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# Copyright 2014 Huawei Technologies Co. Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Module to delete a given cluster
"""
import logging
from compass.actions import util
from compass.db.api import cluster as cluster_api
from compass.db.api import host as host_api
from compass.db.api import user as user_db
from compass.deployment.deploy_manager import DeployManager
from compass.deployment.utils import constants as const
def delete_cluster(
cluster_id, host_id_list,
username=None, delete_underlying_host=False
):
"""Delete cluster and all clusterhosts on it.
:param cluster_id: id of the cluster.
:type cluster_id: int
:param host_id_list: list of host id.
:type host_id_list: list of int.
If delete_underlying_host is set, all underlying hosts will
be deleted.
.. note::
The function should be called out of database session.
"""
with util.lock('serialized_action', timeout=100) as lock:
if not lock:
raise Exception('failed to acquire lock to delete cluster')
user = user_db.get_user_object(username)
cluster_info = util.ActionHelper.get_cluster_info(cluster_id, user)
adapter_id = cluster_info[const.ADAPTER_ID]
adapter_info = util.ActionHelper.get_adapter_info(
adapter_id, cluster_id, user)
hosts_info = util.ActionHelper.get_hosts_info(
cluster_id, host_id_list, user)
deploy_manager = DeployManager(adapter_info, cluster_info, hosts_info)
deploy_manager.remove_hosts(
package_only=not delete_underlying_host,
delete_cluster=True
)
util.ActionHelper.delete_cluster(
cluster_id, host_id_list, user,
delete_underlying_host
)
def delete_cluster_host(
cluster_id, host_id,
username=None, delete_underlying_host=False
):
"""Delete clusterhost.
:param cluster_id: id of the cluster.
:type cluster_id: int
:param host_id: id of the host.
:type host_id: int
If delete_underlying_host is set, the underlying host
will be deleted too.
.. note::
The function should be called out of database session.
"""
with util.lock('serialized_action', timeout=100) as lock:
if not lock:
raise Exception('failed to acquire lock to delete clusterhost')
user = user_db.get_user_object(username)
cluster_info = util.ActionHelper.get_cluster_info(cluster_id, user)
adapter_id = cluster_info[const.ADAPTER_ID]
adapter_info = util.ActionHelper.get_adapter_info(
adapter_id, cluster_id, user)
hosts_info = util.ActionHelper.get_hosts_info(
cluster_id, [host_id], user)
deploy_manager = DeployManager(adapter_info, cluster_info, hosts_info)
deploy_manager.remove_hosts(
package_only=not delete_underlying_host,
delete_cluster=False
)
util.ActionHelper.delete_cluster_host(
cluster_id, host_id, user,
delete_underlying_host
)
def delete_host(
host_id, cluster_id_list, username=None
):
"""Delete host and all clusterhosts on it.
:param host_id: id of the host.
:type host_id: int
.. note::
The function should be called out of database session.
"""
with util.lock('serialized_action', timeout=100) as lock:
if not lock:
raise Exception('failed to acquire lock to delete host')
user = user_db.get_user_object(username)
for cluster_id in cluster_id_list:
cluster_info = util.ActionHelper.get_cluster_info(
cluster_id, user)
adapter_id = cluster_info[const.ADAPTER_ID]
adapter_info = util.ActionHelper.get_adapter_info(
adapter_id, cluster_id, user)
hosts_info = util.ActionHelper.get_hosts_info(
cluster_id, [host_id], user)
deploy_manager = DeployManager(
adapter_info, cluster_info, hosts_info)
deploy_manager.remove_hosts(
package_only=True,
delete_cluster=False
)
util.ActionHelper.delete_host(
host_id, user
)
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