+import asyncio
+import logging
+
from . import model
+from .client import client
+from .placement import parse as parse_placement
+
+log = logging.getLogger(__name__)
class Application(model.ModelEntity):
- def add_relation(self, local_relation, remote_relation):
- """Add a relation to another service.
+ @property
+ def _unit_match_pattern(self):
+ return r'^{}.*$'.format(self.entity_id)
- :param str local_relation: Name of relation on this service
- :param str remote_relation: Name of relation on the other service in
- the form '<service>[:<relation_name>]'
+ def on_unit_add(self, callable_):
+ """Add a "unit added" observer to this entity, which will be called
+ whenever a unit is added to this application.
"""
- pass
+ self.model.add_observer(
+ callable_, 'unit', 'add', self._unit_match_pattern)
+
+ def on_unit_remove(self, callable_):
+ """Add a "unit removed" observer to this entity, which will be called
+ whenever a unit is removed from this application.
+
+ """
+ self.model.add_observer(
+ callable_, 'unit', 'remove', self._unit_match_pattern)
+
+ @property
+ def units(self):
+ return [
+ unit for unit in self.model.units.values()
+ if unit.application == self.name
+ ]
+
+ @property
+ def status(self):
+ """Get the application status, as set by the charm's leader.
- def add_unit(self, count=1, to=None):
- """Add one or more units to this service.
+ """
+ return self.data['status']['current']
+
+ @property
+ def status_message(self):
+ """Get the application status message, as set by the charm's leader.
+
+ """
+ return self.data['status']['message']
+
+ @property
+ def tag(self):
+ return 'application-%s' % self.name
+
+ async def add_relation(self, local_relation, remote_relation):
+ """Add a relation to another application.
+
+ :param str local_relation: Name of relation on this application
+ :param str remote_relation: Name of relation on the other
+ application in the form '<application>[:<relation_name>]'
+
+ """
+ if ':' not in local_relation:
+ local_relation = '{}:{}'.format(self.name, local_relation)
+
+ return await self.model.add_relation(local_relation, remote_relation)
+
+ async def add_unit(self, count=1, to=None):
+ """Add one or more units to this application.
:param int count: Number of units to add
:param str to: Placement directive, e.g.::
If None, a new machine is provisioned.
"""
- pass
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Adding %s unit%s to %s',
+ count, '' if count == 1 else 's', self.name)
+
+ result = await app_facade.AddUnits(
+ application=self.name,
+ placement=[parse_placement(to)],
+ num_units=count,
+ )
+
+ return await asyncio.gather(*[
+ asyncio.ensure_future(self.model._wait_for_new('unit', unit_id))
+ for unit_id in result.units
+ ])
+
add_units = add_unit
def allocate(self, budget, value):
- """Allocate budget to this service.
+ """Allocate budget to this application.
:param str budget: Name of budget
:param int value: Budget limit
pass
def attach(self, resource_name, file_path):
- """Upload a file as a resource for this service.
+ """Upload a file as a resource for this application.
:param str resource: Name of the resource
:param str file_path: Path to the file to upload
pass
def collect_metrics(self):
- """Collect metrics on this service.
+ """Collect metrics on this application.
"""
pass
- def destroy_relation(self, local_relation, remote_relation):
- """Remove a relation to another service.
+ async def destroy_relation(self, local_relation, remote_relation):
+ """Remove a relation to another application.
- :param str local_relation: Name of relation on this service
- :param str remote_relation: Name of relation on the other service in
- the form '<service>[:<relation_name>]'
+ :param str local_relation: Name of relation on this application
+ :param str remote_relation: Name of relation on the other
+ application in the form '<application>[:<relation_name>]'
"""
- pass
+ if ':' not in local_relation:
+ local_relation = '{}:{}'.format(self.name, local_relation)
+
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Destroying relation %s <-> %s', local_relation, remote_relation)
+
+ return await app_facade.DestroyRelation([
+ local_relation, remote_relation])
remove_relation = destroy_relation
- def destroy(self):
- """Remove this service from the model.
+ async def destroy_unit(self, *unit_names):
+ """Destroy units by name.
"""
- pass
+ return await self.model.destroy_units(*unit_names)
+ destroy_units = destroy_unit
+
+ async def destroy(self):
+ """Remove this application from the model.
+
+ """
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Destroying %s', self.name)
+
+ return await app_facade.Destroy(self.name)
remove = destroy
- def expose(self):
- """Make this service publicly available over the network.
+ async def expose(self):
+ """Make this application publicly available over the network.
"""
- pass
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
- def get_config(self):
- """Return the configuration settings for this service.
+ log.debug(
+ 'Exposing %s', self.name)
+
+ return await app_facade.Expose(self.name)
+
+ async def get_config(self):
+ """Return the configuration settings dict for this application.
"""
- pass
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Getting config for %s', self.name)
- def get_constraints(self):
- """Return the machine constraints for this service.
+ return (await app_facade.Get(self.name)).config
+
+ async def get_constraints(self):
+ """Return the machine constraints dict for this application.
"""
- pass
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Getting constraints for %s', self.name)
+
+ result = (await app_facade.Get(self.name)).constraints
+ return vars(result) if result else result
def get_actions(self, schema=False):
- """Get actions defined for this service.
+ """Get actions defined for this application.
:param bool schema: Return the full action schema
pass
def get_resources(self, details=False):
- """Return resources for this service.
+ """Return resources for this application.
:param bool details: Include detailed info about resources used by each
unit
"""
pass
- def run(self, command, timeout=None):
- """Run command on all units for this service.
+ async def run(self, command, timeout=None):
+ """Run command on all units for this application.
:param str command: The command to run
:param int timeout: Time to wait before command is considered failed
"""
- pass
+ action = client.ActionFacade()
+ action.connect(self.connection)
+
+ log.debug(
+ 'Running `%s` on all units of %s', command, self.name)
- def set_config(self, to_default=False, **config):
- """Set configuration options for this service.
+ # TODO this should return a list of Actions
+ return await action.Run(
+ [self.name],
+ command,
+ [],
+ timeout,
+ [],
+ )
- :param bool to_default: Set service options to default values
- :param \*\*config: Config key/values
+ async def set_annotations(self, annotations):
+ """Set annotations on this application.
+
+ :param annotations map[string]string: the annotations as key/value
+ pairs.
"""
- pass
+ log.debug('Updating annotations on application %s', self.name)
- def set_constraints(self, constraints):
- """Set machine constraints for this service.
+ self.ann_facade = client.AnnotationsFacade()
+ self.ann_facade.connect(self.connection)
- :param :class:`juju.Constraints` constraints: Machine constraints
+ ann = client.EntityAnnotations(
+ entity=self.name,
+ annotations=annotations,
+ )
+ return await self.ann_facade.Set([ann])
+
+ async def set_config(self, config, to_default=False):
+ """Set configuration options for this application.
+
+ :param config: Dict of configuration to set
+ :param bool to_default: Set application options to default values
"""
- pass
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Setting config for %s: %s', self.name, config)
+
+ return await app_facade.Set(self.name, config)
+
+ async def set_constraints(self, constraints):
+ """Set machine constraints for this application.
+
+ :param dict constraints: Dict of machine constraints
+
+ """
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Setting constraints for %s: %s', self.name, constraints)
+
+ return await app_facade.SetConstraints(self.name, constraints)
def set_meter_status(self, status, info=None):
"""Set the meter status on this status.
pass
def set_plan(self, plan_name):
- """Set the plan for this service, effective immediately.
+ """Set the plan for this application, effective immediately.
:param str plan_name: Name of plan
"""
pass
- def unexpose(self):
- """Remove public availability over the network for this service.
+ async def unexpose(self):
+ """Remove public availability over the network for this application.
"""
- pass
+ app_facade = client.ApplicationFacade()
+ app_facade.connect(self.connection)
+
+ log.debug(
+ 'Unexposing %s', self.name)
+
+ return await app_facade.Unexpose(self.name)
def update_allocation(self, allocation):
- """Update existing allocation for this service.
+ """Update existing allocation for this application.
:param int allocation: The allocation to set
def upgrade_charm(
self, channel=None, force_series=False, force_units=False,
path=None, resources=None, revision=-1, switch=None):
- """Upgrade the charm for this service.
+ """Upgrade the charm for this application.
:param str channel: Channel to use when getting the charm from the
charm store, e.g. 'development'
- :param bool force_series: Upgrade even if series of deployed service
- is not supported by the new charm
+ :param bool force_series: Upgrade even if series of deployed
+ application is not supported by the new charm
:param bool force_units: Upgrade all units immediately, even if in
error state
:param str path: Uprade to a charm located at path
"""
pass
+
+ async def get_metrics(self):
+ return await self.model.get_metrics(self.tag)
projects / osm / N2VC.git / blobdiff