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# ============LICENSE_START=======================================================
# ONAP - SO
# ================================================================================
# Copyright (C) 2020 Huawei Technologies Co., Ltd. All rights reserved.
# ================================================================================
# 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.
# ============LICENSE_END=========================================================
import os
import logging
import shutil
import random
import time
import conf
import ems_util
OPERATION_NAME = "activateNESw"
logging.basicConfig(level=logging.INFO, format=conf.LOGGER_FORMAT, filename=ems_util.get_log_file(OPERATION_NAME))
logger = logging.getLogger(OPERATION_NAME)
def do_activate(sw_version_to_be_activated, ne_info):
"""
return err, reason
"""
logger.info("swVersionToBeActivated: %s" % sw_version_to_be_activated)
installed_sw = ne_info.get("installedSw", {})
if sw_version_to_be_activated in installed_sw:
target_sw_version = installed_sw[sw_version_to_be_activated]["version"]
else:
target_sw_version = sw_version_to_be_activated
sw_install_dir_in_ne = ems_util.get_install_dir(ne_info['omIP'])
logger.info("SW has been installed at %s" % sw_install_dir_in_ne)
if "targetSwVersion" in ne_info:
if ne_info["targetSwVersion"] != target_sw_version:
msg = "Conflicted targetVersion with to be activated %s" % target_sw_version
logger.error(msg)
return True, msg
del ne_info["targetSwVersion"]
old_sw_version = ne_info.get("oldSwVersion", "")
if target_sw_version != ne_info["currentSwVersion"]:
ne_info["oldSwVersion"] = ne_info["currentSwVersion"]
ne_info["currentSwVersion"] = target_sw_version
ne_info["status"] = conf.STATUS_ACTIVATING
ems_util.update_ne_info(ne_info)
if target_sw_version != old_sw_version:
old_sw_dir = os.path.join(sw_install_dir_in_ne, old_sw_version)
if old_sw_version and os.path.isdir(old_sw_dir):
shutil.rmtree(old_sw_dir, ignore_errors=True)
old_cwd = os.getcwd()
os.chdir(sw_install_dir_in_ne)
if os.path.islink(conf.CURRENT_VERSION_DIR):
os.remove(conf.CURRENT_VERSION_DIR)
os.symlink(target_sw_version, conf.CURRENT_VERSION_DIR)
os.chdir(old_cwd)
if "downloadedSwLocation" in ne_info:
if os.path.isdir(ne_info["downloadedSwLocation"]):
shutil.rmtree(ne_info["downloadedSwLocation"], ignore_errors=True)
del ne_info["downloadedSwLocation"]
return False, None
def generate_notification(activate_process_id, activate_status, sw_version, failure_reason):
notification = {
"objectClass": conf.OBJECT_CLASS,
"objectInstance": conf.OBJECT_INSTANCE,
"notificationId": random.randint(1, conf.MAX_INT),
"eventTime": time.asctime(),
"systemDN": conf.SYSTEM_DN,
"notificationType": "notifyActivateNESwStatusChanged",
"activateProcessId": activate_process_id,
"activateOperationStatus": activate_status,
"swVersion": sw_version
}
if failure_reason:
logger.error(failure_reason)
notification["failureReason"] = failure_reason
return notification
def activate(sw_version_to_be_activated, ne_id):
ne_info = ems_util.get_ne_info_from_db_by_id(ne_id)
activate_process_id = random.randint(1, conf.MAX_INT)
result = conf.REQ_SUCCESS
ret_value = {
"activateProcessId": activate_process_id,
"result": result
}
if not ne_info:
ret_value["result"] = conf.REQ_FAILURE
ret_value["reason"] = "Can not find NE %s" % ne_id
logger.error(ret_value["reason"])
return ret_value
err, reason = do_activate(sw_version_to_be_activated, ne_info)
if not err:
ne_info["status"] = conf.STATUS_ACTIVATED
ems_util.update_ne_info(ne_info)
logger.info("Activate SW success")
activate_status = "NE_SWACTIVATION_SUCCESSFUL"
else:
ret_value["result"] = conf.REQ_FAILURE
ret_value["reason"] = reason
logger.error("Activate SW failure, reason: %s" % ret_value["reason"])
activate_status = "NE_SWACTIVATION_FAILED"
notification = generate_notification(activate_process_id, activate_status, sw_version_to_be_activated, reason)
ems_util.send_notification(notification, activate_process_id)
# for automated software management, there is no listOfStepNumbersAndDurations
return notification, ret_value
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