83737ee493e47c84acdb2196f29babd962f32470
2 Copyright (c) 2015 SONATA-NFV and Paderborn University
5 Licensed under the Apache License, Version 2.0 (the "License");
6 you may not use this file except in compliance with the License.
7 You may obtain a copy of the License at
9 http://www.apache.org/licenses/LICENSE-2.0
11 Unless required by applicable law or agreed to in writing, software
12 distributed under the License is distributed on an "AS IS" BASIS,
13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 See the License for the specific language governing permissions and
15 limitations under the License.
17 Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
18 nor the names of its contributors may be used to endorse or promote
19 products derived from this software without specific prior written
22 This work has been performed in the framework of the SONATA project,
23 funded by the European Commission under Grant number 671517 through
24 the Horizon 2020 and 5G-PPP programmes. The authors would like to
25 acknowledge the contributions of their colleagues of the SONATA
26 partner consortium (www.sonata-nfv.eu).
29 This module implements a simple REST API that behaves like SONATA's gatekeeper.
31 It is only used to support the development of SONATA's SDK tools and to demonstrate
32 the year 1 version of the emulator until the integration with WP4's orchestrator is done.
42 from docker
import Client
as DockerClient
43 from flask
import Flask
, request
44 import flask_restful
as fr
45 from collections
import defaultdict
49 LOG
= logging
.getLogger("sonata-dummy-gatekeeper")
50 LOG
.setLevel(logging
.DEBUG
)
51 logging
.getLogger("werkzeug").setLevel(logging
.WARNING
)
53 GK_STORAGE
= "/tmp/son-dummy-gk/"
54 UPLOAD_FOLDER
= os
.path
.join(GK_STORAGE
, "uploads/")
55 CATALOG_FOLDER
= os
.path
.join(GK_STORAGE
, "catalog/")
57 # Enable Dockerfile build functionality
58 BUILD_DOCKERFILE
= False
60 # flag to indicate that we run without the emulator (only the bare API for integration testing)
61 GK_STANDALONE_MODE
= False
63 # should a new version of an image be pulled even if its available
66 # Automatically deploy SAPs (endpoints) of the service as new containers
67 # Attention: This is not a configuration switch but a global variable! Don't change its default value.
70 # flag to indicate if we use bidirectional forwarding rules in the automatic chaining process
71 BIDIRECTIONAL_CHAIN
= False
73 class Gatekeeper(object):
76 self
.services
= dict()
78 self
.vnf_counter
= 0 # used to generate short names for VNFs (Mininet limitation)
79 LOG
.info("Create SONATA dummy gatekeeper.")
81 def register_service_package(self
, service_uuid
, service
):
83 register new service package
87 self
.services
[service_uuid
] = service
88 # lets perform all steps needed to onboard the service
91 def get_next_vnf_name(self
):
93 return "vnf%d" % self
.vnf_counter
96 class Service(object):
98 This class represents a NS uploaded as a *.son package to the
100 Can have multiple running instances of this service.
107 self
.uuid
= service_uuid
108 self
.package_file_hash
= package_file_hash
109 self
.package_file_path
= package_file_path
110 self
.package_content_path
= os
.path
.join(CATALOG_FOLDER
, "services/%s" % self
.uuid
)
114 self
.local_docker_files
= dict()
115 self
.remote_docker_image_urls
= dict()
116 self
.instances
= dict()
117 self
.vnf_name2docker_name
= dict()
118 self
.sap_identifiers
= set()
119 # lets generate a set of subnet configurations used for e-line chaining setup
120 self
.eline_subnets_src
= generate_subnet_strings(50, start
=200, subnet_size
=24, ip
=1)
121 self
.eline_subnets_dst
= generate_subnet_strings(50, start
=200, subnet_size
=24, ip
=2)
125 Do all steps to prepare this service to be instantiated
128 # 1. extract the contents of the package and store them in our catalog
129 self
._unpack
_service
_package
()
130 # 2. read in all descriptor files
131 self
._load
_package
_descriptor
()
136 # 3. prepare container images (e.g. download or build Dockerfile)
138 self
._load
_docker
_files
()
139 self
._build
_images
_from
_dockerfiles
()
141 self
._load
_docker
_urls
()
142 self
._pull
_predefined
_dockerimages
()
143 LOG
.info("On-boarded service: %r" % self
.manifest
.get("name"))
145 def start_service(self
):
147 This methods creates and starts a new service instance.
148 It computes placements, iterates over all VNFDs, and starts
149 each VNFD as a Docker container in the data center selected
150 by the placement algorithm.
153 LOG
.info("Starting service %r" % self
.uuid
)
155 # 1. each service instance gets a new uuid to identify it
156 instance_uuid
= str(uuid
.uuid4())
157 # build a instances dict (a bit like a NSR :))
158 self
.instances
[instance_uuid
] = dict()
159 self
.instances
[instance_uuid
]["vnf_instances"] = list()
161 # 2. Configure the chaining of the network functions (currently only E-Line and E-LAN links supported)
162 vnf_id2vnf_name
= defaultdict(lambda: "NotExistingNode",
163 reduce(lambda x
, y
: dict(x
, **y
),
164 map(lambda d
: {d
["vnf_id"]: d
["vnf_name"]},
165 self
.nsd
["network_functions"])))
167 # 3. compute placement of this service instance (adds DC names to VNFDs)
168 if not GK_STANDALONE_MODE
:
169 #self._calculate_placement(FirstDcPlacement)
170 self
._calculate
_placement
(RoundRobinDcPlacement
)
171 # iterate over all vnfds that we have to start
172 for vnfd
in self
.vnfds
.itervalues():
174 if not GK_STANDALONE_MODE
:
175 vnfi
= self
._start
_vnfd
(vnfd
)
176 self
.instances
[instance_uuid
]["vnf_instances"].append(vnfi
)
178 vlinks
= self
.nsd
["virtual_links"]
179 fwd_links
= self
.nsd
["forwarding_graphs"][0]["constituent_virtual_links"]
180 eline_fwd_links
= [l
for l
in vlinks
if (l
["id"] in fwd_links
) and (l
["connectivity_type"] == "E-Line")]
181 elan_fwd_links
= [l
for l
in vlinks
if (l
["id"] in fwd_links
) and (l
["connectivity_type"] == "E-LAN")]
183 # 4a. deploy E-Line links
184 # cookie is used as identifier for the flowrules installed by the dummygatekeeper
185 # eg. different services get a unique cookie for their flowrules
187 for link
in eline_fwd_links
:
188 src_id
, src_if_name
= link
["connection_points_reference"][0].split(":")
189 dst_id
, dst_if_name
= link
["connection_points_reference"][1].split(":")
191 # check if there is a SAP in the link
192 if src_id
in self
.sap_identifiers
:
193 src_docker_name
= "{0}_{1}".format(src_id
, src_if_name
)
194 src_id
= src_docker_name
196 src_docker_name
= src_id
198 if dst_id
in self
.sap_identifiers
:
199 dst_docker_name
= "{0}_{1}".format(dst_id
, dst_if_name
)
200 dst_id
= dst_docker_name
202 dst_docker_name
= dst_id
204 src_name
= vnf_id2vnf_name
[src_id
]
205 dst_name
= vnf_id2vnf_name
[dst_id
]
208 "Setting up E-Line link. %s(%s:%s) -> %s(%s:%s)" % (
209 src_name
, src_id
, src_if_name
, dst_name
, dst_id
, dst_if_name
))
211 if (src_name
in self
.vnfds
) and (dst_name
in self
.vnfds
):
212 network
= self
.vnfds
[src_name
].get("dc").net
# there should be a cleaner way to find the DCNetwork
213 LOG
.debug(src_docker_name
)
214 ret
= network
.setChain(
215 src_docker_name
, dst_docker_name
,
216 vnf_src_interface
=src_if_name
, vnf_dst_interface
=dst_if_name
,
217 bidirectional
=BIDIRECTIONAL_CHAIN
, cmd
="add-flow", cookie
=cookie
, priority
=10)
219 # re-configure the VNFs IP assignment and ensure that a new subnet is used for each E-Link
220 src_vnfi
= self
._get
_vnf
_instance
(instance_uuid
, src_name
)
221 if src_vnfi
is not None:
222 self
._vnf
_reconfigure
_network
(src_vnfi
, src_if_name
, self
.eline_subnets_src
.pop(0))
223 dst_vnfi
= self
._get
_vnf
_instance
(instance_uuid
, dst_name
)
224 if dst_vnfi
is not None:
225 self
._vnf
_reconfigure
_network
(dst_vnfi
, dst_if_name
, self
.eline_subnets_dst
.pop(0))
227 # 4b. deploy E-LAN links
229 for link
in elan_fwd_links
:
230 # generate lan ip address
232 for intf
in link
["connection_points_reference"]:
233 ip_address
= generate_lan_string("10.0", base
, subnet_size
=24, ip
=ip
)
234 vnf_id
, intf_name
= intf
.split(":")
235 if vnf_id
in self
.sap_identifiers
:
236 src_docker_name
= "{0}_{1}".format(vnf_id
, intf_name
)
237 vnf_id
= src_docker_name
238 vnf_name
= vnf_id2vnf_name
[vnf_id
]
240 "Setting up E-LAN link. %s(%s:%s) -> %s" % (
241 vnf_name
, vnf_id
, intf_name
, ip_address
))
243 if vnf_name
in self
.vnfds
:
244 # re-configure the VNFs IP assignment and ensure that a new subnet is used for each E-LAN
245 # E-LAN relies on the learning switch capability of Ryu which has to be turned on in the topology
246 # (DCNetwork(controller=RemoteController, enable_learning=True)), so no explicit chaining is necessary.
247 vnfi
= self
._get
_vnf
_instance
(instance_uuid
, vnf_name
)
249 self
._vnf
_reconfigure
_network
(vnfi
, intf_name
, ip_address
)
250 # increase for the next ip address on this E-LAN
252 # increase the base ip address for the next E-LAN
255 # 5. run the emulator specific entrypoint scripts in the VNFIs of this service instance
256 self
._trigger
_emulator
_start
_scripts
_in
_vnfis
(self
.instances
[instance_uuid
]["vnf_instances"])
258 LOG
.info("Service started. Instance id: %r" % instance_uuid
)
261 def _start_vnfd(self
, vnfd
):
263 Start a single VNFD of this service
264 :param vnfd: vnfd descriptor dict
267 # iterate over all deployment units within each VNFDs
268 for u
in vnfd
.get("virtual_deployment_units"):
269 # 1. get the name of the docker image to start and the assigned DC
270 vnf_name
= vnfd
.get("name")
271 if vnf_name
not in self
.remote_docker_image_urls
:
272 raise Exception("No image name for %r found. Abort." % vnf_name
)
273 docker_name
= self
.remote_docker_image_urls
.get(vnf_name
)
274 target_dc
= vnfd
.get("dc")
275 # 2. perform some checks to ensure we can start the container
276 assert(docker_name
is not None)
277 assert(target_dc
is not None)
278 if not self
._check
_docker
_image
_exists
(docker_name
):
279 raise Exception("Docker image %r not found. Abort." % docker_name
)
280 # 3. do the dc.startCompute(name="foobar") call to run the container
281 # TODO consider flavors, and other annotations
282 intfs
= vnfd
.get("connection_points")
284 # TODO: get all vnf id's from the nsd for this vnfd and use those as dockername
285 # use the vnf_id in the nsd as docker name
286 # so deployed containers can be easily mapped back to the nsd
287 vnf_name2id
= defaultdict(lambda: "NotExistingNode",
288 reduce(lambda x
, y
: dict(x
, **y
),
289 map(lambda d
: {d
["vnf_name"]: d
["vnf_id"]},
290 self
.nsd
["network_functions"])))
291 self
.vnf_name2docker_name
[vnf_name
] = vnf_name2id
[vnf_name
]
292 # self.vnf_name2docker_name[vnf_name] = GK.get_next_vnf_name()
294 LOG
.info("Starting %r as %r in DC %r" % (vnf_name
, self
.vnf_name2docker_name
[vnf_name
], vnfd
.get("dc")))
295 LOG
.debug("Interfaces for %r: %r" % (vnf_name
, intfs
))
296 vnfi
= target_dc
.startCompute(self
.vnf_name2docker_name
[vnf_name
], network
=intfs
, image
=docker_name
, flavor_name
="small")
299 def _get_vnf_instance(self
, instance_uuid
, name
):
301 Returns the Docker object for the given VNF name (or Docker name).
302 :param instance_uuid: UUID of the service instance to search in.
303 :param name: VNF name or Docker name. We are fuzzy here.
307 if name
in self
.vnf_name2docker_name
:
308 dn
= self
.vnf_name2docker_name
[name
]
309 for vnfi
in self
.instances
[instance_uuid
]["vnf_instances"]:
312 LOG
.warning("No container with name: %r found.")
316 def _vnf_reconfigure_network(vnfi
, if_name
, net_str
):
318 Reconfigure the network configuration of a specific interface
319 of a running container.
320 :param vnfi: container instacne
321 :param if_name: interface name
322 :param net_str: network configuration string, e.g., 1.2.3.4/24
325 intf
= vnfi
.intf(intf
=if_name
)
328 LOG
.debug("Reconfigured network of %s:%s to %r" % (vnfi
.name
, if_name
, net_str
))
330 LOG
.warning("Interface not found: %s:%s. Network reconfiguration skipped." % (vnfi
.name
, if_name
))
333 def _trigger_emulator_start_scripts_in_vnfis(self
, vnfi_list
):
334 for vnfi
in vnfi_list
:
335 config
= vnfi
.dcinfo
.get("Config", dict())
336 env
= config
.get("Env", list())
338 if "SON_EMU_CMD=" in env_var
:
339 cmd
= str(env_var
.split("=")[1])
340 LOG
.info("Executing entry point script in %r: %r" % (vnfi
.name
, cmd
))
341 # execute command in new thread to ensure that GK is not blocked by VNF
342 t
= threading
.Thread(target
=vnfi
.cmdPrint
, args
=(cmd
,))
346 def _unpack_service_package(self
):
348 unzip *.son file and store contents in CATALOG_FOLDER/services/<service_uuid>/
350 LOG
.info("Unzipping: %r" % self
.package_file_path
)
351 with zipfile
.ZipFile(self
.package_file_path
, "r") as z
:
352 z
.extractall(self
.package_content_path
)
355 def _load_package_descriptor(self
):
357 Load the main package descriptor YAML and keep it as dict.
360 self
.manifest
= load_yaml(
362 self
.package_content_path
, "META-INF/MANIFEST.MF"))
366 Load the entry NSD YAML and keep it as dict.
369 if "entry_service_template" in self
.manifest
:
370 nsd_path
= os
.path
.join(
371 self
.package_content_path
,
372 make_relative_path(self
.manifest
.get("entry_service_template")))
373 self
.nsd
= load_yaml(nsd_path
)
374 LOG
.debug("Loaded NSD: %r" % self
.nsd
.get("name"))
376 def _load_vnfd(self
):
378 Load all VNFD YAML files referenced in MANIFEST.MF and keep them in dict.
381 if "package_content" in self
.manifest
:
382 for pc
in self
.manifest
.get("package_content"):
383 if pc
.get("content-type") == "application/sonata.function_descriptor":
384 vnfd_path
= os
.path
.join(
385 self
.package_content_path
,
386 make_relative_path(pc
.get("name")))
387 vnfd
= load_yaml(vnfd_path
)
388 self
.vnfds
[vnfd
.get("name")] = vnfd
389 LOG
.debug("Loaded VNFD: %r" % vnfd
.get("name"))
391 def _load_saps(self
):
392 # Each Service Access Point (connection_point) in the nsd is getting its own container
393 SAPs
= [p
["id"] for p
in self
.nsd
["connection_points"] if p
["type"] == "interface"]
395 # endpoints needed in this service
396 sap_vnf_id
, sap_vnf_interface
= sap
.split(':')
397 # set of the connection_point ids found in the nsd (in the examples this is 'ns')
398 self
.sap_identifiers
.add(sap_vnf_id
)
400 sap_docker_name
= "%s_%s" % (sap_vnf_id
, sap_vnf_interface
)
402 # add SAP to self.vnfds
403 sapfile
= pkg_resources
.resource_filename(__name__
, "sap_vnfd.yml")
404 sap_vnfd
= load_yaml(sapfile
)
405 sap_vnfd
["connection_points"][0]["id"] = sap_vnf_interface
406 sap_vnfd
["name"] = sap_docker_name
407 self
.vnfds
[sap_docker_name
] = sap_vnfd
408 # add SAP vnf to list in the NSD so it is deployed later on
409 # each SAP get a unique VNFD and vnf_id in the NSD
410 self
.nsd
["network_functions"].append({"vnf_id": sap_docker_name
, "vnf_name": sap_docker_name
})
411 LOG
.debug("Loaded SAP: %r" % sap_vnfd
.get("name"))
413 def _load_docker_files(self
):
415 Get all paths to Dockerfiles from VNFDs and store them in dict.
418 for k
, v
in self
.vnfds
.iteritems():
419 for vu
in v
.get("virtual_deployment_units"):
420 if vu
.get("vm_image_format") == "docker":
421 vm_image
= vu
.get("vm_image")
422 docker_path
= os
.path
.join(
423 self
.package_content_path
,
424 make_relative_path(vm_image
))
425 self
.local_docker_files
[k
] = docker_path
426 LOG
.debug("Found Dockerfile (%r): %r" % (k
, docker_path
))
428 def _load_docker_urls(self
):
430 Get all URLs to pre-build docker images in some repo.
433 for k
, v
in self
.vnfds
.iteritems():
434 for vu
in v
.get("virtual_deployment_units"):
435 if vu
.get("vm_image_format") == "docker":
436 url
= vu
.get("vm_image")
438 url
= url
.replace("http://", "")
439 self
.remote_docker_image_urls
[k
] = url
440 LOG
.debug("Found Docker image URL (%r): %r" % (k
, self
.remote_docker_image_urls
[k
]))
442 def _build_images_from_dockerfiles(self
):
444 Build Docker images for each local Dockerfile found in the package: self.local_docker_files
446 if GK_STANDALONE_MODE
:
447 return # do not build anything in standalone mode
449 LOG
.info("Building %d Docker images (this may take several minutes) ..." % len(self
.local_docker_files
))
450 for k
, v
in self
.local_docker_files
.iteritems():
451 for line
in dc
.build(path
=v
.replace("Dockerfile", ""), tag
=k
, rm
=False, nocache
=False):
452 LOG
.debug("DOCKER BUILD: %s" % line
)
453 LOG
.info("Docker image created: %s" % k
)
455 def _pull_predefined_dockerimages(self
):
457 If the package contains URLs to pre-build Docker images, we download them with this method.
460 for url
in self
.remote_docker_image_urls
.itervalues():
461 if not FORCE_PULL
: # only pull if not present (speedup for development)
462 if len(dc
.images(name
=url
)) > 0:
463 LOG
.debug("Image %r present. Skipping pull." % url
)
465 LOG
.info("Pulling image: %r" % url
)
467 insecure_registry
=True)
469 def _check_docker_image_exists(self
, image_name
):
471 Query the docker service and check if the given image exists
472 :param image_name: name of the docker image
475 return len(DockerClient().images(image_name
)) > 0
477 def _calculate_placement(self
, algorithm
):
479 Do placement by adding the a field "dc" to
480 each VNFD that points to one of our
481 data center objects known to the gatekeeper.
483 assert(len(self
.vnfds
) > 0)
484 assert(len(GK
.dcs
) > 0)
485 # instantiate algorithm an place
487 p
.place(self
.nsd
, self
.vnfds
, GK
.dcs
)
488 LOG
.info("Using placement algorithm: %r" % p
.__class
__.__name
__)
489 # lets print the placement result
490 for name
, vnfd
in self
.vnfds
.iteritems():
491 LOG
.info("Placed VNF %r on DC %r" % (name
, str(vnfd
.get("dc"))))
495 Some (simple) placement algorithms
499 class FirstDcPlacement(object):
501 Placement: Always use one and the same data center from the GK.dcs dict.
503 def place(self
, nsd
, vnfds
, dcs
):
504 for name
, vnfd
in vnfds
.iteritems():
505 vnfd
["dc"] = list(dcs
.itervalues())[0]
508 class RoundRobinDcPlacement(object):
510 Placement: Distribute VNFs across all available DCs in a round robin fashion.
512 def place(self
, nsd
, vnfds
, dcs
):
514 dcs_list
= list(dcs
.itervalues())
515 for name
, vnfd
in vnfds
.iteritems():
516 vnfd
["dc"] = dcs_list
[c
% len(dcs_list
)]
517 c
+= 1 # inc. c to use next DC
523 Resource definitions and API endpoints
527 class Packages(fr
.Resource
):
531 Upload a *.son service package to the dummy gatekeeper.
533 We expect request with a *.son file and store it in UPLOAD_FOLDER
539 # lets search for the package in the request
540 if "package" in request
.files
:
541 son_file
= request
.files
["package"]
542 # elif "file" in request.files:
543 # son_file = request.files["file"]
545 return {"service_uuid": None, "size": 0, "sha1": None, "error": "upload failed. file not found."}, 500
546 # generate a uuid to reference this package
547 service_uuid
= str(uuid
.uuid4())
548 file_hash
= hashlib
.sha1(str(son_file
)).hexdigest()
549 # ensure that upload folder exists
550 ensure_dir(UPLOAD_FOLDER
)
551 upload_path
= os
.path
.join(UPLOAD_FOLDER
, "%s.son" % service_uuid
)
552 # store *.son file to disk
553 son_file
.save(upload_path
)
554 size
= os
.path
.getsize(upload_path
)
555 # create a service object and register it
556 s
= Service(service_uuid
, file_hash
, upload_path
)
557 GK
.register_service_package(service_uuid
, s
)
558 # generate the JSON result
559 return {"service_uuid": service_uuid
, "size": size
, "sha1": file_hash
, "error": None}
560 except Exception as ex
:
561 LOG
.exception("Service package upload failed:")
562 return {"service_uuid": None, "size": 0, "sha1": None, "error": "upload failed"}, 500
566 Return a list of UUID's of uploaded service packages.
569 LOG
.info("GET /packages")
570 return {"service_uuid_list": list(GK
.services
.iterkeys())}
573 class Instantiations(fr
.Resource
):
577 Instantiate a service specified by its UUID.
578 Will return a new UUID to identify the running service instance.
581 # try to extract the service uuid from the request
582 json_data
= request
.get_json(force
=True)
583 service_uuid
= json_data
.get("service_uuid")
585 # lets be a bit fuzzy here to make testing easier
586 if service_uuid
is None and len(GK
.services
) > 0:
587 # if we don't get a service uuid, we simple start the first service in the list
588 service_uuid
= list(GK
.services
.iterkeys())[0]
590 if service_uuid
in GK
.services
:
591 # ok, we have a service uuid, lets start the service
592 service_instance_uuid
= GK
.services
.get(service_uuid
).start_service()
593 return {"service_instance_uuid": service_instance_uuid
}
594 return "Service not found", 404
598 Returns a list of UUIDs containing all running services.
601 LOG
.info("GET /instantiations")
602 return {"service_instantiations_list": [
603 list(s
.instances
.iterkeys()) for s
in GK
.services
.itervalues()]}
606 # create a single, global GK object
609 app
= Flask(__name__
)
610 app
.config
['MAX_CONTENT_LENGTH'] = 512 * 1024 * 1024 # 512 MB max upload
613 api
.add_resource(Packages
, '/packages')
614 api
.add_resource(Instantiations
, '/instantiations')
617 def start_rest_api(host
, port
, datacenters
=dict()):
619 # start the Flask server (not the best performance but ok for our use case)
623 use_reloader
=False # this is needed to run Flask in a non-main thread
627 def ensure_dir(name
):
628 if not os
.path
.exists(name
):
633 with
open(path
, "r") as f
:
636 except yaml
.YAMLError
as exc
:
637 LOG
.exception("YAML parse error")
642 def make_relative_path(path
):
643 if path
.startswith("file://"):
644 path
= path
.replace("file://", "", 1)
645 if path
.startswith("/"):
646 path
= path
.replace("/", "", 1)
650 def generate_lan_string(prefix
, base
, subnet_size
=24, ip
=0):
652 Helper to generate different network configuration strings.
654 r
= "%s.%d.%d/%d" % (prefix
, base
, ip
, subnet_size
)
658 def generate_subnet_strings(n
, start
=1, subnet_size
=24, ip
=0):
660 Helper to generate different network configuration strings.
663 for i
in range(start
, start
+ n
):
664 r
.append("%d.0.0.%d/%d" % (i
, ip
, subnet_size
))
668 if __name__
== '__main__':
670 Lets allow to run the API in standalone mode.
672 GK_STANDALONE_MODE
= True
673 logging
.getLogger("werkzeug").setLevel(logging
.INFO
)
674 start_rest_api("0.0.0.0", 8000)