Check if drive is still mounted on a linux system and send notification through Slack

check-mount.py

#!/usr/bin/python
__author__ = 'Giorgio Crivellari'
__version__ = "0.1"

import os
import sys
import socket
import urllib2

def check_mount(mountpoint):
    if os.path.ismount(mountpoint):
       return True
    return False

def help():
    print "Usage: monit-fs <mount-point> <slack-community> <slack-token> <slack-channel>"
    print "\nExample:\n" \
          "monit-fs.py /var/test apptothecloud XXXXXXXXXXX '#stack'"
    sys.exit(0)

def public_ip():
    ret = urllib2.urlopen('https://enabledns.com/ip')
    return ret.read()

def slackmsg(mp):
    msg = "ALERT: problem occurred on machine %s (%s) - mount point %s is not mounted" % \
        (socket.gethostname().upper(), public_ip(), mp)
    return msg

def slackbot(community, token, channel, msg):
    uri = "https://%s.slack.com/services/hooks/slackbot?token=%s&channel=%%23%s" % (community, token, channel)
    req = urllib2.Request(uri, msg)
    response = urllib2.urlopen(req)
    result = response.read()
    if result == "ok":
        return True
    return False

def main():
    if len(sys.argv) != 5:
        help()

    mp = sys.argv[1]
    scommunity = sys.argv[2]
    stoken = sys.argv[3]
    schannel = sys.argv[4]

    if '#' in schannel:
        schannel = schannel[1:]

    if not check_mount(mp):
        slackbot(scommunity, stoken, schannel, slackmsg(mp))
        sys.exit(2)

    sys.exit(0)

if __name__ == '__main__':
    main()