vnfd_dict
+
+
+def create_nsd_from_xml_file(nsd_file_hdl):
+ """ Create a list of RiftNSD instances from xml file handles
+
+ Arguments:
+ nsd_file_hdls - Rift NSD XML file handles
+
+ Returns:
+ A list of RiftNSD instances
+ """
+ nsd = RiftNSD.from_xml_file_hdl(nsd_file_hdl)
+ return nsd
+
+def create_nsd_from_yaml_file(nsd_file_hdl):
+ """ Create a list of RiftNSD instances from yaml file handles
+
+ Arguments:
+ nsd_file_hdls - Rift NSD XML file handles
+
+ Returns:
+ A list of RiftNSD instances
+ """
+ nsd = RiftNSD.from_yaml_file_hdl(nsd_file_hdl)
+ return nsd
+
+
+def ddict():
+ return collections.defaultdict(dict)
+
+def convert_vnfd_name(vnfd_name, member_idx):
+ return vnfd_name + "__" + str(member_idx)
+
+
+def rift2openmano_nsd(rift_nsd, rift_vnfds):
+ for vnfd_id in rift_nsd.vnfd_ids:
+ if vnfd_id not in rift_vnfds:
+ raise VNFNotFoundError("VNF id %s not provided" % vnfd_id)
+
+ openmano = {}
+ openmano["name"] = rift_nsd.name
+ openmano["description"] = rift_nsd.description
+ topology = {}
+ openmano["topology"] = topology
+
+ topology["nodes"] = {}
+ for vnfd in rift_nsd.constituent_vnfds:
+ vnfd_id = vnfd.vnfd_id_ref
+ rift_vnfd = rift_vnfds[vnfd_id]
+ member_idx = vnfd.member_vnf_index
+ topology["nodes"][rift_vnfd.name + "__" + str(member_idx)] = {
+ "type": "VNF",
+ "VNF model": rift_vnfd.name
+ }
+
+ for vld in rift_nsd.vlds:
+ # Openmano has both bridge_net and dataplane_net models for network types
+ # For now, since we are using openmano in developer mode lets just hardcode
+ # to bridge_net since it won't matter anyways.
+ # topology["nodes"][vld.name] = {"type": "network", "model": "bridge_net"}
+ pass
+
+ topology["connections"] = {}
+ for vld in rift_nsd.vlds:
+
+ # Create a connections entry for each external VLD
+ topology["connections"][vld.name] = {}
+ topology["connections"][vld.name]["nodes"] = []
+
+ if vld.vim_network_name:
+ if vld.name not in topology["nodes"]:
+ topology["nodes"][vld.name] = {
+ "type": "external_network",
+ "model": vld.name,
+ }
+
+ # Add the external network to the list of connection points
+ topology["connections"][vld.name]["nodes"].append(
+ {vld.name: "0"}
+ )
+ elif vld.provider_network.has_field("physical_network"):
+ # Add the external datacenter network to the topology
+ # node list if it isn't already added
+ ext_net_name = vld.provider_network.physical_network
+ ext_net_name_with_seg = ext_net_name
+ if vld.provider_network.has_field("segmentation_id"):
+ ext_net_name_with_seg += ":{}".format(vld.provider_network.segmentation_id)
+
+ if ext_net_name not in topology["nodes"]:
+ topology["nodes"][ext_net_name] = {
+ "type": "external_network",
+ "model": ext_net_name_with_seg,
+ }
+
+ # Add the external network to the list of connection points
+ topology["connections"][vld.name]["nodes"].append(
+ {ext_net_name: "0"}
+ )
+
+
+ for vnfd_cp in vld.vnfd_connection_point_ref:
+
+ # Get the RIFT VNF for this external VLD connection point
+ vnfd = rift_vnfds[vnfd_cp.vnfd_id_ref]
+
+ # For each VNF in this connection, use the same interface name
+ topology["connections"][vld.name]["type"] = "link"
+ # Vnf ref is the vnf name with the member_vnf_idx appended
+ member_idx = vnfd_cp.member_vnf_index_ref
+ vnf_ref = vnfd.name + "__" + str(member_idx)
+ topology["connections"][vld.name]["nodes"].append(
+ {
+ vnf_ref: vnfd_cp.vnfd_connection_point_ref
+ }
+ )
+
+ return openmano
+
+
+def rift2openmano_vnfd(rift_vnfd):
+ openmano_vnf = {"vnf":{}}
+ vnf = openmano_vnf["vnf"]
+
+ vnf["name"] = rift_vnfd.name
+ vnf["description"] = rift_vnfd.description
+
+ vnf["external-connections"] = []
+
+ def find_vdu_and_ext_if_by_cp_ref(cp_ref_name):
+ for vdu in rift_vnfd.vdus:
+ for ext_if in vdu.external_interface:
+ if ext_if.vnfd_connection_point_ref == cp_ref_name:
+ return vdu, ext_if
+
+ raise ValueError("External connection point reference %s not found" % cp_ref_name)
+
+ def find_vdu_and_int_if_by_cp_ref(cp_ref_id):
+ for vdu in rift_vnfd.vdus:
+ for int_if in vdu.internal_interface:
+ if int_if.vdu_internal_connection_point_ref == cp_ref_id:
+ return vdu, int_if
+
+ raise ValueError("Internal connection point reference %s not found" % cp_ref_id)
+
+ def rift2openmano_if_type(rift_type):
+ if rift_type == "OM_MGMT":
+ return "mgmt"
+ elif rift_type == "VIRTIO":
+ return "bridge"
+ else:
+ return "data"
+
+ # Add all external connections
+ for cp in rift_vnfd.cps:
+ # Find the VDU and and external interface for this connection point
+ vdu, ext_if = find_vdu_and_ext_if_by_cp_ref(cp.name)
+ connection = {
+ "name": cp.name,
+ "type": rift2openmano_if_type(ext_if.virtual_interface.type_yang),
+ "VNFC": vdu.name,
+ "local_iface_name": ext_if.name,
+ "description": "%s iface on VDU %s" % (ext_if.name, vdu.name),
+ }
+
+ vnf["external-connections"].append(connection)
+
+ # Add all internal networks
+ for vld in rift_vnfd.internal_vlds:
+ connection = {
+ "name": vld.name,
+ "description": vld.description,
+ "type": "data",
+ "elements": [],
+ }
+
+ # Add the specific VDU connection points
+ for int_cp_ref in vld.internal_connection_point_ref:
+ vdu, int_if = find_vdu_and_int_if_by_cp_ref(int_cp_ref)
+ connection["elements"].append({
+ "VNFC": vdu.name,
+ "local_iface_name": int_if.name,
+ })
+ if "internal-connections" not in vnf:
+ vnf["internal-connections"] = []
+
+ vnf["internal-connections"].append(connection)
+
+ # Add VDU's
+ vnf["VNFC"] = []
+ for vdu in rift_vnfd.vdus:
+ vnfc = {
+ "name": vdu.name,
+ "description": vdu.name,
+ "VNFC image": vdu.image if os.path.isabs(vdu.image) else "/var/images/{}".format(vdu.image),
+ "numas": [{
+ "memory": max(int(vdu.vm_flavor.memory_mb/1024), 1),
+ "interfaces":[],
+ }],
+ "bridge-ifaces": [],
+ }
+
+ numa_node_policy = vdu.guest_epa.numa_node_policy
+ if numa_node_policy.has_field("node"):
+ numa_node = numa_node_policy.node[0]
+
+ if numa_node.has_field("paired_threads"):
+ if numa_node.paired_threads.has_field("num_paired_threads"):
+ vnfc["numas"][0]["paired-threads"] = numa_node.paired_threads.num_paired_threads
+ if len(numa_node.paired_threads.paired_thread_ids) > 0:
+ vnfc["numas"][0]["paired-threads-id"] = []
+ for pair in numa_node.paired_threads.paired_thread_ids:
+ vnfc["numas"][0]["paired-threads-id"].append(
+ [pair.thread_a, pair.thread_b]
+ )
+
+ else:
+ if vdu.vm_flavor.has_field("vcpu_count"):
+ vnfc["numas"][0]["cores"] = max(vdu.vm_flavor.vcpu_count, 1)
+
+ if vdu.has_field("hypervisor_epa"):
+ vnfc["hypervisor"] = {}
+ if vdu.hypervisor_epa.has_field("type"):
+ if vdu.hypervisor_epa.type_yang == "REQUIRE_KVM":
+ vnfc["hypervisor"]["type"] = "QEMU-kvm"
+
+ if vdu.hypervisor_epa.has_field("version"):
+ vnfc["hypervisor"]["version"] = vdu.hypervisor_epa.version
+
+ if vdu.has_field("host_epa"):
+ vnfc["processor"] = {}
+ if vdu.host_epa.has_field("om_cpu_model_string"):
+ vnfc["processor"]["model"] = vdu.host_epa.om_cpu_model_string
+ if vdu.host_epa.has_field("om_cpu_feature"):
+ vnfc["processor"]["features"] = []
+ for feature in vdu.host_epa.om_cpu_feature:
+ vnfc["processor"]["features"].append(feature)
+
+
+ if vdu.vm_flavor.has_field("storage_gb"):
+ vnfc["disk"] = vdu.vm_flavor.storage_gb
+
+ vnf["VNFC"].append(vnfc)
+
+ for int_if in list(vdu.internal_interface) + list(vdu.external_interface):
+ intf = {
+ "name": int_if.name,
+ }
+ if int_if.virtual_interface.has_field("vpci"):
+ intf["vpci"] = int_if.virtual_interface.vpci
+
+ if int_if.virtual_interface.type_yang in ["VIRTIO", "OM_MGMT"]:
+ vnfc["bridge-ifaces"].append(intf)
+
+ elif int_if.virtual_interface.type_yang == "SR-IOV":
+ intf["bandwidth"] = "10 Gbps"
+ intf["dedicated"] = "yes:sriov"
+ vnfc["numas"][0]["interfaces"].append(intf)
+
+ elif int_if.virtual_interface.type_yang == "PCI_PASSTHROUGH":
+ intf["bandwidth"] = "10 Gbps"
+ intf["dedicated"] = "yes"
+ if "interfaces" not in vnfc["numas"][0]:
+ vnfc["numas"][0]["interfaces"] = []
+ vnfc["numas"][0]["interfaces"].append(intf)
+ else:
+ raise ValueError("Interface type %s not supported" % int_if.virtual_interface)
+
+ if int_if.virtual_interface.has_field("bandwidth"):
+ if int_if.virtual_interface.bandwidth != 0:
+ bps = int_if.virtual_interface.bandwidth
+
+ # Calculate the bits per second conversion
+ for x in [('M', 1000000), ('G', 1000000000)]:
+ if bps/x[1] >= 1:
+ intf["bandwidth"] = "{} {}bps".format(math.ceil(bps/x[1]), x[0])
+
+
+ return openmano_vnf
+
+
+def parse_args(argv=sys.argv[1:]):
+ """ Parse the command line arguments
+
+ Arguments:
+ arv - The list of arguments to parse
+
+ Returns:
+ Argparse Namespace instance
+ """
+ parser = argparse.ArgumentParser()
+ parser.add_argument(
+ '-o', '--outdir',
+ default='-',
+ help="Directory to output converted descriptors. Default is stdout",
+ )
+
+ parser.add_argument(
+ '-n', '--nsd-file-hdl',
+ metavar="nsd_xml_file",
+ type=argparse.FileType('r'),
+ help="Rift NSD Descriptor File",
+ )
+
+ parser.add_argument(
+ '-v', '--vnfd-file-hdls',
+ metavar="vnfd_xml_file",
+ action='append',
+ type=argparse.FileType('r'),
+ help="Rift VNFD Descriptor File",
+ )
+
+ args = parser.parse_args(argv)
+
+ if not os.path.exists(args.outdir):
+ os.makedirs(args.outdir)
+
+ if not is_writable_directory(args.outdir):
+ logging.error("Directory %s is not writable", args.outdir)
+ sys.exit(1)
+
+ return args
+
+
+def write_yaml_to_file(name, outdir, desc_dict):
+ file_name = "%s.yaml" % name
+ yaml_str = yaml.dump(desc_dict)
+ if outdir == "-":
+ sys.stdout.write(yaml_str)
+ return
+
+ file_path = os.path.join(outdir, file_name)
+ dir_path = os.path.dirname(file_path)
+ if not os.path.exists(dir_path):
+ os.makedirs(dir_path)
+
+ with open(file_path, "w") as hdl:
+ hdl.write(yaml_str)
+
+ logger.info("Wrote descriptor to %s", file_path)
+
+
+def main(argv=sys.argv[1:]):
+ args = parse_args(argv)
+
+ nsd = None
+ if args.vnfd_file_hdls is not None:
+ vnf_dict = create_vnfd_from_xml_files(args.vnfd_file_hdls)
+
+ if args.nsd_file_hdl is not None:
+ nsd = create_nsd_from_xml_file(args.nsd_file_hdl)
+
+ openmano_nsd = rift2openmano_nsd(nsd, vnf_dict)
+
+ write_yaml_to_file(openmano_nsd["name"], args.outdir, openmano_nsd)
+
+ for vnf in vnf_dict.values():
+ openmano_vnf = rift2openmano_vnfd(vnf)
+ write_yaml_to_file(openmano_vnf["vnf"]["name"], args.outdir, openmano_vnf)
+
+
+if __name__ == "__main__":
+ logging.basicConfig(level=logging.WARNING)
+ main()
projects / osm / SO.git / blobdiff