)
from n2vc.n2vc_conn import N2VCConnector
from n2vc.n2vc_conn import obj_to_dict, obj_to_yaml
-from n2vc.libjuju import Libjuju
+from n2vc.libjuju import Libjuju, retry_callback
from n2vc.store import MotorStore
from n2vc.utils import get_ee_id_components, generate_random_alfanum_string
from n2vc.vca.connection import get_connection
db: object,
fs: object,
log: object = None,
- loop: object = None,
on_update_db=None,
):
"""
:param: db: Database object from osm_common
:param: fs: Filesystem object from osm_common
:param: log: Logger
- :param: loop: Asyncio loop
:param: on_update_db: Callback function to be called for updating the database.
"""
# parent class constructor
- N2VCConnector.__init__(
- self,
- db=db,
- fs=fs,
- log=log,
- loop=loop,
- on_update_db=on_update_db,
- )
+ N2VCConnector.__init__(self, db=db, fs=fs, log=log, on_update_db=on_update_db)
# silence websocket traffic log
logging.getLogger("websockets.protocol").setLevel(logging.INFO)
db_uri = EnvironConfig(prefixes=["OSMLCM_", "OSMMON_"]).get("database_uri")
self._store = MotorStore(db_uri)
- self.loading_libjuju = asyncio.Lock(loop=self.loop)
+ self.loading_libjuju = asyncio.Lock()
self.delete_namespace_locks = {}
self.log.info("N2VC juju connector initialized")
# create or reuse a new juju machine
try:
if not await libjuju.model_exists(model_name):
- await libjuju.add_model(
- model_name,
- libjuju.vca_connection.lxd_cloud,
- )
+ await libjuju.add_model(model_name, libjuju.vca_connection.lxd_cloud)
machine, new = await libjuju.create_machine(
model_name=model_name,
machine_id=machine_id,
raise N2VCException(message=message)
# new machine credentials
- credentials = {
- "hostname": machine.dns_name,
- }
+ credentials = {"hostname": machine.dns_name}
self.log.info(
"Execution environment created. ee_id: {}, credentials: {}".format(
# register machine on juju
try:
if not await libjuju.model_exists(model_name):
- await libjuju.add_model(
- model_name,
- libjuju.vca_connection.lxd_cloud,
- )
+ await libjuju.add_model(model_name, libjuju.vca_connection.lxd_cloud)
machine_id = await libjuju.provision_machine(
model_name=model_name,
hostname=hostname,
# In case of native_charm is being deployed, if JujuApplicationExists error happens
# it will try to add_unit
- @retry(attempts=3, delay=5, retry_exceptions=(N2VCApplicationExists,), timeout=None)
+ @retry(
+ attempts=3,
+ delay=5,
+ retry_exceptions=(N2VCApplicationExists,),
+ timeout=None,
+ callback=retry_callback,
+ )
async def install_configuration_sw(
self,
ee_id: str,
_, ns_id, _, _, _ = self._get_namespace_components(namespace=namespace)
model_name = "{}-k8s".format(ns_id)
if not await libjuju.model_exists(model_name):
- await libjuju.add_model(
- model_name,
- libjuju.vca_connection.k8s_cloud,
- )
+ await libjuju.add_model(model_name, libjuju.vca_connection.k8s_cloud)
application_name = self._get_application_name(namespace)
try:
self.log.info("K8s proxy charm installed")
ee_id = N2VCJujuConnector._build_ee_id(
- model_name=model_name,
- application_name=application_name,
- machine_id="k8s",
+ model_name=model_name, application_name=application_name, machine_id="k8s"
)
self._write_ee_id_db(db_dict=db_dict, ee_id=ee_id)
return await libjuju.get_metrics(model_name, application_name)
async def add_relation(
- self,
- provider: RelationEndpoint,
- requirer: RelationEndpoint,
+ self, provider: RelationEndpoint, requirer: RelationEndpoint
):
"""
Add relation between two charmed endpoints
self.log.debug(f"adding new relation between {provider} and {requirer}")
cross_model_relation = (
provider.model_name != requirer.model_name
- or requirer.vca_id != requirer.vca_id
+ or provider.vca_id != requirer.vca_id
)
try:
if cross_model_relation:
requirer.model_name, offer, provider_libjuju
)
await requirer_libjuju.add_relation(
- requirer.model_name,
- requirer.endpoint,
- saas_name,
+ requirer.model_name, requirer.endpoint, saas_name
)
else:
# Standard relation
self.log.info("Deleting namespace={}".format(namespace))
will_not_delete = False
if namespace not in self.delete_namespace_locks:
- self.delete_namespace_locks[namespace] = asyncio.Lock(loop=self.loop)
+ self.delete_namespace_locks[namespace] = asyncio.Lock()
delete_lock = self.delete_namespace_locks[namespace]
while delete_lock.locked():
scaling_in: bool = False,
vca_type: str = None,
vca_id: str = None,
+ application_to_delete: str = None,
):
"""
Delete an execution environment
{collection: <str>, filter: {}, path: <str>},
e.g. {collection: "nsrs", filter:
{_id: <nsd-id>, path: "_admin.deployed.VCA.3"}
- :param: total_timeout: Total timeout
- :param: scaling_in: Boolean to indicate if it is a scaling in operation
- :param: vca_type: VCA type
- :param: vca_id: VCA ID
+ :param total_timeout: Total timeout
+ :param scaling_in: Boolean to indicate if it is a scaling in operation
+ :param vca_type: VCA type
+ :param vca_id: VCA ID
+ :param application_to_delete: name of the single application to be deleted
"""
self.log.info("Deleting execution environment ee_id={}".format(ee_id))
libjuju = await self._get_libjuju(vca_id)
ee_id=ee_id
)
try:
- if not scaling_in:
- # destroy the model
- await libjuju.destroy_model(
+ if application_to_delete == application_name:
+ # destroy the application
+ await libjuju.destroy_application(
model_name=model_name,
+ application_name=application_name,
total_timeout=total_timeout,
)
+ # if model is empty delete it
+ controller = await libjuju.get_controller()
+ model = await libjuju.get_model(
+ controller=controller,
+ model_name=model_name,
+ )
+ if not model.applications:
+ self.log.info("Model {} is empty, deleting it".format(model_name))
+ await libjuju.destroy_model(
+ model_name=model_name,
+ total_timeout=total_timeout,
+ )
+ elif not scaling_in:
+ # destroy the model
+ await libjuju.destroy_model(
+ model_name=model_name, total_timeout=total_timeout
+ )
elif vca_type == "native_charm" and scaling_in:
# destroy the unit in the application
await libjuju.destroy_unit(
config=params_dict,
)
actions = await libjuju.get_actions(
- application_name=application_name,
- model_name=model_name,
+ application_name=application_name, model_name=model_name
)
self.log.debug(
"Application {} has these actions: {}".format(
if status == "completed":
return output
else:
- raise Exception("status is not completed: {}".format(status))
+ if "output" in output:
+ raise Exception(f'{status}: {output["output"]}')
+ else:
+ raise Exception(
+ f"{status}: No further information received from action"
+ )
+
except Exception as e:
- self.log.error(
- "Error executing primitive {}: {}".format(primitive_name, e)
- )
+ self.log.error(f"Error executing primitive {primitive_name}: {e}")
raise N2VCExecutionException(
- message="Error executing primitive {} into ee={} : {}".format(
- primitive_name, ee_id, e
- ),
+ message=f"Error executing primitive {primitive_name} in ee={ee_id}: {e}",
primitive_name=primitive_name,
)
)
try:
-
await libjuju.upgrade_charm(
application_name=application_name,
path=path,
if not self.libjuju:
async with self.loading_libjuju:
vca_connection = await get_connection(self._store)
- self.libjuju = Libjuju(vca_connection, loop=self.loop, log=self.log)
+ self.libjuju = Libjuju(vca_connection, log=self.log)
return self.libjuju
else:
vca_connection = await get_connection(self._store, vca_id)
- return Libjuju(
- vca_connection,
- loop=self.loop,
- log=self.log,
- n2vc=self,
- )
+ return Libjuju(vca_connection, log=self.log, n2vc=self)
def _write_ee_id_db(self, db_dict: dict, ee_id: str):
-
# write ee_id to database: _admin.deployed.VCA.x
try:
the_table = db_dict["collection"]
)
return application_name
+ @staticmethod
+ def _get_vca_record(search_key: str, vca_records: list, vdu_id: str) -> dict:
+ """Get the correct VCA record dict depending on the search key
+
+ Args:
+ search_key (str): keyword to find the correct VCA record
+ vca_records (list): All VCA records as list
+ vdu_id (str): VDU ID
+
+ Returns:
+ vca_record (dict): Dictionary which includes the correct VCA record
+
+ """
+ return next(
+ filter(lambda record: record[search_key] == vdu_id, vca_records), {}
+ )
+
@staticmethod
def _generate_application_name(
charm_level: str,
vnfrs: dict,
vca_records: list,
vnf_count: str = None,
+ vdu_id: str = None,
vdu_count: str = None,
) -> str:
"""Generate application name to make the relevant charm of VDU/KDU
Limiting the app name to 50 characters.
Args:
- charm_level (str): VNF ID
- vnfrs (dict): VDU ID
+ charm_level (str): level of charm
+ vnfrs (dict): vnf record dict
vca_records (list): db_nsr["_admin"]["deployed"]["VCA"] as list
vnf_count (str): vnf count index
+ vdu_id (str): VDU ID
vdu_count (str): vdu count index
Returns:
elif charm_level == "vdu-level":
if len(vca_records) < 1:
raise N2VCException(message="One or more VCA record is expected.")
- vdu_profile_id = vnfrs["vdur"][int(vdu_count)]["vdu-id-ref"]
+
+ # Charms are also used for deployments with Helm charts.
+ # If deployment unit is a Helm chart/KDU,
+ # vdu_profile_id and vdu_count will be empty string.
+ if vdu_count is None:
+ vdu_count = ""
+
# If vnf/vdu is scaled, more than one VCA record may be included in vca_records
# but ee_descriptor_id is same.
# Shorten the ee_descriptor_id, member-vnf-index-ref and vdu_profile_id
# to first 12 characters.
+ if not vdu_id:
+ raise N2VCException(message="vdu-id should be provided.")
+
+ vca_record = N2VCJujuConnector._get_vca_record(
+ "vdu_id", vca_records, vdu_id
+ )
+
+ if not vca_record:
+ vca_record = N2VCJujuConnector._get_vca_record(
+ "kdu_name", vca_records, vdu_id
+ )
+
application_name = (
- vca_records[0]["ee_descriptor_id"][:12]
+ vca_record["ee_descriptor_id"][:12]
+ "-"
+ vnf_count
+ "-"
+ vnfrs["member-vnf-index-ref"][:12]
+ "-"
- + vdu_profile_id[:12]
+ + vdu_id[:12]
+ "-"
+ vdu_count
+ "-vdu"
db_vnfr,
vca_records,
vnf_count=vnf_count,
+ vdu_id=vdu_id,
vdu_count=vdu_count,
)
else:
:param: vca_id: VCA ID
"""
vca_connection = await get_connection(self._store, vca_id=vca_id)
- libjuju = Libjuju(vca_connection, loop=self.loop, log=self.log, n2vc=self)
+ libjuju = Libjuju(vca_connection, log=self.log, n2vc=self)
controller = await libjuju.get_controller()
await libjuju.disconnect_controller(controller)
projects / osm / N2VC.git / blobdiff