def _rollback_cluster_scaling(self, cluster, instances, ex):
"""Attempt to rollback cluster scaling."""
for i in instances:
with context.set_current_instance_id(i.instance_id):
self._shutdown_instance(i)
cluster = conductor.cluster_get(context.ctx(), cluster)
c_u.clean_cluster_from_empty_ng(cluster)
def test_clean_cluster_from_empty_ng(self):
ctx = context.ctx()
cluster = self._make_sample()
ng = cluster.node_groups[0]
ng_len = len(cluster.node_groups)
self.api.node_group_update(ctx, ng, {'count': 0})
cluster = self.api.cluster_get(ctx, cluster.id)
cluster_utils.clean_cluster_from_empty_ng(cluster)
cluster = self.api.cluster_get(ctx, cluster.id)
self.assertEqual(ng_len - 1, len(cluster.node_groups))
def test_clean_cluster_from_empty_ng(self):
ctx = context.ctx()
cluster = self._make_sample()
ng = cluster.node_groups[0]
ng_len = len(cluster.node_groups)
self.api.node_group_update(ctx, ng, {'count': 0})
cluster = self.api.cluster_get(ctx, cluster.id)
cluster_utils.clean_cluster_from_empty_ng(cluster)
cluster = self.api.cluster_get(ctx, cluster.id)
self.assertEqual(ng_len - 1, len(cluster.node_groups))
def scale_cluster(id, data):
context.set_current_cluster_id(id)
ctx = context.ctx()
cluster = conductor.cluster_get(ctx, id)
plugin = plugin_base.PLUGINS.get_plugin(cluster.plugin_name)
existing_node_groups = data.get('resize_node_groups', [])
additional_node_groups = data.get('add_node_groups', [])
# the next map is the main object we will work with
# to_be_enlarged : {node_group_id: desired_amount_of_instances}
to_be_enlarged = {}
node_group_instance_map = {}
for ng in existing_node_groups:
ng_id = g.find(cluster.node_groups, name=ng['name'])['id']
to_be_enlarged.update({ng_id: ng['count']})
if 'instances' in ng:
node_group_instance_map.update({ng_id: ng['instances']})
additional = construct_ngs_for_scaling(cluster, additional_node_groups)
cluster = conductor.cluster_get(ctx, cluster)
_add_ports_for_auto_sg(ctx, cluster, plugin)
try:
cluster = c_u.change_cluster_status(
cluster, c_u.CLUSTER_STATUS_VALIDATING)
quotas.check_scaling(cluster, to_be_enlarged, additional)
plugin.recommend_configs(cluster, scaling=True)
plugin.validate_scaling(cluster, to_be_enlarged, additional)
except Exception as e:
with excutils.save_and_reraise_exception():
c_u.clean_cluster_from_empty_ng(cluster)
c_u.change_cluster_status(
cluster, c_u.CLUSTER_STATUS_ACTIVE, six.text_type(e))
# If we are here validation is successful.
# So let's update to_be_enlarged map:
to_be_enlarged.update(additional)
for node_group in cluster.node_groups:
if node_group.id not in to_be_enlarged:
to_be_enlarged[node_group.id] = node_group.count
api.OPS.provision_scaled_cluster(id, to_be_enlarged,
node_group_instance_map)
return cluster
def scale_cluster(id, data):
context.set_current_cluster_id(id)
ctx = context.ctx()
cluster = conductor.cluster_get(ctx, id)
plugin = plugin_base.PLUGINS.get_plugin(cluster.plugin_name)
existing_node_groups = data.get('resize_node_groups', [])
additional_node_groups = data.get('add_node_groups', [])
# the next map is the main object we will work with
# to_be_enlarged : {node_group_id: desired_amount_of_instances}
to_be_enlarged = {}
node_group_instance_map = {}
for ng in existing_node_groups:
ng_id = g.find(cluster.node_groups, name=ng['name'])['id']
to_be_enlarged.update({ng_id: ng['count']})
if 'instances' in ng:
node_group_instance_map.update({ng_id: ng['instances']})
additional = construct_ngs_for_scaling(cluster, additional_node_groups)
cluster = conductor.cluster_get(ctx, cluster)
_add_ports_for_auto_sg(ctx, cluster, plugin)
try:
cluster = c_u.change_cluster_status(cluster,
c_u.CLUSTER_STATUS_VALIDATING)
quotas.check_scaling(cluster, to_be_enlarged, additional)
plugin.recommend_configs(cluster, scaling=True)
plugin.validate_scaling(cluster, to_be_enlarged, additional)
except Exception as e:
with excutils.save_and_reraise_exception():
c_u.clean_cluster_from_empty_ng(cluster)
c_u.change_cluster_status(cluster, c_u.CLUSTER_STATUS_ACTIVE,
six.text_type(e))
# If we are here validation is successful.
# So let's update to_be_enlarged map:
to_be_enlarged.update(additional)
for node_group in cluster.node_groups:
if node_group.id not in to_be_enlarged:
to_be_enlarged[node_group.id] = node_group.count
api.OPS.provision_scaled_cluster(id, to_be_enlarged,
node_group_instance_map)
return cluster
def scale_cluster(self, cluster, target_count):
ctx = context.ctx()
rollback_count = self._get_ng_counts(cluster)
self._update_rollback_strategy(cluster, rollback_count=rollback_count,
target_count=target_count)
inst_ids = self._launch_instances(
cluster, target_count, SCALE_STAGES,
update_stack=True, disable_rollback=False)
cluster = conductor.cluster_get(ctx, cluster)
c_u.clean_cluster_from_empty_ng(cluster)
self._update_rollback_strategy(cluster)
return inst_ids
def scale_cluster(self, cluster, target_count):
ctx = context.ctx()
rollback_count = self._get_ng_counts(cluster)
self._update_rollback_strategy(cluster, rollback_count=rollback_count,
target_count=target_count)
inst_ids = self._launch_instances(
cluster, target_count, SCALE_STAGES,
update_stack=True, disable_rollback=False)
cluster = conductor.cluster_get(ctx, cluster)
c_u.clean_cluster_from_empty_ng(cluster)
self._update_rollback_strategy(cluster)
return inst_ids
def scale_cluster(self, cluster, node_group_id_map):
_warning_logger()
ctx = context.ctx()
cluster = c_u.change_cluster_status(
cluster, c_u.CLUSTER_STATUS_SCALING_SPAWNING)
instance_ids = self._scale_cluster_instances(cluster,
node_group_id_map)
self._update_rollback_strategy(cluster, instance_ids=instance_ids)
cluster = conductor.cluster_get(ctx, cluster)
c_u.clean_cluster_from_empty_ng(cluster)
cluster = conductor.cluster_get(ctx, cluster)
instances = c_u.get_instances(cluster, instance_ids)
self._await_active(cluster, instances)
self._assign_floating_ips(instances)
self._await_networks(cluster, instances)
cluster = conductor.cluster_get(ctx, cluster)
volumes.attach_to_instances(
c_u.get_instances(cluster, instance_ids))
# we should be here with valid cluster: if instances creation
# was not successful all extra-instances will be removed above
if instance_ids:
self._configure_instances(cluster)
self._update_rollback_strategy(cluster)
return instance_ids
