mirror of
https://github.com/hyperknot/openfreemap.git
synced 2026-05-21 14:02:15 +00:00
144 lines
3.9 KiB
Python
Executable File
144 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python3
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import json
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from datetime import datetime, timezone
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import click
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import requests
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from dotenv import dotenv_values
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from loadbalancer_lib import OFM_CONFIG_DIR
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from loadbalancer_lib.cloudflare import get_zone_id, set_records_round_robin
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from loadbalancer_lib.telegram_ import telegram_send_message
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AREAS = ['planet', 'monaco']
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@click.group()
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def cli():
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"""
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Manages load-balancing of Round-Robin DNS records
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"""
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@cli.command()
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def check():
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"""
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Runs load-balancing check (triggered by cron every minute)
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"""
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print(f'starting loadbalancer check at: {datetime.now(timezone.utc)}')
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check_or_fix(fix=False)
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@cli.command()
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def fix():
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"""
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Fixes records based on check results
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"""
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print(f'starting loadbalancer fix at: {datetime.now(timezone.utc)}')
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check_or_fix(fix=True)
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def check_or_fix(fix=False):
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with open(OFM_CONFIG_DIR / 'loadbalancer.json') as fp:
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c = json.load(fp)
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# print(c)
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if not c['http_host_list']:
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telegram_send_message(
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'OFM loadbalancer no hosts found on list, terminating',
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c['telegram_token'],
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c['telegram_chat_id'],
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)
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return
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try:
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results_by_ip = {}
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working_hosts = set()
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for area in AREAS:
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results = run_area(c, area)
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for host_ip, host_is_ok in results.items():
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results_by_ip.setdefault(host_ip, True)
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results_by_ip[host_ip] &= host_is_ok
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for host_ip, host_is_ok in results_by_ip.items():
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if not host_is_ok:
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message = f'OFM loadbalancer ERROR with host: {host_ip}'
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telegram_send_message(message, c['telegram_token'], c['telegram_chat_id'])
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else:
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working_hosts.add(host_ip)
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except Exception as e:
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message = f'OFM loadbalancer ERROR with loadbalancer: {e}'
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telegram_send_message(message, c['telegram_token'], c['telegram_chat_id'])
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return
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print(f'working hosts: {sorted(working_hosts)}')
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if fix:
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# if no hosts are detected working, probably a bug in this script
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# fail-safe to include all hosts
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if not working_hosts:
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working_hosts = set(c['http_host_list'])
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message = 'OFM loadbalancer FIX found no working hosts, reverting to full list!'
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telegram_send_message(message, c['telegram_token'], c['telegram_chat_id'])
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updated = update_records(c, working_hosts)
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if updated:
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message = f'OFM loadbalancer FIX modified records, new records: {working_hosts}'
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telegram_send_message(message, c['telegram_token'], c['telegram_chat_id'])
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def run_area(c, area):
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target_version = get_target_version(area)
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print(f'target version: {area}: {target_version}')
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results = {}
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for host_ip in c['http_host_list']:
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try:
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# check_host(c['domain_ledns'], host_ip, area, target_version)
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results[host_ip] = True
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except Exception as e:
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results[host_ip] = False
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print(e)
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return results
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def get_target_version(area):
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url = f'https://assets.openfreemap.com/versions/deployed_{area}.txt'
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response = requests.get(url)
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response.raise_for_status()
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return response.text.strip()
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def update_records(c, working_hosts) -> bool:
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config = dotenv_values(OFM_CONFIG_DIR / 'cloudflare.ini')
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cloudflare_api_token = config['dns_cloudflare_api_token']
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domain = '.'.join(c['domain_ledns'].split('.')[-2:])
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zone_id = get_zone_id(domain, cloudflare_api_token=cloudflare_api_token)
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updated = False
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updated |= set_records_round_robin(
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zone_id=zone_id,
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name=c['domain_ledns'],
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host_ip_set=working_hosts,
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proxied=False,
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ttl=300,
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comment='domain_ledns',
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cloudflare_api_token=cloudflare_api_token,
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)
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return updated
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if __name__ == '__main__':
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cli()
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