1 # Copyright 2019 Canonical Ltd.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
22 from juju
.controller
import Controller
23 from juju
.model
import Model
24 from n2vc
.exceptions
import K8sException
25 from n2vc
.k8s_conn
import K8sConnector
27 from .exceptions
import MethodNotImplemented
30 # from juju.bundle import BundleHandler
33 # from .vnf import N2VC
34 class K8sJujuConnector(K8sConnector
):
39 kubectl_command
: str = "/usr/bin/kubectl",
40 juju_command
: str = "/usr/bin/juju",
46 :param kubectl_command: path to kubectl executable
47 :param helm_command: path to helm executable
48 :param fs: file system for kubernetes and helm configuration
53 K8sConnector
.__init
__(
54 self
, db
, log
=log
, on_update_db
=on_update_db
,
58 self
.log
.debug("Initializing K8S Juju connector")
60 self
.authenticated
= False
63 self
.juju_command
= juju_command
66 self
.log
.debug("K8S Juju connector initialized")
73 namespace
: str = "kube-system",
74 reuse_cluster_uuid
: str = None,
77 It prepares a given K8s cluster environment to run Juju bundles.
79 :param k8s_creds: credentials to access a given K8s cluster, i.e. a valid
81 :param namespace: optional namespace to be used for juju. By default,
82 'kube-system' will be used
83 :param reuse_cluster_uuid: existing cluster uuid for reuse
84 :return: uuid of the K8s cluster and True if connector has installed some
85 software in the cluster
86 (on error, an exception will be raised)
91 Bootstrapping cannot be done, by design, through the API. We need to
98 1. Has the environment already been bootstrapped?
99 - Check the database to see if we have a record for this env
101 2. If this is a new env, create it
102 - Add the k8s cloud to Juju
104 - Record it in the database
106 3. Connect to the Juju controller for this cloud
109 # cluster_uuid = reuse_cluster_uuid
110 # if not cluster_uuid:
111 # cluster_uuid = str(uuid4())
113 ##################################################
114 # TODO: Pull info from db based on the namespace #
115 ##################################################
117 ###################################################
118 # TODO: Make it idempotent, calling add-k8s and #
119 # bootstrap whenever reuse_cluster_uuid is passed #
121 # `init_env` is called to initialize the K8s #
122 # cluster for juju. If this initialization fails, #
123 # it can be called again by LCM with the param #
124 # reuse_cluster_uuid, e.g. to try to fix it. #
125 ###################################################
127 if not reuse_cluster_uuid
:
128 # This is a new cluster, so bootstrap it
130 cluster_uuid
= str(uuid
.uuid4())
132 # Is a local k8s cluster?
133 localk8s
= self
.is_local_k8s(k8s_creds
)
135 # If the k8s is external, the juju controller needs a loadbalancer
136 loadbalancer
= False if localk8s
else True
138 # Name the new k8s cloud
139 k8s_cloud
= "k8s-{}".format(cluster_uuid
)
141 self
.log
.debug("Adding k8s cloud {}".format(k8s_cloud
))
142 await self
.add_k8s(k8s_cloud
, k8s_creds
)
144 # Bootstrap Juju controller
145 self
.log
.debug("Bootstrapping...")
146 await self
.bootstrap(k8s_cloud
, cluster_uuid
, loadbalancer
)
147 self
.log
.debug("Bootstrap done.")
149 # Get the controller information
151 # Parse ~/.local/share/juju/controllers.yaml
152 # controllers.testing.api-endpoints|ca-cert|uuid
153 self
.log
.debug("Getting controller endpoints")
154 with
open(os
.path
.expanduser("~/.local/share/juju/controllers.yaml")) as f
:
155 controllers
= yaml
.load(f
, Loader
=yaml
.Loader
)
156 controller
= controllers
["controllers"][cluster_uuid
]
157 endpoints
= controller
["api-endpoints"]
158 self
.juju_endpoint
= endpoints
[0]
159 self
.juju_ca_cert
= controller
["ca-cert"]
161 # Parse ~/.local/share/juju/accounts
162 # controllers.testing.user|password
163 self
.log
.debug("Getting accounts")
164 with
open(os
.path
.expanduser("~/.local/share/juju/accounts.yaml")) as f
:
165 controllers
= yaml
.load(f
, Loader
=yaml
.Loader
)
166 controller
= controllers
["controllers"][cluster_uuid
]
168 self
.juju_user
= controller
["user"]
169 self
.juju_secret
= controller
["password"]
171 # raise Exception("EOL")
173 self
.juju_public_key
= None
176 "endpoint": self
.juju_endpoint
,
177 "username": self
.juju_user
,
178 "secret": self
.juju_secret
,
179 "cacert": self
.juju_ca_cert
,
180 "namespace": namespace
,
181 "loadbalancer": loadbalancer
,
184 # Store the cluster configuration so it
185 # can be used for subsequent calls
186 self
.log
.debug("Setting config")
187 await self
.set_config(cluster_uuid
, config
)
190 # This is an existing cluster, so get its config
191 cluster_uuid
= reuse_cluster_uuid
193 config
= self
.get_config(cluster_uuid
)
195 self
.juju_endpoint
= config
["endpoint"]
196 self
.juju_user
= config
["username"]
197 self
.juju_secret
= config
["secret"]
198 self
.juju_ca_cert
= config
["cacert"]
199 self
.juju_public_key
= None
201 # Login to the k8s cluster
202 if not self
.authenticated
:
203 await self
.login(cluster_uuid
)
205 # We're creating a new cluster
206 # print("Getting model {}".format(self.get_namespace(cluster_uuid),
207 # cluster_uuid=cluster_uuid))
208 # model = await self.get_model(
209 # self.get_namespace(cluster_uuid),
210 # cluster_uuid=cluster_uuid
213 # Disconnect from the model
214 # if model and model.is_connected():
215 # await model.disconnect()
217 return cluster_uuid
, True
219 """Repo Management"""
222 self
, name
: str, url
: str, _type
: str = "charm",
224 raise MethodNotImplemented()
226 async def repo_list(self
):
227 raise MethodNotImplemented()
229 async def repo_remove(
232 raise MethodNotImplemented()
234 async def synchronize_repos(self
, cluster_uuid
: str, name
: str):
236 Returns None as currently add_repo is not implemented
243 self
, cluster_uuid
: str, force
: bool = False, uninstall_sw
: bool = False
247 Resets the Kubernetes cluster by removing the model that represents it.
249 :param cluster_uuid str: The UUID of the cluster to reset
250 :return: Returns True if successful or raises an exception.
254 if not self
.authenticated
:
255 await self
.login(cluster_uuid
)
257 if self
.controller
.is_connected():
259 namespace
= self
.get_namespace(cluster_uuid
)
260 if await self
.has_model(namespace
):
261 self
.log
.debug("[reset] Destroying model")
262 await self
.controller
.destroy_model(namespace
, destroy_storage
=True)
264 # Disconnect from the controller
265 self
.log
.debug("[reset] Disconnecting controller")
268 # Destroy the controller (via CLI)
269 self
.log
.debug("[reset] Destroying controller")
270 await self
.destroy_controller(cluster_uuid
)
272 self
.log
.debug("[reset] Removing k8s cloud")
273 k8s_cloud
= "k8s-{}".format(cluster_uuid
)
274 await self
.remove_cloud(k8s_cloud
)
276 except Exception as ex
:
277 self
.log
.debug("Caught exception during reset: {}".format(ex
))
288 timeout
: float = 300,
290 db_dict
: dict = None,
291 kdu_name
: str = None,
292 namespace
: str = None,
296 :param cluster_uuid str: The UUID of the cluster to install to
297 :param kdu_model str: The name or path of a bundle to install
298 :param atomic bool: If set, waits until the model is active and resets
299 the cluster on failure.
300 :param timeout int: The time, in seconds, to wait for the install
302 :param params dict: Key-value pairs of instantiation parameters
303 :param kdu_name: Name of the KDU instance to be installed
304 :param namespace: K8s namespace to use for the KDU instance
306 :return: If successful, returns ?
309 if not self
.authenticated
:
310 self
.log
.debug("[install] Logging in to the controller")
311 await self
.login(cluster_uuid
)
314 # Get or create the model, based on the NS
317 kdu_instance
= "{}-{}".format(kdu_name
, db_dict
["filter"]["_id"])
319 kdu_instance
= db_dict
["filter"]["_id"]
321 self
.log
.debug("Checking for model named {}".format(kdu_instance
))
323 # Create the new model
324 self
.log
.debug("Adding model: {}".format(kdu_instance
))
325 model
= await self
.add_model(kdu_instance
, cluster_uuid
=cluster_uuid
)
328 # TODO: Instantiation parameters
331 "Juju bundle that models the KDU, in any of the following ways:
332 - <juju-repo>/<juju-bundle>
333 - <juju-bundle folder under k8s_models folder in the package>
334 - <juju-bundle tgz file (w/ or w/o extension) under k8s_models folder
336 - <URL_where_to_fetch_juju_bundle>
339 previous_workdir
= os
.getcwd()
342 if kdu_model
.startswith("cs:"):
344 elif kdu_model
.startswith("http"):
348 new_workdir
= kdu_model
.strip(kdu_model
.split("/")[-1])
350 os
.chdir(new_workdir
)
352 bundle
= "local:{}".format(kdu_model
)
355 # Raise named exception that the bundle could not be found
358 self
.log
.debug("[install] deploying {}".format(bundle
))
359 await model
.deploy(bundle
)
361 # Get the application
363 # applications = model.applications
364 self
.log
.debug("[install] Applications: {}".format(model
.applications
))
365 for name
in model
.applications
:
366 self
.log
.debug("[install] Waiting for {} to settle".format(name
))
367 application
= model
.applications
[name
]
369 # It's not enough to wait for all units to be active;
370 # the application status needs to be active as well.
371 self
.log
.debug("Waiting for all units to be active...")
372 await model
.block_until(
374 unit
.agent_status
== "idle"
375 and application
.status
in ["active", "unknown"]
376 and unit
.workload_status
in ["active", "unknown"]
377 for unit
in application
.units
381 self
.log
.debug("All units active.")
383 # TODO use asyncio.TimeoutError
384 except concurrent
.futures
._base
.TimeoutError
:
385 os
.chdir(previous_workdir
)
386 self
.log
.debug("[install] Timeout exceeded; resetting cluster")
387 await self
.reset(cluster_uuid
)
390 # Wait for the application to be active
391 if model
.is_connected():
392 self
.log
.debug("[install] Disconnecting model")
393 await model
.disconnect()
395 os
.chdir(previous_workdir
)
398 raise Exception("Unable to install")
400 async def instances_list(self
, cluster_uuid
: str) -> list:
402 returns a list of deployed releases in a cluster
404 :param cluster_uuid: the cluster
413 kdu_model
: str = None,
418 :param cluster_uuid str: The UUID of the cluster to upgrade
419 :param kdu_instance str: The unique name of the KDU instance
420 :param kdu_model str: The name or path of the bundle to upgrade to
421 :param params dict: Key-value pairs of instantiation parameters
423 :return: If successful, reference to the new revision number of the
427 # TODO: Loop through the bundle and upgrade each charm individually
430 The API doesn't have a concept of bundle upgrades, because there are
431 many possible changes: charm revision, disk, number of units, etc.
433 As such, we are only supporting a limited subset of upgrades. We'll
434 upgrade the charm revision but leave storage and scale untouched.
436 Scale changes should happen through OSM constructs, and changes to
437 storage would require a redeployment of the service, at least in this
440 namespace
= self
.get_namespace(cluster_uuid
)
441 model
= await self
.get_model(namespace
, cluster_uuid
=cluster_uuid
)
443 with
open(kdu_model
, "r") as f
:
444 bundle
= yaml
.safe_load(f
)
448 'description': 'Test bundle',
449 'bundle': 'kubernetes',
452 'charm': 'cs:~charmed-osm/mariadb-k8s-20',
455 'password': 'manopw',
456 'root_password': 'osm4u',
459 'series': 'kubernetes'
464 # TODO: This should be returned in an agreed-upon format
465 for name
in bundle
["applications"]:
466 self
.log
.debug(model
.applications
)
467 application
= model
.applications
[name
]
468 self
.log
.debug(application
)
470 path
= bundle
["applications"][name
]["charm"]
473 await application
.upgrade_charm(switch
=path
)
474 except juju
.errors
.JujuError
as ex
:
475 if "already running charm" in str(ex
):
476 # We're already running this version
479 await model
.disconnect()
482 raise MethodNotImplemented()
487 self
, cluster_uuid
: str, kdu_instance
: str, revision
: int = 0,
491 :param cluster_uuid str: The UUID of the cluster to rollback
492 :param kdu_instance str: The unique name of the KDU instance
493 :param revision int: The revision to revert to. If omitted, rolls back
494 the previous upgrade.
496 :return: If successful, returns the revision of active KDU instance,
497 or raises an exception
499 raise MethodNotImplemented()
503 async def uninstall(self
, cluster_uuid
: str, kdu_instance
: str) -> bool:
504 """Uninstall a KDU instance
506 :param cluster_uuid str: The UUID of the cluster
507 :param kdu_instance str: The unique name of the KDU instance
509 :return: Returns True if successful, or raises an exception
511 if not self
.authenticated
:
512 self
.log
.debug("[uninstall] Connecting to controller")
513 await self
.login(cluster_uuid
)
515 self
.log
.debug("[uninstall] Destroying model")
517 await self
.controller
.destroy_models(kdu_instance
)
519 self
.log
.debug("[uninstall] Model destroyed and disconnecting")
524 async def exec_primitive(
526 cluster_uuid
: str = None,
527 kdu_instance
: str = None,
528 primitive_name
: str = None,
529 timeout
: float = 300,
531 db_dict
: dict = None,
533 """Exec primitive (Juju action)
535 :param cluster_uuid str: The UUID of the cluster
536 :param kdu_instance str: The unique name of the KDU instance
537 :param primitive_name: Name of action that will be executed
538 :param timeout: Timeout for action execution
539 :param params: Dictionary of all the parameters needed for the action
540 :db_dict: Dictionary for any additional data
542 :return: Returns the output of the action
544 if not self
.authenticated
:
545 self
.log
.debug("[exec_primitive] Connecting to controller")
546 await self
.login(cluster_uuid
)
548 if not params
or "application-name" not in params
:
550 "Missing application-name argument, \
551 argument needed for K8s actions"
555 "[exec_primitive] Getting model "
556 "kdu_instance: {}".format(kdu_instance
)
559 model
= await self
.get_model(kdu_instance
, cluster_uuid
)
561 application_name
= params
["application-name"]
562 application
= model
.applications
[application_name
]
564 actions
= await application
.get_actions()
565 if primitive_name
not in actions
:
566 raise K8sException("Primitive {} not found".format(primitive_name
))
569 for u
in application
.units
:
570 if await u
.is_leader_from_status():
575 raise K8sException("No leader unit found to execute action")
577 self
.log
.debug("[exec_primitive] Running action: {}".format(primitive_name
))
578 action
= await unit
.run_action(primitive_name
, **params
)
580 output
= await model
.get_action_output(action_uuid
=action
.entity_id
)
581 status
= await model
.get_action_status(uuid_or_prefix
=action
.entity_id
)
584 status
[action
.entity_id
] if action
.entity_id
in status
else "failed"
587 if status
!= "completed":
589 "status is not completed: {} output: {}".format(status
, output
)
594 except Exception as e
:
595 error_msg
= "Error executing primitive {}: {}".format(primitive_name
, e
)
596 self
.log
.error(error_msg
)
597 raise K8sException(message
=error_msg
)
601 async def inspect_kdu(self
, kdu_model
: str,) -> dict:
604 Inspects a bundle and returns a dictionary of config parameters and
605 their default values.
607 :param kdu_model str: The name or path of the bundle to inspect.
609 :return: If successful, returns a dictionary of available parameters
610 and their default values.
614 with
open(kdu_model
, "r") as f
:
615 bundle
= yaml
.safe_load(f
)
619 'description': 'Test bundle',
620 'bundle': 'kubernetes',
623 'charm': 'cs:~charmed-osm/mariadb-k8s-20',
626 'password': 'manopw',
627 'root_password': 'osm4u',
630 'series': 'kubernetes'
635 # TODO: This should be returned in an agreed-upon format
636 kdu
= bundle
["applications"]
640 async def help_kdu(self
, kdu_model
: str,) -> str:
643 If available, returns the README of the bundle.
645 :param kdu_model str: The name or path of a bundle
647 :return: If found, returns the contents of the README.
651 files
= ["README", "README.txt", "README.md"]
652 path
= os
.path
.dirname(kdu_model
)
653 for file in os
.listdir(path
):
655 with
open(file, "r") as f
:
661 async def status_kdu(self
, cluster_uuid
: str, kdu_instance
: str,) -> dict:
662 """Get the status of the KDU
664 Get the current status of the KDU instance.
666 :param cluster_uuid str: The UUID of the cluster
667 :param kdu_instance str: The unique id of the KDU instance
669 :return: Returns a dictionary containing namespace, state, resources,
674 model
= await self
.get_model(
675 self
.get_namespace(cluster_uuid
), cluster_uuid
=cluster_uuid
678 # model = await self.get_model_by_uuid(cluster_uuid)
680 model_status
= await model
.get_status()
681 status
= model_status
.applications
683 for name
in model_status
.applications
:
684 application
= model_status
.applications
[name
]
685 status
[name
] = {"status": application
["status"]["status"]}
687 if model
.is_connected():
688 await model
.disconnect()
693 async def add_k8s(self
, cloud_name
: str, credentials
: str,) -> bool:
694 """Add a k8s cloud to Juju
696 Adds a Kubernetes cloud to Juju, so it can be bootstrapped with a
699 :param cloud_name str: The name of the cloud to add.
700 :param credentials dict: A dictionary representing the output of
701 `kubectl config view --raw`.
703 :returns: True if successful, otherwise raises an exception.
706 cmd
= [self
.juju_command
, "add-k8s", "--local", cloud_name
]
709 process
= await asyncio
.create_subprocess_exec(
711 stdout
=asyncio
.subprocess
.PIPE
,
712 stderr
=asyncio
.subprocess
.PIPE
,
713 stdin
=asyncio
.subprocess
.PIPE
,
716 # Feed the process the credentials
717 process
.stdin
.write(credentials
.encode("utf-8"))
718 await process
.stdin
.drain()
719 process
.stdin
.close()
721 _stdout
, stderr
= await process
.communicate()
723 return_code
= process
.returncode
725 self
.log
.debug("add-k8s return code: {}".format(return_code
))
728 raise Exception(stderr
)
732 async def add_model(self
, model_name
: str, cluster_uuid
: str,) -> Model
:
733 """Adds a model to the controller
735 Adds a new model to the Juju controller
737 :param model_name str: The name of the model to add.
738 :returns: The juju.model.Model object of the new model upon success or
741 if not self
.authenticated
:
742 await self
.login(cluster_uuid
)
745 "Adding model '{}' to cluster_uuid '{}'".format(model_name
, cluster_uuid
)
748 if self
.juju_public_key
is not None:
749 model
= await self
.controller
.add_model(
750 model_name
, config
={"authorized-keys": self
.juju_public_key
}
753 model
= await self
.controller
.add_model(model_name
)
754 except Exception as ex
:
756 self
.log
.debug("Caught exception: {}".format(ex
))
762 self
, cloud_name
: str, cluster_uuid
: str, loadbalancer
: bool
764 """Bootstrap a Kubernetes controller
766 Bootstrap a Juju controller inside the Kubernetes cluster
768 :param cloud_name str: The name of the cloud.
769 :param cluster_uuid str: The UUID of the cluster to bootstrap.
770 :param loadbalancer bool: If the controller should use loadbalancer or not.
771 :returns: True upon success or raises an exception.
775 cmd
= [self
.juju_command
, "bootstrap", cloud_name
, cluster_uuid
]
778 For public clusters, specify that the controller service is using a
787 "controller-service-type=loadbalancer",
791 "Bootstrapping controller {} in cloud {}".format(cluster_uuid
, cloud_name
)
794 process
= await asyncio
.create_subprocess_exec(
795 *cmd
, stdout
=asyncio
.subprocess
.PIPE
, stderr
=asyncio
.subprocess
.PIPE
,
798 _stdout
, stderr
= await process
.communicate()
800 return_code
= process
.returncode
804 if b
"already exists" not in stderr
:
805 raise Exception(stderr
)
809 async def destroy_controller(self
, cluster_uuid
: str) -> bool:
810 """Destroy a Kubernetes controller
812 Destroy an existing Kubernetes controller.
814 :param cluster_uuid str: The UUID of the cluster to bootstrap.
815 :returns: True upon success or raises an exception.
819 "destroy-controller",
820 "--destroy-all-models",
826 process
= await asyncio
.create_subprocess_exec(
827 *cmd
, stdout
=asyncio
.subprocess
.PIPE
, stderr
=asyncio
.subprocess
.PIPE
,
830 _stdout
, stderr
= await process
.communicate()
832 return_code
= process
.returncode
836 if "already exists" not in stderr
:
837 raise Exception(stderr
)
839 def get_config(self
, cluster_uuid
: str,) -> dict:
840 """Get the cluster configuration
842 Gets the configuration of the cluster
844 :param cluster_uuid str: The UUID of the cluster.
845 :return: A dict upon success, or raises an exception.
847 cluster_config
= "{}/{}.yaml".format(self
.fs
.path
, cluster_uuid
)
848 if os
.path
.exists(cluster_config
):
849 with
open(cluster_config
, "r") as f
:
850 config
= yaml
.safe_load(f
.read())
854 "Unable to locate configuration for cluster {}".format(cluster_uuid
)
857 async def get_model(self
, model_name
: str, cluster_uuid
: str,) -> Model
:
858 """Get a model from the Juju Controller.
860 Note: Model objects returned must call disconnected() before it goes
863 :param model_name str: The name of the model to get
864 :return The juju.model.Model object if found, or None.
866 if not self
.authenticated
:
867 await self
.login(cluster_uuid
)
870 models
= await self
.controller
.list_models()
871 if model_name
in models
:
872 self
.log
.debug("Found model: {}".format(model_name
))
873 model
= await self
.controller
.get_model(model_name
)
876 def get_namespace(self
, cluster_uuid
: str,) -> str:
877 """Get the namespace UUID
878 Gets the namespace's unique name
880 :param cluster_uuid str: The UUID of the cluster
881 :returns: The namespace UUID, or raises an exception
883 config
= self
.get_config(cluster_uuid
)
885 # Make sure the name is in the config
886 if "namespace" not in config
:
887 raise Exception("Namespace not found.")
889 # TODO: We want to make sure this is unique to the cluster, in case
890 # the cluster is being reused.
891 # Consider pre/appending the cluster id to the namespace string
892 return config
["namespace"]
894 async def has_model(self
, model_name
: str) -> bool:
895 """Check if a model exists in the controller
897 Checks to see if a model exists in the connected Juju controller.
899 :param model_name str: The name of the model
900 :return: A boolean indicating if the model exists
902 models
= await self
.controller
.list_models()
904 if model_name
in models
:
908 def is_local_k8s(self
, credentials
: str,) -> bool:
909 """Check if a cluster is local
911 Checks if a cluster is running in the local host
913 :param credentials dict: A dictionary containing the k8s credentials
914 :returns: A boolean if the cluster is running locally
916 creds
= yaml
.safe_load(credentials
)
917 if os
.getenv("OSMLCM_VCA_APIPROXY"):
918 host_ip
= os
.getenv("OSMLCM_VCA_APIPROXY")
920 if creds
and host_ip
:
921 for cluster
in creds
["clusters"]:
922 if "server" in cluster
["cluster"]:
923 if host_ip
in cluster
["cluster"]["server"]:
928 async def login(self
, cluster_uuid
):
929 """Login to the Juju controller."""
931 if self
.authenticated
:
934 self
.connecting
= True
936 # Test: Make sure we have the credentials loaded
937 config
= self
.get_config(cluster_uuid
)
939 self
.juju_endpoint
= config
["endpoint"]
940 self
.juju_user
= config
["username"]
941 self
.juju_secret
= config
["secret"]
942 self
.juju_ca_cert
= config
["cacert"]
943 self
.juju_public_key
= None
945 self
.controller
= Controller()
949 "Connecting to controller... ws://{} as {}/{}".format(
950 self
.juju_endpoint
, self
.juju_user
, self
.juju_secret
,
954 await self
.controller
.connect(
955 endpoint
=self
.juju_endpoint
,
956 username
=self
.juju_user
,
957 password
=self
.juju_secret
,
958 cacert
=self
.juju_ca_cert
,
960 self
.authenticated
= True
961 self
.log
.debug("JujuApi: Logged into controller")
962 except Exception as ex
:
964 self
.log
.debug("Caught exception: {}".format(ex
))
967 self
.log
.fatal("VCA credentials not configured.")
968 self
.authenticated
= False
970 async def logout(self
):
971 """Logout of the Juju controller."""
972 self
.log
.debug("[logout]")
973 if not self
.authenticated
:
976 for model
in self
.models
:
977 self
.log
.debug("Logging out of model {}".format(model
))
978 await self
.models
[model
].disconnect()
981 self
.log
.debug("Disconnecting controller {}".format(self
.controller
))
982 await self
.controller
.disconnect()
983 self
.controller
= None
985 self
.authenticated
= False
987 async def remove_cloud(self
, cloud_name
: str,) -> bool:
988 """Remove a k8s cloud from Juju
990 Removes a Kubernetes cloud from Juju.
992 :param cloud_name str: The name of the cloud to add.
994 :returns: True if successful, otherwise raises an exception.
997 # Remove the bootstrapped controller
998 cmd
= [self
.juju_command
, "remove-k8s", "--client", cloud_name
]
999 process
= await asyncio
.create_subprocess_exec(
1000 *cmd
, stdout
=asyncio
.subprocess
.PIPE
, stderr
=asyncio
.subprocess
.PIPE
,
1003 _stdout
, stderr
= await process
.communicate()
1005 return_code
= process
.returncode
1008 raise Exception(stderr
)
1010 # Remove the cloud from the local config
1011 cmd
= [self
.juju_command
, "remove-cloud", "--client", cloud_name
]
1012 process
= await asyncio
.create_subprocess_exec(
1013 *cmd
, stdout
=asyncio
.subprocess
.PIPE
, stderr
=asyncio
.subprocess
.PIPE
,
1016 _stdout
, stderr
= await process
.communicate()
1018 return_code
= process
.returncode
1021 raise Exception(stderr
)
1025 async def set_config(self
, cluster_uuid
: str, config
: dict,) -> bool:
1026 """Save the cluster configuration
1028 Saves the cluster information to the file store
1030 :param cluster_uuid str: The UUID of the cluster
1031 :param config dict: A dictionary containing the cluster configuration
1032 :returns: Boolean upon success or raises an exception.
1035 cluster_config
= "{}/{}.yaml".format(self
.fs
.path
, cluster_uuid
)
1036 if not os
.path
.exists(cluster_config
):
1037 self
.log
.debug("Writing config to {}".format(cluster_config
))
1038 with
open(cluster_config
, "w") as f
:
1039 f
.write(yaml
.dump(config
, Dumper
=yaml
.Dumper
))