def _rollback_cluster_scaling(cluster, instances, ex):
"""Attempt to rollback cluster scaling."""
LOG.info("Cluster '%s' scaling rollback (reason: %s)", cluster.name, ex)
try:
volumes.detach_from_instances(instances)
finally:
for i in instances:
_shutdown_instance(i)
def _rollback_cluster_scaling(cluster, instances, ex):
"""Attempt to rollback cluster scaling."""
LOG.info("Cluster '%s' scaling rollback (reason: %s)", cluster.name, ex)
try:
volumes.detach_from_instances(instances)
finally:
for i in instances:
_shutdown_instance(i)
def _rollback_cluster_scaling(cluster, instances, ex):
"""Attempt to rollback cluster scaling."""
LOG.info("Cluster '%s' scaling rollback (reason: %s)", cluster.name, ex)
try:
volumes.detach_from_instances(instances)
except Exception:
raise
finally:
for i in instances:
ng = i.node_group
_shutdown_instance(i)
ng.count -= 1
def test_detach_volumes(self, p_get_volume, p_detach, p_delete):
instance = {'instance_id': '123454321', 'volumes': [123]}
ng = r.NodeGroupResource({'instances': [instance]})
p_get_volume.return_value = v.Volume(None, {'id': '123'})
p_detach.return_value = None
p_delete.return_value = None
self.assertIsNone(volumes.detach_from_instances([ng.instances[0]]))
cluster = r.ClusterResource({'node_groups': [ng]})
p_delete.side_effect = RuntimeError
self.assertRaises(RuntimeError, volumes.detach, cluster)
def test_detach_volumes(self, p_get_volume, p_detach, p_delete):
instance = {'instance_id': '123454321',
'volumes': [123]}
ng = r.NodeGroupResource({'instances': [instance]})
p_get_volume.return_value = v.Volume(None, {'id': '123'})
p_detach.return_value = None
p_delete.return_value = None
self.assertIsNone(
volumes.detach_from_instances([ng.instances[0]]))
cluster = r.ClusterResource({'node_groups': [ng]})
p_delete.side_effect = RuntimeError
self.assertRaises(RuntimeError, volumes.detach, cluster)
def test_detach_volumes(self, p_get_volume, p_detach, p_delete):
instance = m.Instance(None, None, None)
instance.volumes.append("123")
p_get_volume.return_value = v.Volume(None, {'id': '123'})
p_detach.return_value = None
p_delete.return_value = None
self.assertIsNone(
volumes.detach_from_instances([instance]))
ng = m.NodeGroup(None, None, None, None)
ng.instances.append(instance)
cluster = m.Cluster(None, None, None, None)
cluster.node_groups.append(ng)
p_delete.side_effect = RuntimeError
self.assertRaises(RuntimeError, volumes.detach, cluster)
