# limitations under the License.
import asyncio
+from typing import Union
import os
import uuid
import yaml
db_uri = EnvironConfig(prefixes=["OSMLCM_", "OSMMON_"]).get("database_uri")
self._store = MotorStore(db_uri)
self.loading_libjuju = asyncio.Lock(loop=self.loop)
+ self.uninstall_locks = {}
self.log.debug("K8S Juju connector initialized")
# TODO: Remove these commented lines:
# if it fails in the middle of the process
cleanup_data = []
try:
+ self.log.debug("Initializing K8s cluster for juju")
kubectl.create_cluster_role(
name=metadata_name,
labels=labels,
)
+ self.log.debug("Cluster role created")
cleanup_data.append(
{
"delete": kubectl.delete_cluster_role,
- "args": (metadata_name),
+ "args": (metadata_name,),
}
)
name=metadata_name,
labels=labels,
)
+ self.log.debug("Service account created")
cleanup_data.append(
{
"delete": kubectl.delete_service_account,
- "args": (metadata_name),
+ "args": (metadata_name,),
}
)
name=metadata_name,
labels=labels,
)
+ self.log.debug("Role binding created")
cleanup_data.append(
{
"delete": kubectl.delete_service_account,
- "args": (metadata_name),
+ "args": (metadata_name,),
}
)
token, client_cert_data = await kubectl.get_secret_data(
)
default_storage_class = kubectl.get_default_storage_class()
+ self.log.debug("Default storage class: {}".format(default_storage_class))
await libjuju.add_k8s(
name=cluster_uuid,
rbac_id=rbac_id,
storage_class=default_storage_class,
credential_name=self._get_credential_name(cluster_uuid),
)
+ self.log.debug("K8s cluster added to juju controller")
return cluster_uuid, True
except Exception as e:
- self.log.error("Error initializing k8scluster: {}".format(e))
+ self.log.error("Error initializing k8scluster: {}".format(e), exc_info=True)
if len(cleanup_data) > 0:
self.log.debug("Cleaning up created resources in k8s cluster...")
for item in cleanup_data:
name: str,
url: str,
_type: str = "charm",
+ cert: str = None,
+ user: str = None,
+ password: str = None,
):
raise MethodNotImplemented()
raise K8sException("bundle must be set")
if bundle.startswith("cs:"):
+ # For Juju Bundles provided by the Charm Store
+ pass
+ elif bundle.startswith("ch:"):
+ # For Juju Bundles provided by the Charm Hub (this only works for juju version >= 2.9)
pass
elif bundle.startswith("http"):
# Download the file
os.chdir(new_workdir)
bundle = "local:{}".format(kdu_model)
- self.log.debug("Checking for model named {}".format(kdu_instance))
+ # default namespace to kdu_instance
+ if not namespace:
+ namespace = kdu_instance
+
+ self.log.debug("Checking for model named {}".format(namespace))
# Create the new model
- self.log.debug("Adding model: {}".format(kdu_instance))
+ self.log.debug("Adding model: {}".format(namespace))
cloud = Cloud(cluster_uuid, self._get_credential_name(cluster_uuid))
- await libjuju.add_model(kdu_instance, cloud)
+ await libjuju.add_model(namespace, cloud)
# if model:
# TODO: Instantiation parameters
previous_workdir = "/app/storage"
self.log.debug("[install] deploying {}".format(bundle))
- await libjuju.deploy(
- bundle, model_name=kdu_instance, wait=atomic, timeout=timeout
- )
+ await libjuju.deploy(bundle, model_name=namespace, wait=atomic, timeout=timeout)
os.chdir(previous_workdir)
+
+ # update information in the database (first, the VCA status, and then, the namespace)
if self.on_update_db:
await self.on_update_db(
cluster_uuid,
filter=db_dict["filter"],
vca_id=kwargs.get("vca_id"),
)
+
+ self.db.set_one(
+ table="nsrs",
+ q_filter={"_admin.deployed.K8s.kdu-instance": kdu_instance},
+ update_dict={"_admin.deployed.K8s.$.namespace": namespace},
+ )
+
return True
async def scale(
scale: int,
resource_name: str,
total_timeout: float = 1800,
+ namespace: str = None,
**kwargs,
) -> bool:
"""Scale an application in a model
:param: kdu_instance str: KDU instance name
- :param: scale int: Scale to which to set this application
- :param: resource_name str: Resource name (Application name)
+ :param: scale int: Scale to which to set the application
+ :param: resource_name str: The application name in the Juju Bundle
:param: timeout float: The time, in seconds, to wait for the install
to finish
+ :param namespace str: The namespace (model) where the Bundle was deployed
:param kwargs: Additional parameters
vca_id (str): VCA ID
:return: If successful, returns True
"""
+ model_name = self._obtain_namespace(
+ kdu_instance=kdu_instance, namespace=namespace
+ )
try:
libjuju = await self._get_libjuju(kwargs.get("vca_id"))
await libjuju.scale_application(
- model_name=kdu_instance,
+ model_name=model_name,
application_name=resource_name,
scale=scale,
total_timeout=total_timeout,
)
except Exception as e:
- error_msg = "Error scaling application {} in kdu instance {}: {}".format(
- resource_name, kdu_instance, e
+ error_msg = "Error scaling application {} of the model {} of the kdu instance {}: {}".format(
+ resource_name, model_name, kdu_instance, e
)
self.log.error(error_msg)
raise K8sException(message=error_msg)
self,
resource_name: str,
kdu_instance: str,
+ namespace: str = None,
**kwargs,
) -> int:
"""Get an application scale count
- :param: resource_name str: Resource name (Application name)
+ :param: resource_name str: The application name in the Juju Bundle
:param: kdu_instance str: KDU instance name
+ :param namespace str: The namespace (model) where the Bundle was deployed
:param kwargs: Additional parameters
vca_id (str): VCA ID
:return: Return application instance count
"""
+
+ model_name = self._obtain_namespace(
+ kdu_instance=kdu_instance, namespace=namespace
+ )
try:
libjuju = await self._get_libjuju(kwargs.get("vca_id"))
- status = await libjuju.get_model_status(kdu_instance)
+ status = await libjuju.get_model_status(model_name=model_name)
return len(status.applications[resource_name].units)
except Exception as e:
- error_msg = "Error getting scale count from application {} in kdu instance {}: {}".format(
- resource_name, kdu_instance, e
+ error_msg = (
+ f"Error getting scale count from application {resource_name} of the model {model_name} of "
+ f"the kdu instance {kdu_instance}: {e}"
)
self.log.error(error_msg)
raise K8sException(message=error_msg)
self,
cluster_uuid: str,
kdu_instance: str,
+ namespace: str = None,
**kwargs,
) -> bool:
"""Uninstall a KDU instance
:param cluster_uuid str: The UUID of the cluster
:param kdu_instance str: The unique name of the KDU instance
+ :param namespace str: The namespace (model) where the Bundle was deployed
:param kwargs: Additional parameters
vca_id (str): VCA ID
:return: Returns True if successful, or raises an exception
"""
+ model_name = self._obtain_namespace(
+ kdu_instance=kdu_instance, namespace=namespace
+ )
- self.log.debug("[uninstall] Destroying model")
- libjuju = await self._get_libjuju(kwargs.get("vca_id"))
+ self.log.debug(f"[uninstall] Destroying model: {model_name}")
+
+ will_not_delete = False
+ if model_name not in self.uninstall_locks:
+ self.uninstall_locks[model_name] = asyncio.Lock(loop=self.loop)
+ delete_lock = self.uninstall_locks[model_name]
- await libjuju.destroy_model(kdu_instance, total_timeout=3600)
+ while delete_lock.locked():
+ will_not_delete = True
+ await asyncio.sleep(0.1)
+
+ if will_not_delete:
+ self.log.info("Model {} deleted by another worker.".format(model_name))
+ return True
+
+ try:
+ async with delete_lock:
+ libjuju = await self._get_libjuju(kwargs.get("vca_id"))
- # self.log.debug("[uninstall] Model destroyed and disconnecting")
- # await controller.disconnect()
+ await libjuju.destroy_model(model_name, total_timeout=3600)
+ finally:
+ self.uninstall_locks.pop(model_name)
+ self.log.debug(f"[uninstall] Model {model_name} destroyed")
return True
- # TODO: Remove these commented lines
- # if not self.authenticated:
- # self.log.debug("[uninstall] Connecting to controller")
- # await self.login(cluster_uuid)
+
+ async def upgrade_charm(
+ self,
+ ee_id: str = None,
+ path: str = None,
+ charm_id: str = None,
+ charm_type: str = None,
+ timeout: float = None,
+ ) -> str:
+ """This method upgrade charms in VNFs
+
+ Args:
+ ee_id: Execution environment id
+ path: Local path to the charm
+ charm_id: charm-id
+ charm_type: Charm type can be lxc-proxy-charm, native-charm or k8s-proxy-charm
+ timeout: (Float) Timeout for the ns update operation
+
+ Returns:
+ The output of the update operation if status equals to "completed"
+ """
+ raise K8sException(
+ "KDUs deployed with Juju Bundle do not support charm upgrade"
+ )
async def exec_primitive(
self,
timeout: float = 300,
params: dict = None,
db_dict: dict = None,
+ namespace: str = None,
**kwargs,
) -> str:
"""Exec primitive (Juju action)
:param timeout: Timeout for action execution
:param params: Dictionary of all the parameters needed for the action
:param db_dict: Dictionary for any additional data
+ :param namespace str: The namespace (model) where the Bundle was deployed
:param kwargs: Additional parameters
vca_id (str): VCA ID
"""
libjuju = await self._get_libjuju(kwargs.get("vca_id"))
+ namespace = self._obtain_namespace(
+ kdu_instance=kdu_instance, namespace=namespace
+ )
+
if not params or "application-name" not in params:
raise K8sException(
"Missing application-name argument, \
try:
self.log.debug(
"[exec_primitive] Getting model "
- "kdu_instance: {}".format(kdu_instance)
+ "{} for the kdu_instance: {}".format(namespace, kdu_instance)
)
application_name = params["application-name"]
- actions = await libjuju.get_actions(application_name, kdu_instance)
+ actions = await libjuju.get_actions(
+ application_name=application_name, model_name=namespace
+ )
if primitive_name not in actions:
raise K8sException("Primitive {} not found".format(primitive_name))
output, status = await libjuju.execute_action(
- application_name, kdu_instance, primitive_name, **params
+ application_name=application_name,
+ model_name=namespace,
+ action_name=primitive_name,
+ **params,
)
if status != "completed":
)
if self.on_update_db:
await self.on_update_db(
- cluster_uuid, kdu_instance, filter=db_dict["filter"]
+ cluster_uuid=cluster_uuid,
+ kdu_instance=kdu_instance,
+ filter=db_dict["filter"],
)
return output
) -> str:
"""View the README
- If available, returns the README of the bundle.
-
- :param kdu_model str: The name or path of a bundle
+ If available, returns the README of the bundle.
- :return: If found, returns the contents of the README.
+ :param kdu_model str: The name or path of a bundle
+ f
+ :return: If found, returns the contents of the README.
"""
readme = None
kdu_instance: str,
complete_status: bool = False,
yaml_format: bool = False,
+ namespace: str = None,
**kwargs,
- ) -> dict:
+ ) -> Union[str, dict]:
"""Get the status of the KDU
Get the current status of the KDU instance.
:param kdu_instance str: The unique id of the KDU instance
:param complete_status: To get the complete_status of the KDU
:param yaml_format: To get the status in proper format for NSR record
+ :param namespace str: The namespace (model) where the Bundle was deployed
:param: kwargs: Additional parameters
vca_id (str): VCA ID
libjuju = await self._get_libjuju(kwargs.get("vca_id"))
status = {}
- model_status = await libjuju.get_model_status(kdu_instance)
+ model_name = self._obtain_namespace(
+ kdu_instance=kdu_instance, namespace=namespace
+ )
+ model_status = await libjuju.get_model_status(model_name=model_name)
if not complete_status:
for name in model_status.applications:
self.log.error(message)
raise Exception(message=message)
- async def update_vca_status(self, vcastatus: dict, kdu_instance: str, **kwargs):
+ async def update_vca_status(
+ self, vcastatus: dict, kdu_instance: str, namespace: str = None, **kwargs
+ ):
"""
Add all configs, actions, executed actions of all applications in a model to vcastatus dict
:param vcastatus dict: dict containing vcastatus
:param kdu_instance str: The unique id of the KDU instance
+ :param namespace str: The namespace (model) where the Bundle was deployed
:param: kwargs: Additional parameters
vca_id (str): VCA ID
:return: None
"""
+
+ model_name = self._obtain_namespace(
+ kdu_instance=kdu_instance, namespace=namespace
+ )
+
libjuju = await self._get_libjuju(kwargs.get("vca_id"))
try:
- for model_name in vcastatus:
+ for vca_model_name in vcastatus:
# Adding executed actions
- vcastatus[model_name][
+ vcastatus[vca_model_name][
"executedActions"
- ] = await libjuju.get_executed_actions(kdu_instance)
+ ] = await libjuju.get_executed_actions(model_name=model_name)
- for application in vcastatus[model_name]["applications"]:
+ for application in vcastatus[vca_model_name]["applications"]:
# Adding application actions
- vcastatus[model_name]["applications"][application][
+ vcastatus[vca_model_name]["applications"][application][
"actions"
- ] = await libjuju.get_actions(application, kdu_instance)
+ ] = {}
# Adding application configs
- vcastatus[model_name]["applications"][application][
+ vcastatus[vca_model_name]["applications"][application][
"configs"
- ] = await libjuju.get_application_configs(kdu_instance, application)
+ ] = await libjuju.get_application_configs(
+ model_name=model_name, application_name=application
+ )
except Exception as e:
self.log.debug("Error in updating vca status: {}".format(str(e)))
) -> list:
"""Return a list of services of a kdu_instance"""
+ namespace = self._obtain_namespace(
+ kdu_instance=kdu_instance, namespace=namespace
+ )
+
credentials = self.get_credentials(cluster_uuid=cluster_uuid)
kubectl = self._get_kubectl(credentials)
return kubectl.get_services(
- field_selector="metadata.namespace={}".format(kdu_instance)
+ field_selector="metadata.namespace={}".format(namespace)
)
async def get_service(
with open(kubecfg.name, "w") as kubecfg_file:
kubecfg_file.write(credentials)
return Kubectl(config_file=kubecfg.name)
+
+ def _obtain_namespace(self, kdu_instance: str, namespace: str = None) -> str:
+ """
+ Obtain the namespace/model name to use in the instantiation of a Juju Bundle in K8s. The default namespace is
+ the kdu_instance name. However, if the user passes the namespace where he wants to deploy the bundle,
+ that namespace will be used.
+
+ :param kdu_instance: the default KDU instance name
+ :param namespace: the namespace passed by the User
+ """
+
+ # deault the namespace/model name to the kdu_instance name TODO -> this should be the real return... But
+ # once the namespace is not passed in most methods, I had to do this in another way. But I think this should
+ # be the procedure in the future return namespace if namespace else kdu_instance
+
+ # TODO -> has referred above, this should be avoided in the future, this is temporary, in order to avoid
+ # compatibility issues
+ return (
+ namespace
+ if namespace
+ else self._obtain_namespace_from_db(kdu_instance=kdu_instance)
+ )
+
+ def _obtain_namespace_from_db(self, kdu_instance: str) -> str:
+ db_nsrs = self.db.get_one(
+ table="nsrs", q_filter={"_admin.deployed.K8s.kdu-instance": kdu_instance}
+ )
+ for k8s in db_nsrs["_admin"]["deployed"]["K8s"]:
+ if k8s.get("kdu-instance") == kdu_instance:
+ return k8s.get("namespace")
+ return ""
projects / osm / N2VC.git / blobdiff