4 # Copyright 2016 RIFT.IO Inc
6 # Licensed under the Apache License, Version 2.0 (the "License");
7 # you may not use this file except in compliance with the License.
8 # You may obtain a copy of the License at
10 # http://www.apache.org/licenses/LICENSE-2.0
12 # Unless required by applicable law or agreed to in writing, software
13 # distributed under the License is distributed on an "AS IS" BASIS,
14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 # See the License for the specific language governing permissions and
16 # limitations under the License.
28 from gi
.repository
import (
34 logger
= logging
.getLogger("rift2openmano.py")
37 class VNFNotFoundError(Exception):
41 class RiftNSD(object):
42 model
= RwYang
.Model
.create_libncx()
43 model
.load_module('nsd')
44 model
.load_module('rw-nsd')
46 def __init__(self
, descriptor
):
47 self
._nsd
= descriptor
62 return [c
.vnfd_id_ref
for c
in self
._nsd
.constituent_vnfd
]
65 def constituent_vnfds(self
):
66 return self
._nsd
.constituent_vnfd
74 return self
._nsd
.connection_point
77 def description(self
):
78 return self
._nsd
.description
81 def from_xml_file_hdl(cls
, hdl
):
83 descriptor
= RwNsdYang
.YangData_Nsd_NsdCatalog_Nsd()
84 descriptor
.from_xml_v2(RiftNSD
.model
, hdl
.read())
85 return cls(descriptor
)
88 def from_yaml_file_hdl(cls
, hdl
):
90 descriptor
= RwNsdYang
.YangData_Nsd_NsdCatalog_Nsd()
91 descriptor
.from_yaml(RiftNSD
.model
, hdl
.read())
92 return cls(descriptor
)
95 def from_dict(cls
, nsd_dict
):
96 descriptor
= RwNsdYang
.YangData_Nsd_NsdCatalog_Nsd
.from_dict(nsd_dict
)
97 return cls(descriptor
)
100 class RiftVNFD(object):
101 model
= RwYang
.Model
.create_libncx()
102 model
.load_module('vnfd')
103 model
.load_module('rw-vnfd')
105 def __init__(self
, descriptor
):
106 self
._vnfd
= descriptor
109 return str(self
._vnfd
)
117 return self
._vnfd
.name
120 def description(self
):
121 return self
._vnfd
.description
125 return self
._vnfd
.connection_point
129 return self
._vnfd
.vdu
132 def internal_vlds(self
):
133 return self
._vnfd
.internal_vld
136 def from_xml_file_hdl(cls
, hdl
):
138 descriptor
= RwVnfdYang
.YangData_Vnfd_VnfdCatalog_Vnfd()
139 descriptor
.from_xml_v2(RiftVNFD
.model
, hdl
.read())
140 return cls(descriptor
)
143 def from_yaml_file_hdl(cls
, hdl
):
145 descriptor
= RwVnfdYang
.YangData_Vnfd_VnfdCatalog_Vnfd()
146 descriptor
.from_yaml(RiftVNFD
.model
, hdl
.read())
147 return cls(descriptor
)
150 def from_dict(cls
, vnfd_dict
):
151 descriptor
= RwVnfdYang
.YangData_Vnfd_VnfdCatalog_Vnfd
.from_dict(vnfd_dict
)
152 return cls(descriptor
)
155 def is_writable_directory(dir_path
):
156 """ Returns True if dir_path is writable, False otherwise
159 dir_path - A directory path
161 if not os
.path
.exists(dir_path
):
162 raise ValueError("Directory does not exist: %s", dir_path
)
165 testfile
= tempfile
.TemporaryFile(dir=dir_path
)
173 def create_vnfd_from_xml_files(vnfd_file_hdls
):
174 """ Create a list of RiftVNFD instances from xml file handles
177 vnfd_file_hdls - Rift VNFD XML file handles
180 A list of RiftVNFD instances
183 for vnfd_file_hdl
in vnfd_file_hdls
:
184 vnfd
= RiftVNFD
.from_xml_file_hdl(vnfd_file_hdl
)
185 vnfd_dict
[vnfd
.id] = vnfd
189 def create_vnfd_from_yaml_files(vnfd_file_hdls
):
190 """ Create a list of RiftVNFD instances from xml file handles
193 vnfd_file_hdls - Rift VNFD YAML file handles
196 A list of RiftVNFD instances
199 for vnfd_file_hdl
in vnfd_file_hdls
:
200 vnfd
= RiftVNFD
.from_yaml_file_hdl(vnfd_file_hdl
)
201 vnfd_dict
[vnfd
.id] = vnfd
206 def create_nsd_from_xml_file(nsd_file_hdl
):
207 """ Create a list of RiftNSD instances from xml file handles
210 nsd_file_hdls - Rift NSD XML file handles
213 A list of RiftNSD instances
215 nsd
= RiftNSD
.from_xml_file_hdl(nsd_file_hdl
)
218 def create_nsd_from_yaml_file(nsd_file_hdl
):
219 """ Create a list of RiftNSD instances from yaml file handles
222 nsd_file_hdls - Rift NSD XML file handles
225 A list of RiftNSD instances
227 nsd
= RiftNSD
.from_yaml_file_hdl(nsd_file_hdl
)
232 return collections
.defaultdict(dict)
234 def convert_vnfd_name(vnfd_name
, member_idx
):
235 return vnfd_name
+ "__" + str(member_idx
)
238 def rift2openmano_nsd(rift_nsd
, rift_vnfds
,openmano_vnfd_ids
):
239 for vnfd_id
in rift_nsd
.vnfd_ids
:
240 if vnfd_id
not in rift_vnfds
:
241 raise VNFNotFoundError("VNF id %s not provided" % vnfd_id
)
244 openmano
["name"] = rift_nsd
.name
245 openmano
["description"] = rift_nsd
.description
247 openmano
["topology"] = topology
249 topology
["nodes"] = {}
250 for vnfd
in rift_nsd
.constituent_vnfds
:
251 vnfd_id
= vnfd
.vnfd_id_ref
252 rift_vnfd
= rift_vnfds
[vnfd_id
]
253 member_idx
= vnfd
.member_vnf_index
254 openmano_vnfd_id
= openmano_vnfd_ids
.get(vnfd_id
,None)
256 topology
["nodes"][rift_vnfd
.name
+ "__" + str(member_idx
)] = {
258 "vnf_id": openmano_vnfd_id
261 topology
["nodes"][rift_vnfd
.name
+ "__" + str(member_idx
)] = {
263 "VNF model": rift_vnfd
.name
266 for vld
in rift_nsd
.vlds
:
267 # Openmano has both bridge_net and dataplane_net models for network types
268 # For now, since we are using openmano in developer mode lets just hardcode
269 # to bridge_net since it won't matter anyways.
270 # topology["nodes"][vld.name] = {"type": "network", "model": "bridge_net"}
273 topology
["connections"] = {}
274 for vld
in rift_nsd
.vlds
:
276 # Create a connections entry for each external VLD
277 topology
["connections"][vld
.name
] = {}
278 topology
["connections"][vld
.name
]["nodes"] = []
280 #if vld.vim_network_name:
282 if vld
.name
not in topology
["nodes"]:
283 topology
["nodes"][vld
.name
] = {
284 "type": "external_network",
288 # Add the external network to the list of connection points
289 topology
["connections"][vld
.name
]["nodes"].append(
292 elif vld
.provider_network
.has_field("physical_network"):
293 # Add the external datacenter network to the topology
294 # node list if it isn't already added
295 ext_net_name
= vld
.provider_network
.physical_network
296 ext_net_name_with_seg
= ext_net_name
297 if vld
.provider_network
.has_field("segmentation_id"):
298 ext_net_name_with_seg
+= ":{}".format(vld
.provider_network
.segmentation_id
)
300 if ext_net_name
not in topology
["nodes"]:
301 topology
["nodes"][ext_net_name
] = {
302 "type": "external_network",
303 "model": ext_net_name_with_seg
,
306 # Add the external network to the list of connection points
307 topology
["connections"][vld
.name
]["nodes"].append(
312 for vnfd_cp
in vld
.vnfd_connection_point_ref
:
314 # Get the RIFT VNF for this external VLD connection point
315 vnfd
= rift_vnfds
[vnfd_cp
.vnfd_id_ref
]
317 # For each VNF in this connection, use the same interface name
318 topology
["connections"][vld
.name
]["type"] = "link"
319 # Vnf ref is the vnf name with the member_vnf_idx appended
320 member_idx
= vnfd_cp
.member_vnf_index_ref
321 vnf_ref
= vnfd
.name
+ "__" + str(member_idx
)
322 topology
["connections"][vld
.name
]["nodes"].append(
324 vnf_ref
: vnfd_cp
.vnfd_connection_point_ref
331 def rift2openmano_vnfd(rift_vnfd
):
332 openmano_vnf
= {"vnf":{}}
333 vnf
= openmano_vnf
["vnf"]
335 vnf
["name"] = rift_vnfd
.name
336 vnf
["description"] = rift_vnfd
.description
338 vnf
["external-connections"] = []
340 def find_vdu_and_ext_if_by_cp_ref(cp_ref_name
):
341 for vdu
in rift_vnfd
.vdus
:
342 for ext_if
in vdu
.external_interface
:
343 if ext_if
.vnfd_connection_point_ref
== cp_ref_name
:
346 raise ValueError("External connection point reference %s not found" % cp_ref_name
)
348 def find_vdu_and_int_if_by_cp_ref(cp_ref_id
):
349 for vdu
in rift_vnfd
.vdus
:
350 for int_if
in vdu
.internal_interface
:
351 if int_if
.vdu_internal_connection_point_ref
== cp_ref_id
:
354 raise ValueError("Internal connection point reference %s not found" % cp_ref_id
)
356 def rift2openmano_if_type(rift_type
):
357 if rift_type
== "OM_MGMT":
359 elif rift_type
== "VIRTIO":
364 # Add all external connections
365 for cp
in rift_vnfd
.cps
:
366 # Find the VDU and and external interface for this connection point
367 vdu
, ext_if
= find_vdu_and_ext_if_by_cp_ref(cp
.name
)
370 "type": rift2openmano_if_type(ext_if
.virtual_interface
.type_yang
),
372 "local_iface_name": ext_if
.name
,
373 "description": "%s iface on VDU %s" % (ext_if
.name
, vdu
.name
),
376 vnf
["external-connections"].append(connection
)
378 # Add all internal networks
379 for vld
in rift_vnfd
.internal_vlds
:
382 "description": vld
.description
,
387 # Add the specific VDU connection points
388 for int_cp_ref
in vld
.internal_connection_point_ref
:
389 vdu
, int_if
= find_vdu_and_int_if_by_cp_ref(int_cp_ref
)
390 connection
["elements"].append({
392 "local_iface_name": int_if
.name
,
394 if "internal-connections" not in vnf
:
395 vnf
["internal-connections"] = []
397 vnf
["internal-connections"].append(connection
)
401 for vdu
in rift_vnfd
.vdus
:
404 "description": vdu
.name
,
405 "VNFC image": vdu
.image
if os
.path
.isabs(vdu
.image
) else "/var/images/{}".format(vdu
.image
),
407 "memory": max(int(vdu
.vm_flavor
.memory_mb
/1024), 1),
413 numa_node_policy
= vdu
.guest_epa
.numa_node_policy
414 if numa_node_policy
.has_field("node"):
415 numa_node
= numa_node_policy
.node
[0]
417 if numa_node
.has_field("paired_threads"):
418 if numa_node
.paired_threads
.has_field("num_paired_threads"):
419 vnfc
["numas"][0]["paired-threads"] = numa_node
.paired_threads
.num_paired_threads
420 if len(numa_node
.paired_threads
.paired_thread_ids
) > 0:
421 vnfc
["numas"][0]["paired-threads-id"] = []
422 for pair
in numa_node
.paired_threads
.paired_thread_ids
:
423 vnfc
["numas"][0]["paired-threads-id"].append(
424 [pair
.thread_a
, pair
.thread_b
]
428 if vdu
.vm_flavor
.has_field("vcpu_count"):
429 vnfc
["numas"][0]["cores"] = max(vdu
.vm_flavor
.vcpu_count
, 1)
431 if vdu
.has_field("hypervisor_epa"):
432 vnfc
["hypervisor"] = {}
433 if vdu
.hypervisor_epa
.has_field("type"):
434 if vdu
.hypervisor_epa
.type_yang
== "REQUIRE_KVM":
435 vnfc
["hypervisor"]["type"] = "QEMU-kvm"
437 if vdu
.hypervisor_epa
.has_field("version"):
438 vnfc
["hypervisor"]["version"] = vdu
.hypervisor_epa
.version
440 if vdu
.has_field("host_epa"):
441 vnfc
["processor"] = {}
442 if vdu
.host_epa
.has_field("om_cpu_model_string"):
443 vnfc
["processor"]["model"] = vdu
.host_epa
.om_cpu_model_string
444 if vdu
.host_epa
.has_field("om_cpu_feature"):
445 vnfc
["processor"]["features"] = []
446 for feature
in vdu
.host_epa
.om_cpu_feature
:
447 vnfc
["processor"]["features"].append(feature
)
450 if vdu
.vm_flavor
.has_field("storage_gb"):
451 vnfc
["disk"] = vdu
.vm_flavor
.storage_gb
453 vnf
["VNFC"].append(vnfc
)
455 for int_if
in list(vdu
.internal_interface
) + list(vdu
.external_interface
):
459 if int_if
.virtual_interface
.has_field("vpci"):
460 intf
["vpci"] = int_if
.virtual_interface
.vpci
462 if int_if
.virtual_interface
.type_yang
in ["VIRTIO", "OM_MGMT"]:
463 vnfc
["bridge-ifaces"].append(intf
)
465 elif int_if
.virtual_interface
.type_yang
== "SR-IOV":
466 intf
["bandwidth"] = "10 Gbps"
467 intf
["dedicated"] = "yes:sriov"
468 vnfc
["numas"][0]["interfaces"].append(intf
)
470 elif int_if
.virtual_interface
.type_yang
== "PCI_PASSTHROUGH":
471 intf
["bandwidth"] = "10 Gbps"
472 intf
["dedicated"] = "yes"
473 if "interfaces" not in vnfc
["numas"][0]:
474 vnfc
["numas"][0]["interfaces"] = []
475 vnfc
["numas"][0]["interfaces"].append(intf
)
477 raise ValueError("Interface type %s not supported" % int_if
.virtual_interface
)
479 if int_if
.virtual_interface
.has_field("bandwidth"):
480 if int_if
.virtual_interface
.bandwidth
!= 0:
481 bps
= int_if
.virtual_interface
.bandwidth
483 # Calculate the bits per second conversion
484 for x
in [('M', 1000000), ('G', 1000000000)]:
486 intf
["bandwidth"] = "{} {}bps".format(math
.ceil(bps
/x
[1]), x
[0])
492 def parse_args(argv
=sys
.argv
[1:]):
493 """ Parse the command line arguments
496 arv - The list of arguments to parse
499 Argparse Namespace instance
501 parser
= argparse
.ArgumentParser()
505 help="Directory to output converted descriptors. Default is stdout",
509 '-n', '--nsd-file-hdl',
510 metavar
="nsd_xml_file",
511 type=argparse
.FileType('r'),
512 help="Rift NSD Descriptor File",
516 '-v', '--vnfd-file-hdls',
517 metavar
="vnfd_xml_file",
519 type=argparse
.FileType('r'),
520 help="Rift VNFD Descriptor File",
523 args
= parser
.parse_args(argv
)
525 if not os
.path
.exists(args
.outdir
):
526 os
.makedirs(args
.outdir
)
528 if not is_writable_directory(args
.outdir
):
529 logging
.error("Directory %s is not writable", args
.outdir
)
535 def write_yaml_to_file(name
, outdir
, desc_dict
):
536 file_name
= "%s.yaml" % name
537 yaml_str
= yaml
.dump(desc_dict
)
539 sys
.stdout
.write(yaml_str
)
542 file_path
= os
.path
.join(outdir
, file_name
)
543 dir_path
= os
.path
.dirname(file_path
)
544 if not os
.path
.exists(dir_path
):
545 os
.makedirs(dir_path
)
547 with
open(file_path
, "w") as hdl
:
550 logger
.info("Wrote descriptor to %s", file_path
)
553 def main(argv
=sys
.argv
[1:]):
554 args
= parse_args(argv
)
557 if args
.vnfd_file_hdls
is not None:
558 vnf_dict
= create_vnfd_from_xml_files(args
.vnfd_file_hdls
)
560 if args
.nsd_file_hdl
is not None:
561 nsd
= create_nsd_from_xml_file(args
.nsd_file_hdl
)
563 openmano_nsd
= rift2openmano_nsd(nsd
, vnf_dict
)
565 write_yaml_to_file(openmano_nsd
["name"], args
.outdir
, openmano_nsd
)
567 for vnf
in vnf_dict
.values():
568 openmano_vnf
= rift2openmano_vnfd(vnf
)
569 write_yaml_to_file(openmano_vnf
["vnf"]["name"], args
.outdir
, openmano_vnf
)
572 if __name__
== "__main__":
573 logging
.basicConfig(level
=logging
.WARNING
)