def load_all(cls, context, cluster_id=None, limit=None, marker=None,
sort=None, filters=None, project_safe=True):
'''Retrieve all nodes of from database.'''
records = db_api.node_get_all(context, cluster_id=cluster_id,
filters=filters, sort=sort,
limit=limit, marker=marker,
project_safe=project_safe)
return [cls._from_db_record(context, record) for record in records]
def load_all(cls, context, cluster_id=None, show_deleted=False,
limit=None, marker=None, sort_keys=None, sort_dir=None,
filters=None, project_safe=True):
'''Retrieve all nodes of from database.'''
records = db_api.node_get_all(context, cluster_id=cluster_id,
show_deleted=show_deleted,
limit=limit, marker=marker,
sort_keys=sort_keys, sort_dir=sort_dir,
filters=filters,
project_safe=project_safe)
return [cls._from_db_record(context, record) for record in records]
def pre_op(self, cluster_id, action):
status = base.CHECK_OK
reason = _('Scaling request validated.')
cluster = db_api.cluster_get(action.context, cluster_id)
nodes = db_api.node_get_all(action.context, cluster_id,
filters={'status': 'ACTIVE'})
current_size = len(nodes)
count = self._calculate_adjustment_count(current_size)
# Use action input if count is provided
count = int(action.inputs.get('count', count))
if count <= 0:
status = base.CHECK_ERROR
reason = _("Count (%(count)s) invalid for action %(action)s."
) % {'count': count, 'action': action.action}
# Check size constraints
if action.action == consts.CLUSTER_SCALE_IN:
new_size = current_size - count
if (new_size < cluster.min_size):
if self.best_effort:
count = current_size - cluster.min_size
reason = _('Do best effort scaling.')
else:
status = base.CHECK_ERROR
reason = _('Attempted scaling below minimum size.')
else:
new_size = current_size + count
if (new_size > cluster.max_size):
if self.best_effort:
count = cluster.max_size - current_size
reason = _('Do best effort scaling.')
else:
status = base.CHECK_ERROR
reason = _('Attempted scaling above maximum size.')
pd = {'status': status, 'reason': reason}
if status == base.CHECK_OK:
if action.action == consts.CLUSTER_SCALE_IN:
pd['deletion'] = {'count': count}
else:
pd['creation'] = {'count': count}
action.data.update(pd)
action.store(action.context)
return
def get_all(cls, context, **kwargs):
objs = db_api.node_get_all(context, **kwargs)
return [cls._from_db_object(context, cls(), obj) for obj in objs]
def get_all(cls, context, **kwargs):
objs = db_api.node_get_all(context, **kwargs)
return [cls._from_db_object(context, cls(), obj) for obj in objs]
