NewsBlur-viq/utils/monitor_redis_bgsave.py

#!/usr/local/bin/python3

import sys

sys.path.append("/srv/newsblur")

import datetime
import os
import socket

import requests

from newsblur_web import settings


def main():
    redis_log_path = sys.argv[1]
    t = os.popen("stat -c%Y /srv/newsblur/docker/volumes/redis/")
    timestamp = t.read().split("\n")[0]
    modified = datetime.datetime.fromtimestamp(int(timestamp))
    hostname = socket.gethostname()
    modified_minutes = datetime.datetime.now() - modified
    log_tail = os.popen(f"tail -n 100 {redis_log_path}").read()
    if True:
        # if modified < ten_min_ago:
        requests.post(
            "https://api.mailgun.net/v2/%s/messages" % settings.MAILGUN_SERVER_NAME,
            auth=("api", settings.MAILGUN_ACCESS_KEY),
            data={
                "from": "NewsBlur Redis Monitor: %s <admin@%s.newsblur.com>" % (hostname, hostname),
                "to": [settings.ADMINS[0][1]],
                "subject": "%s hasn't bgsave'd redis in %s!" % (hostname, modified_minutes),
                "text": "Last modified %s: %s ago\n\n----\n\n%s" % (hostname, modified_minutes, log_tail),
            },
        )
    else:
        print(" ---> Redis bgsave fine: %s / %s ago" % (hostname, modified_minutes))


if __name__ == "__main__":
    main()