gerrit-monitoring/subcommands/uninstall.py
Thomas Draebing 6b75c12831 Rewrite the scripts in python
The scripts were written in bash. Using bash became quite unwieldy.

Python by nature can deal well with yaml and is thus better suited
in dealing with the yaml-based configuration files. This change
rewrites the original scripts staying as close as possible to the
original ones.

Right now, the python scripts call subprocesses a lot to work with
the tools, which were already used before. At least for yaml-
templating there may be better tools that have a python integration,
which could be used in the future.

Change-Id: Ida16318445a05dcfdada9c7a56a391e4827f02e7
2020-04-16 14:25:50 +02:00

60 lines
1.8 KiB
Python

# Copyright (C) 2020 The Android Open Source Project
#
# 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.
import subprocess
from ._globals import HELM_CHARTS
def _get_yn_response(message):
while True:
response = input(message)
if response == "y":
return True
if response == "n":
return False
print("Unknown input.")
def _remove_helm_deployment(chart, namespace):
deployment_name = f"{chart}-{namespace}"
if _get_yn_response(
f"This will remove the deployment {deployment_name}. Continue (y/n)? "
):
command = ["helm", "uninstall", deployment_name, "-n", namespace]
subprocess.check_output(command)
def _delete_namespace(namespace):
if _get_yn_response(
f"This will remove the namespace {namespace}. Continue (y/n)? "
):
command = ["kubectl", "delete", "ns", namespace]
subprocess.check_output(command)
def uninstall(config_manager):
"""Uninstall the monitoring setup.
Arguments:
config_manager {AbstractConfigManager} -- ConfigManager that contains the
configuration of the monitoring setup to be uninstalled.
"""
namespace = config_manager.get_config()["namespace"]
for chart in HELM_CHARTS:
_remove_helm_deployment(chart, namespace)
_delete_namespace(namespace)