import logging
-from datetime import datetime
+
+from dateutil.parser import parse as parse_date
from . import model
from .client import client
"""Returns the current agent status string.
"""
- return self.data['agent-status']['current']
+ return self.safe_data['agent-status']['current']
@property
def agent_status_since(self):
"""Get the time when the `agent_status` was last updated.
"""
- since = self.data['agent-status']['since']
- # Juju gives us nanoseconds, but Python only supports microseconds
- since = since[:26]
- return datetime.strptime(since, "%Y-%m-%dT%H:%M:%S.%f")
+ return parse_date(self.safe_data['agent-status']['since'])
@property
def agent_status_message(self):
"""Get the agent status message.
"""
- return self.data['agent-status']['message']
+ return self.safe_data['agent-status']['message']
@property
def workload_status(self):
"""Returns the current workload status string.
"""
- return self.data['workload-status']['current']
+ return self.safe_data['workload-status']['current']
@property
def workload_status_since(self):
"""Get the time when the `workload_status` was last updated.
"""
- since = self.data['workload-status']['since']
- # Juju gives us nanoseconds, but Python only supports microseconds
- since = since[:26]
- return datetime.strptime(since, "%Y-%m-%dT%H:%M:%S.%f")
+ return parse_date(self.safe_data['workload-status']['since'])
@property
def workload_status_message(self):
"""Get the workload status message.
"""
- return self.data['workload-status']['message']
+ return self.safe_data['workload-status']['message']
@property
def tag(self):
raise Exception('Unknown action error: %s' % error.serialize())
action_id = action.tag[len('action-'):]
log.debug('Action started as %s', action_id)
- # we can't use wait_for_new here because we don't
- # consistently (ever?) get an "add" delta for the action
- return await self.model._wait('action', action_id, None)
+ # we mustn't use wait_for_action because that blocks until the
+ # action is complete, rather than just being in the model
+ return await self.model._wait_for_new('action', action_id)
def scp(
self, source_path, user=None, destination_path=None, proxy=False,
"""
pass
+
+ async def is_leader_from_status(self):
+ """
+ Check to see if this unit is the leader. Returns True if so, and
+ False if it is not, or if leadership does not make sense
+ (e.g., there is no leader in this application.)
+
+ This method is a kluge that calls FullStatus in the
+ ClientFacade to get its information. Once
+ https://bugs.launchpad.net/juju/+bug/1643691 is resolved, we
+ should add a simple .is_leader property, and deprecate this
+ method.
+
+ """
+ app = self.name.split("/")[0]
+
+ c = client.ClientFacade()
+ c.connect(self.model.connection)
+
+ status = await c.FullStatus(None)
+
+ # FullStatus may be more up to date than our model, and the
+ # unit may have gone away, or we may be doing something silly,
+ # like trying to fetch leadership for a subordinate, which
+ # will not be filed where we expect in the model. In those
+ # cases, we may simply return False, as a nonexistent or
+ # subordinate unit is not a leader.
+ if not status.applications.get(app):
+ return False
+
+ if not status.applications[app].get('units'):
+ return False
+
+ if not status.applications[app]['units'].get(self.name):
+ return False
+
+ return status.applications[app]['units'][self.name].get('leader',
+ False)
+
+ async def get_metrics(self):
+ metrics = await self.model.get_metrics(self.tag)
+ return metrics[self.name]