Script to remove all future maintenance windows from your PagerDuty account or your PagerDuty services

remove_future_maintenance_windows.py

#!/usr/bin/env python
#
# Copyright (c) 2016, PagerDuty, Inc. <[email protected]>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of PagerDuty Inc nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL PAGERDUTY INC BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Script to remove all future maintenance windows within your account
# CLI Usage: ./remove_future_maintenance_windows api_key [service_ids...]
# 	api_key: Your PagerDuty API access token
# 	service_ids: Unique identifier(s) for any service(s) you want to delete the maintenance windows from

import requests
import sys
import json

base_url = 'https://api.pagerduty.com/maintenance_windows'

def get_future_maintenance_windows(headers, output=[], offset=0):
	payload = {
		'filter': 'future',
		'limit': 100,
		'offset': offset
	}
	r = requests.get(base_url, headers=headers, params=payload)
	output.extend(r.json()['maintenance_windows'])
	if r.json()['more'] == True:
		return get_future_maintenance_windows(headers, output, offset + 100)
	else:
		return output

def delete_maintenance_window(headers, window_id):
	url = base_url + '/' + window_id
	r = requests.delete(url, headers=headers)
	if r.status_code == 204:
		print 'Successfully deleted maintenance window with ID ' + window_id
	else:
		print 'Error: Failed to delete maintenance window with ID ' + window_id + '\nStatus code: ' + str(r.status_code) + '\nResponse: ' + r.text

def update_maintenance_window(headers, window):
	url = base_url + '/' + window['id']
	payload = {
		'maintenance_window': window
	}
	r = requests.put(url, headers=headers, data=json.dumps(payload))
	if r.status_code == 200:
		print 'Successfully deleted service from maintenance window with ID ' + window['id']
	else:
		print 'Error: Failed to delete service from maintenance window with ID ' + window['id'] + '\nStatus code: ' + str(r.status_code) + '\nResponse: ' + r.text

def remove_all_future_maintenance_windows(api_key):
	headers = {
		'Authorization': 'Token token=' + api_key,
		'Content-type': 'application/json',
		'Accept': 'application/vnd.pagerduty+json;version=2'
	}
	all_windows = get_future_maintenance_windows(headers)
	print 'Total number of future maintenance windows: ' + str(len(all_windows))
	for window in all_windows:
		delete_maintenance_window(headers, window['id'])

def update_future_maintenance_windows(api_key, service_list):
	headers = {
		'Authorization': 'Token token=' + api_key,
		'Content-type': 'application/json',
		'Accept': 'application/vnd.pagerduty+json;version=2'
	}
	all_windows = get_future_maintenance_windows(headers)
	for service_id in service_list:
		for window in all_windows:
			for index, service in enumerate(window['services']):
				if service['id'] == service_id:
					del window['services'][index]
					update_maintenance_window(headers, window)

if __name__=='__main__':
	if len(sys.argv) == 1:
		print 'Error: You did not enter any parameters.\nUsage: ./remove_future_maintenance_windows api_key [service_ids...]\n\tapi_key: Your PagerDuty API access token\n\tservice_ids: Unique identifier(s) for any service(s) you want to delete the maintenance windows from'
	elif len(sys.argv) == 2:
		print 'Warning! You did not enter any services. All future maintenance windows will be deleted...'
		remove_all_future_maintenance_windows(sys.argv[1])
	else:
		service_list = []
		for service in sys.argv[2:]:
			service_list.append(service)
		update_future_maintenance_windows(sys.argv[1], service_list)