12 # FIXME: this should load the juju inside or modules without having to
13 # explicitly install it. Check why it's not working.
14 # Load our subtree of the juju library
15 path
= os
.path
.abspath(os
.path
.join(os
.path
.dirname(__file__
), '..'))
16 path
= os
.path
.join(path
, "modules/libjuju/")
17 if path
not in sys
.path
:
18 sys
.path
.insert(1, path
)
20 from juju
.controller
import Controller
21 from juju
.model
import ModelObserver
22 from juju
.errors
import JujuAPIError
24 # We might need this to connect to the websocket securely, but test and verify.
26 ssl
._create
_default
_https
_context
= ssl
._create
_unverified
_context
27 except AttributeError:
28 # Legacy Python doesn't verify by default (see pep-0476)
29 # https://www.python.org/dev/peps/pep-0476/
34 class JujuCharmNotFound(Exception):
35 """The Charm can't be found or is not readable."""
38 class JujuApplicationExists(Exception):
39 """The Application already exists."""
42 class N2VCPrimitiveExecutionFailed(Exception):
43 """Something failed while attempting to execute a primitive."""
46 # Quiet the debug logging
47 logging
.getLogger('websockets.protocol').setLevel(logging
.INFO
)
48 logging
.getLogger('juju.client.connection').setLevel(logging
.WARN
)
49 logging
.getLogger('juju.model').setLevel(logging
.WARN
)
50 logging
.getLogger('juju.machine').setLevel(logging
.WARN
)
53 class VCAMonitor(ModelObserver
):
54 """Monitor state changes within the Juju Model."""
59 def __init__(self
, ns_name
):
60 self
.log
= logging
.getLogger(__name__
)
62 self
.ns_name
= ns_name
64 def AddApplication(self
, application_name
, callback
, *callback_args
):
65 if application_name
not in self
.applications
:
66 self
.applications
[application_name
] = {
68 'callback_args': callback_args
71 def RemoveApplication(self
, application_name
):
72 if application_name
in self
.applications
:
73 del self
.applications
[application_name
]
75 async def on_change(self
, delta
, old
, new
, model
):
76 """React to changes in the Juju model."""
78 if delta
.entity
== "unit":
79 # Ignore change events from other applications
80 if delta
.data
['application'] not in self
.applications
.keys():
85 application_name
= delta
.data
['application']
87 callback
= self
.applications
[application_name
]['callback']
89 self
.applications
[application_name
]['callback_args']
92 # Fire off a callback with the application state
96 delta
.data
['application'],
98 new
.workload_status_message
,
102 # This is a charm being removed
106 delta
.data
['application'],
110 except Exception as e
:
111 self
.log
.debug("[1] notify_callback exception: {}".format(e
))
113 elif delta
.entity
== "action":
114 # TODO: Decide how we want to notify the user of actions
116 # uuid = delta.data['id'] # The Action's unique id
117 # msg = delta.data['message'] # The output of the action
119 # if delta.data['status'] == "pending":
120 # # The action is queued
122 # elif delta.data['status'] == "completed""
123 # # The action was successful
125 # elif delta.data['status'] == "failed":
126 # # The action failed.
134 # Create unique models per network service
135 # Document all public functions
150 :param vcaconfig dict A dictionary containing the VCA configuration
152 :param artifacts str The directory where charms required by a vnfd are
156 n2vc = N2VC(vcaconfig={
157 'secret': 'MzI3MDJhOTYxYmM0YzRjNTJiYmY1Yzdm',
159 'ip-address': '10.44.127.137',
161 'artifacts': '/path/to/charms'
165 # Initialize instance-level variables
168 self
.controller
= None
169 self
.connecting
= False
170 self
.authenticated
= False
179 self
.default_model
= None
193 self
.log
= logging
.getLogger(__name__
)
195 # Quiet websocket traffic
196 logging
.getLogger('websockets.protocol').setLevel(logging
.INFO
)
197 logging
.getLogger('juju.client.connection').setLevel(logging
.WARN
)
198 logging
.getLogger('model').setLevel(logging
.WARN
)
199 # logging.getLogger('websockets.protocol').setLevel(logging.DEBUG)
201 self
.log
.debug('JujuApi: instantiated')
207 if user
.startswith('user-'):
210 self
.user
= 'user-{}'.format(user
)
212 self
.endpoint
= '%s:%d' % (server
, int(port
))
214 self
.artifacts
= artifacts
216 self
.loop
= loop
or asyncio
.get_event_loop()
219 """Close any open connections."""
222 def notify_callback(self
, model_name
, application_name
, status
, message
,
223 callback
=None, *callback_args
):
232 except Exception as e
:
233 self
.log
.error("[0] notify_callback exception {}".format(e
))
238 async def CreateNetworkService(self
, nsd
):
239 """Create a new model to encapsulate this network service.
241 Create a new model in the Juju controller to encapsulate the
242 charms associated with a network service.
244 You can pass either the nsd record or the id of the network
245 service, but this method will fail without one of them.
247 if not self
.authenticated
:
250 # Ideally, we will create a unique model per network service.
251 # This change will require all components, i.e., LCM and SO, to use
252 # N2VC for 100% compatibility. If we adopt unique models for the LCM,
253 # services deployed via LCM would't be manageable via SO and vice versa
255 return self
.default_model
257 async def Relate(self
, ns_name
, vnfd
):
258 """Create a relation between the charm-enabled VDUs in a VNF.
260 The Relation mapping has two parts: the id of the vdu owning the endpoint, and the name of the endpoint.
265 - provides: dataVM:db
268 This tells N2VC that the charm referred to by the dataVM vdu offers a relation named 'db', and the mgmtVM vdu has an 'app' endpoint that should be connected to a database.
270 :param str ns_name: The name of the network service.
271 :param dict vnfd: The parsed yaml VNF descriptor.
274 # Currently, the call to Relate() is made automatically after the
275 # deployment of each charm; if the relation depends on a charm that
276 # hasn't been deployed yet, the call will fail silently. This will
277 # prevent an API breakage, with the intent of making this an explicitly
278 # required call in a more object-oriented refactor of the N2VC API.
281 vnf_config
= vnfd
.get("vnf-configuration")
283 juju
= vnf_config
['juju']
285 configs
.append(vnf_config
)
287 for vdu
in vnfd
['vdu']:
288 vdu_config
= vdu
.get('vdu-configuration')
290 juju
= vdu_config
['juju']
292 configs
.append(vdu_config
)
294 def _get_application_name(name
):
295 """Get the application name that's mapped to a vnf/vdu."""
297 vnf_name
= vnfd
['name']
299 for vdu
in vnfd
.get('vdu'):
300 # Compare the named portion of the relation to the vdu's id
301 if vdu
['id'] == name
:
302 application_name
= self
.FormatApplicationName(
305 str(vnf_member_index
),
307 return application_name
309 vnf_member_index
+= 1
313 # Loop through relations
316 if 'relation' in juju
:
317 for rel
in juju
['relation']:
320 # get the application name for the provides
321 (name
, endpoint
) = rel
['provides'].split(':')
322 application_name
= _get_application_name(name
)
324 provides
= "{}:{}".format(
329 # get the application name for thr requires
330 (name
, endpoint
) = rel
['requires'].split(':')
331 application_name
= _get_application_name(name
)
333 requires
= "{}:{}".format(
337 self
.log
.debug("Relation: {} <-> {}".format(
341 await self
.add_relation(
346 except Exception as e
:
347 self
.log
.debug("Exception: {}".format(e
))
351 async def DeployCharms(self
, model_name
, application_name
, vnfd
,
352 charm_path
, params
={}, machine_spec
={},
353 callback
=None, *callback_args
):
354 """Deploy one or more charms associated with a VNF.
356 Deploy the charm(s) referenced in a VNF Descriptor.
358 :param str model_name: The name of the network service.
359 :param str application_name: The name of the application
360 :param dict vnfd: The name of the application
361 :param str charm_path: The path to the Juju charm
362 :param dict params: A dictionary of runtime parameters
365 'rw_mgmt_ip': '1.2.3.4',
366 # Pass the initial-config-primitives section of the vnf or vdu
367 'initial-config-primitives': {...}
369 :param dict machine_spec: A dictionary describing the machine to
373 'hostname': '1.2.3.4',
374 'username': 'ubuntu',
376 :param obj callback: A callback function to receive status changes.
377 :param tuple callback_args: A list of arguments to be passed to the
381 ########################################################
382 # Verify the path to the charm exists and is readable. #
383 ########################################################
384 if not os
.path
.exists(charm_path
):
385 self
.log
.debug("Charm path doesn't exist: {}".format(charm_path
))
386 self
.notify_callback(
393 raise JujuCharmNotFound("No artifacts configured.")
395 ################################
396 # Login to the Juju controller #
397 ################################
398 if not self
.authenticated
:
399 self
.log
.debug("Authenticating with Juju")
402 ##########################################
403 # Get the model for this network service #
404 ##########################################
405 # TODO: In a point release, we will use a model per deployed network
406 # service. In the meantime, we will always use the 'default' model.
407 model_name
= 'default'
408 model
= await self
.get_model(model_name
)
410 ########################################
411 # Verify the application doesn't exist #
412 ########################################
413 app
= await self
.get_application(model
, application_name
)
415 raise JujuApplicationExists("Can't deploy application \"{}\" to model \"{}\" because it already exists.".format(application_name
, model_name
))
417 ################################################################
418 # Register this application with the model-level event monitor #
419 ################################################################
421 self
.monitors
[model_name
].AddApplication(
427 ########################################################
428 # Check for specific machine placement (native charms) #
429 ########################################################
431 if machine_spec
.keys():
432 if all(k
in machine_spec
for k
in ['hostname', 'username']):
433 # Get the path to the previously generated ssh private key.
434 # Machines we're manually provisioned must have N2VC's public
435 # key injected, so if we don't have a keypair, raise an error.
436 private_key_path
= ""
438 # Enlist the existing machine in Juju
439 machine
= await self
.model
.add_machine(
440 spec
='ssh:{}@{}:{}'.format(
446 # Set the machine id that the deploy below will use.
450 #######################################
451 # Get the initial charm configuration #
452 #######################################
455 if 'rw_mgmt_ip' in params
:
456 rw_mgmt_ip
= params
['rw_mgmt_ip']
458 if 'initial-config-primitive' not in params
:
459 params
['initial-config-primitive'] = {}
461 initial_config
= self
._get
_config
_from
_dict
(
462 params
['initial-config-primitive'],
463 {'<rw_mgmt_ip>': rw_mgmt_ip
}
466 self
.log
.debug("JujuApi: Deploying charm ({}) from {}".format(
472 ########################################################
473 # Deploy the charm and apply the initial configuration #
474 ########################################################
475 app
= await model
.deploy(
476 # We expect charm_path to be either the path to the charm on disk
477 # or in the format of cs:series/name
479 # This is the formatted, unique name for this charm
480 application_name
=application_name
,
481 # Proxy charms should use the current LTS. This will need to be
482 # changed for native charms.
484 # Apply the initial 'config' primitive during deployment
485 config
=initial_config
,
486 # Where to deploy the charm to.
490 # Map the vdu id<->app name,
492 await self
.Relate(model_name
, vnfd
)
494 # #######################################
495 # # Execute initial config primitive(s) #
496 # #######################################
497 uuids
= await self
.ExecuteInitialPrimitives(
506 # # Build a sequential list of the primitives to execute
507 # for primitive in params['initial-config-primitive']:
509 # if primitive['name'] == 'config':
510 # # This is applied when the Application is deployed
513 # seq = primitive['seq']
516 # if 'parameter' in primitive:
517 # params = primitive['parameter']
519 # primitives[seq] = {
520 # 'name': primitive['name'],
521 # 'parameters': self._map_primitive_parameters(
523 # {'<rw_mgmt_ip>': rw_mgmt_ip}
527 # for primitive in sorted(primitives):
528 # await self.ExecutePrimitive(
531 # primitives[primitive]['name'],
534 # **primitives[primitive]['parameters'],
536 # except N2VCPrimitiveExecutionFailed as e:
538 # "[N2VC] Exception executing primitive: {}".format(e)
542 async def GetPrimitiveStatus(self
, model_name
, uuid
):
543 """Get the status of an executed Primitive.
545 The status of an executed Primitive will be one of three values:
552 if not self
.authenticated
:
555 # FIXME: This is hard-coded until model-per-ns is added
556 model_name
= 'default'
558 model
= await self
.get_model(model_name
)
560 results
= await model
.get_action_status(uuid
)
563 status
= results
[uuid
]
565 except Exception as e
:
567 "Caught exception while getting primitive status: {}".format(e
)
569 raise N2VCPrimitiveExecutionFailed(e
)
573 async def GetPrimitiveOutput(self
, model_name
, uuid
):
574 """Get the output of an executed Primitive.
576 Note: this only returns output for a successfully executed primitive.
580 if not self
.authenticated
:
583 # FIXME: This is hard-coded until model-per-ns is added
584 model_name
= 'default'
586 model
= await self
.get_model(model_name
)
587 results
= await model
.get_action_output(uuid
, 60)
588 except Exception as e
:
590 "Caught exception while getting primitive status: {}".format(e
)
592 raise N2VCPrimitiveExecutionFailed(e
)
596 # async def ProvisionMachine(self, model_name, hostname, username):
597 # """Provision machine for usage with Juju.
599 # Provisions a previously instantiated machine for use with Juju.
602 # if not self.authenticated:
605 # # FIXME: This is hard-coded until model-per-ns is added
606 # model_name = 'default'
608 # model = await self.get_model(model_name)
609 # model.add_machine(spec={})
611 # machine = await model.add_machine(spec='ssh:{}@{}:{}'.format(
618 # except Exception as e:
620 # "Caught exception while getting primitive status: {}".format(e)
622 # raise N2VCPrimitiveExecutionFailed(e)
624 def GetPrivateKeyPath(self
):
625 homedir
= os
.environ
['HOME']
626 sshdir
= "{}/.ssh".format(homedir
)
627 private_key_path
= "{}/id_n2vc_rsa".format(sshdir
)
628 return private_key_path
630 async def GetPublicKey(self
):
631 """Get the N2VC SSH public key.abs
633 Returns the SSH public key, to be injected into virtual machines to
634 be managed by the VCA.
636 The first time this is run, a ssh keypair will be created. The public
637 key is injected into a VM so that we can provision the machine with
638 Juju, after which Juju will communicate with the VM directly via the
643 # Find the path to where we expect our key to live.
644 homedir
= os
.environ
['HOME']
645 sshdir
= "{}/.ssh".format(homedir
)
646 if not os
.path
.exists(sshdir
):
649 private_key_path
= "{}/id_n2vc_rsa".format(sshdir
)
650 public_key_path
= "{}.pub".format(private_key_path
)
652 # If we don't have a key generated, generate it.
653 if not os
.path
.exists(private_key_path
):
654 cmd
= "ssh-keygen -t {} -b {} -N '' -f {}".format(
659 subprocess
.check_output(shlex
.split(cmd
))
661 # Read the public key
662 with
open(public_key_path
, "r") as f
:
663 public_key
= f
.readline()
667 async def ExecuteInitialPrimitives(self
, model_name
, application_name
,
668 params
, callback
=None, *callback_args
):
669 """Execute multiple primitives.
671 Execute multiple primitives as declared in initial-config-primitive.
672 This is useful in cases where the primitives initially failed -- for
673 example, if the charm is a proxy but the proxy hasn't been configured
679 # Build a sequential list of the primitives to execute
680 for primitive
in params
['initial-config-primitive']:
682 if primitive
['name'] == 'config':
685 seq
= primitive
['seq']
688 if 'parameter' in primitive
:
689 params
= primitive
['parameter']
692 'name': primitive
['name'],
693 'parameters': self
._map
_primitive
_parameters
(
695 {'<rw_mgmt_ip>': None}
699 for primitive
in sorted(primitives
):
701 await self
.ExecutePrimitive(
704 primitives
[primitive
]['name'],
707 **primitives
[primitive
]['parameters'],
710 except N2VCPrimitiveExecutionFailed
as e
:
712 "[N2VC] Exception executing primitive: {}".format(e
)
717 async def ExecutePrimitive(self
, model_name
, application_name
, primitive
,
718 callback
, *callback_args
, **params
):
719 """Execute a primitive of a charm for Day 1 or Day 2 configuration.
721 Execute a primitive defined in the VNF descriptor.
723 :param str model_name: The name of the network service.
724 :param str application_name: The name of the application
725 :param str primitive: The name of the primitive to execute.
726 :param obj callback: A callback function to receive status changes.
727 :param tuple callback_args: A list of arguments to be passed to the
729 :param dict params: A dictionary of key=value pairs representing the
730 primitive's parameters
733 'rw_mgmt_ip': '1.2.3.4',
734 # Pass the initial-config-primitives section of the vnf or vdu
735 'initial-config-primitives': {...}
738 self
.log
.debug("Executing {}".format(primitive
))
741 if not self
.authenticated
:
744 # FIXME: This is hard-coded until model-per-ns is added
745 model_name
= 'default'
747 model
= await self
.get_model(model_name
)
749 if primitive
== 'config':
750 # config is special, and expecting params to be a dictionary
751 await self
.set_config(
757 app
= await self
.get_application(model
, application_name
)
759 # Run against the first (and probably only) unit in the app
762 action
= await unit
.run_action(primitive
, **params
)
764 except Exception as e
:
766 "Caught exception while executing primitive: {}".format(e
)
768 raise N2VCPrimitiveExecutionFailed(e
)
771 async def RemoveCharms(self
, model_name
, application_name
, callback
=None,
773 """Remove a charm from the VCA.
775 Remove a charm referenced in a VNF Descriptor.
777 :param str model_name: The name of the network service.
778 :param str application_name: The name of the application
779 :param obj callback: A callback function to receive status changes.
780 :param tuple callback_args: A list of arguments to be passed to the
784 if not self
.authenticated
:
787 model
= await self
.get_model(model_name
)
788 app
= await self
.get_application(model
, application_name
)
790 # Remove this application from event monitoring
791 self
.monitors
[model_name
].RemoveApplication(application_name
)
793 # self.notify_callback(model_name, application_name, "removing", callback, *callback_args)
795 "Removing the application {}".format(application_name
)
799 # Notify the callback that this charm has been removed.
800 self
.notify_callback(
808 except Exception as e
:
809 print("Caught exception: {}".format(e
))
813 async def DestroyNetworkService(self
, nsd
):
814 raise NotImplementedError()
816 async def GetMetrics(self
, model_name
, application_name
):
817 """Get the metrics collected by the VCA.
819 :param model_name The name of the model
820 :param application_name The name of the application
823 model
= await self
.get_model(model_name
)
824 app
= await self
.get_application(model
, application_name
)
826 metrics
= await app
.get_metrics()
830 async def HasApplication(self
, model_name
, application_name
):
831 model
= await self
.get_model(model_name
)
832 app
= await self
.get_application(model
, application_name
)
838 async def add_relation(self
, model_name
, relation1
, relation2
):
840 Add a relation between two application endpoints.
842 :param str model_name Name of the network service.
843 :param str relation1 '<application>[:<relation_name>]'
844 :param str relation12 '<application>[:<relation_name>]'
847 if not self
.authenticated
:
850 m
= await self
.get_model(model_name
)
852 await m
.add_relation(relation1
, relation2
)
853 except JujuAPIError
as e
:
854 # If one of the applications in the relationship doesn't exist,
855 # or the relation has already been added, let the operation fail
857 if 'not found' in e
.message
:
859 if 'already exists' in e
.message
:
864 # async def apply_config(self, config, application):
865 # """Apply a configuration to the application."""
866 # print("JujuApi: Applying configuration to {}.".format(
869 # return await self.set_config(application=application, config=config)
871 def _get_config_from_dict(self
, config_primitive
, values
):
872 """Transform the yang config primitive to dict.
881 for primitive
in config_primitive
:
882 if primitive
['name'] == 'config':
883 # config = self._map_primitive_parameters()
884 for parameter
in primitive
['parameter']:
885 param
= str(parameter
['name'])
886 if parameter
['value'] == "<rw_mgmt_ip>":
887 config
[param
] = str(values
[parameter
['value']])
889 config
[param
] = str(parameter
['value'])
893 def _map_primitive_parameters(self
, parameters
, values
):
895 for parameter
in parameters
:
896 param
= str(parameter
['name'])
899 # Typecast parameter value, if present
900 if 'data-type' in parameter
:
901 paramtype
= str(parameter
['data-type']).lower()
903 if paramtype
== "integer":
904 value
= int(parameter
['value'])
905 elif paramtype
== "boolean":
906 value
= bool(parameter
['value'])
908 value
= str(parameter
['value'])
910 if parameter
['value'] == "<rw_mgmt_ip>":
911 params
[param
] = str(values
[parameter
['value']])
913 params
[param
] = value
916 def _get_config_from_yang(self
, config_primitive
, values
):
917 """Transform the yang config primitive to dict."""
919 for primitive
in config_primitive
.values():
920 if primitive
['name'] == 'config':
921 for parameter
in primitive
['parameter'].values():
922 param
= str(parameter
['name'])
923 if parameter
['value'] == "<rw_mgmt_ip>":
924 config
[param
] = str(values
[parameter
['value']])
926 config
[param
] = str(parameter
['value'])
930 def FormatApplicationName(self
, *args
):
932 Generate a Juju-compatible Application name
934 :param args tuple: Positional arguments to be used to construct the
938 - Only accepts characters a-z and non-consequitive dashes (-)
939 - Application name should not exceed 50 characters
943 FormatApplicationName("ping_pong_ns", "ping_vnf", "a")
946 for c
in "-".join(list(args
)):
949 elif not c
.isalpha():
952 return re
.sub('\-+', '-', appname
.lower())
954 # def format_application_name(self, nsd_name, vnfr_name, member_vnf_index=0):
955 # """Format the name of the application
958 # - Only accepts characters a-z and non-consequitive dashes (-)
959 # - Application name should not exceed 50 characters
961 # name = "{}-{}-{}".format(nsd_name, vnfr_name, member_vnf_index)
965 # c = chr(97 + int(c))
966 # elif not c.isalpha():
969 # return re.sub('\-+', '-', new_name.lower())
971 def format_model_name(self
, name
):
972 """Format the name of model.
974 Model names may only contain lowercase letters, digits and hyphens
977 return name
.replace('_', '-').lower()
979 async def get_application(self
, model
, application
):
980 """Get the deployed application."""
981 if not self
.authenticated
:
985 if application
and model
:
986 if model
.applications
:
987 if application
in model
.applications
:
988 app
= model
.applications
[application
]
992 async def get_model(self
, model_name
='default'):
993 """Get a model from the Juju Controller.
995 Note: Model objects returned must call disconnected() before it goes
997 if not self
.authenticated
:
1000 if model_name
not in self
.models
:
1001 self
.models
[model_name
] = await self
.controller
.get_model(
1004 self
.refcount
['model'] += 1
1006 # Create an observer for this model
1007 self
.monitors
[model_name
] = VCAMonitor(model_name
)
1008 self
.models
[model_name
].add_observer(self
.monitors
[model_name
])
1010 return self
.models
[model_name
]
1012 async def login(self
):
1013 """Login to the Juju controller."""
1015 if self
.authenticated
:
1018 self
.connecting
= True
1020 self
.log
.debug("JujuApi: Logging into controller")
1023 self
.controller
= Controller(loop
=self
.loop
)
1027 "Connecting to controller... ws://{}:{} as {}/{}".format(
1034 await self
.controller
.connect(
1035 endpoint
=self
.endpoint
,
1037 password
=self
.secret
,
1040 self
.refcount
['controller'] += 1
1042 # current_controller no longer exists
1043 # self.log.debug("Connecting to current controller...")
1044 # await self.controller.connect_current()
1045 # await self.controller.connect(
1046 # endpoint=self.endpoint,
1047 # username=self.user,
1050 self
.log
.fatal("VCA credentials not configured.")
1052 self
.authenticated
= True
1053 self
.log
.debug("JujuApi: Logged into controller")
1055 async def logout(self
):
1056 """Logout of the Juju controller."""
1057 if not self
.authenticated
:
1061 if self
.default_model
:
1062 self
.log
.debug("Disconnecting model {}".format(
1065 await self
.default_model
.disconnect()
1066 self
.refcount
['model'] -= 1
1067 self
.default_model
= None
1069 for model
in self
.models
:
1070 await self
.models
[model
].disconnect()
1071 self
.refcount
['model'] -= 1
1072 self
.models
[model
] = None
1075 self
.log
.debug("Disconnecting controller {}".format(
1078 await self
.controller
.disconnect()
1079 self
.refcount
['controller'] -= 1
1080 self
.controller
= None
1082 self
.authenticated
= False
1084 self
.log
.debug(self
.refcount
)
1086 except Exception as e
:
1088 "Fatal error logging out of Juju Controller: {}".format(e
)
1092 # async def remove_application(self, name):
1093 # """Remove the application."""
1094 # if not self.authenticated:
1095 # await self.login()
1097 # app = await self.get_application(name)
1099 # self.log.debug("JujuApi: Destroying application {}".format(
1103 # await app.destroy()
1105 async def remove_relation(self
, a
, b
):
1107 Remove a relation between two application endpoints
1109 :param a An application endpoint
1110 :param b An application endpoint
1112 if not self
.authenticated
:
1115 m
= await self
.get_model()
1117 m
.remove_relation(a
, b
)
1119 await m
.disconnect()
1121 async def resolve_error(self
, application
=None):
1122 """Resolve units in error state."""
1123 if not self
.authenticated
:
1126 app
= await self
.get_application(self
.default_model
, application
)
1129 "JujuApi: Resolving errors for application {}".format(
1134 for unit
in app
.units
:
1135 app
.resolved(retry
=True)
1137 async def run_action(self
, application
, action_name
, **params
):
1138 """Execute an action and return an Action object."""
1139 if not self
.authenticated
:
1148 app
= await self
.get_application(self
.default_model
, application
)
1150 # We currently only have one unit per application
1151 # so use the first unit available.
1155 "JujuApi: Running Action {} against Application {}".format(
1161 action
= await unit
.run_action(action_name
, **params
)
1163 # Wait for the action to complete
1166 result
['status'] = action
.status
1167 result
['action']['tag'] = action
.data
['id']
1168 result
['action']['results'] = action
.results
1172 async def set_config(self
, model_name
, application
, config
):
1173 """Apply a configuration to the application."""
1174 if not self
.authenticated
:
1177 app
= await self
.get_application(model_name
, application
)
1179 self
.log
.debug("JujuApi: Setting config for Application {}".format(
1182 await app
.set_config(config
)
1184 # Verify the config is set
1185 newconf
= await app
.get_config()
1187 if config
[key
] != newconf
[key
]['value']:
1188 self
.log
.debug("JujuApi: Config not set! Key {} Value {} doesn't match {}".format(key
, config
[key
], newconf
[key
]))
1190 # async def set_parameter(self, parameter, value, application=None):
1191 # """Set a config parameter for a service."""
1192 # if not self.authenticated:
1193 # await self.login()
1195 # self.log.debug("JujuApi: Setting {}={} for Application {}".format(
1200 # return await self.apply_config(
1201 # {parameter: value},
1202 # application=application,
1205 async def wait_for_application(self
, model_name
, application_name
,
1207 """Wait for an application to become active."""
1208 if not self
.authenticated
:
1211 # TODO: In a point release, we will use a model per deployed network
1212 # service. In the meantime, we will always use the 'default' model.
1213 model_name
= 'default'
1214 model
= await self
.get_model(model_name
)
1216 app
= await self
.get_application(model
, application_name
)
1217 self
.log
.debug("Application: {}".format(app
))
1218 # app = await self.get_application(model_name, application_name)
1221 "JujuApi: Waiting {} seconds for Application {}".format(
1227 await model
.block_until(
1229 unit
.agent_status
== 'idle' and unit
.workload_status
in
1230 ['active', 'unknown'] for unit
in app
.units