~launchpad-pqm/launchpad/devel

#!/usr/bin/python -S

#

# Copyright 2009 Canonical Ltd.  This software is licensed under the

# GNU Affero General Public License version 3 (see the file LICENSE).

"""Monitor scripts."""

__metaclass__ = type

__all__ = ['check_script']

import _pythonpath

from datetime import datetime, timedelta

from email.MIMEText import MIMEText

from optparse import OptionParser

from time import strftime

import smtplib

import sys

from canonical.database.sqlbase import connect

from canonical.launchpad.scripts import db_options, logger_options, logger

from canonical.launchpad.scripts.scriptmonitor import check_script

def main():

    # XXX: Tom Haddon 2007-07-12

    # There's a lot of untested stuff here: parsing options and sending

    # emails - this should be moved into a testable location.

    # Also duplicated code in scripts/script-monitor-nagios.py

    parser = OptionParser(

            '%prog [options] (minutes) (host:scriptname) [host:scriptname]'

            )

    db_options(parser)

    logger_options(parser)

    (options, args) = parser.parse_args()

    if len(args) < 2:

        parser.error("Must specify at time in minutes and "

            "at least one host and script")

    # First argument is the number of minutes into the past

    # we want to look for the scripts on the specified hosts

    try:

        minutes_ago, args = int(args[0]), args[1:]

        start_date = datetime.now() - timedelta(minutes=minutes_ago)

        completed_from = strftime("%Y-%m-%d %H:%M:%S", start_date.timetuple())

        completed_to = strftime("%Y-%m-%d %H:%M:%S", datetime.now().timetuple())

        hosts_scripts = []

        for arg in args:

            try:

                hostname, scriptname = arg.split(':')

            except TypeError:

                parser.error(

                    "%r is not in the format 'host:scriptname'" % (arg,))

            hosts_scripts.append((hostname, scriptname))

    except ValueError:

        parser.error("Must specify time in minutes and "

            "at least one host and script")

    log = logger(options)

    try:

        log.debug("Connecting to database")

        con = connect()

        error_found = False

        msg, subj = [], []

        for hostname, scriptname in hosts_scripts:

            failure_msg = check_script(con, log, hostname,

                scriptname, completed_from, completed_to)

            if failure_msg is not None:

                msg.append(failure_msg)

                subj.append("%s:%s" % (hostname, scriptname))

                error_found = 2

        if error_found:

            # Construct our email

            msg = MIMEText('\n'.join(msg))

            msg['Subject'] = "Scripts failed to run: %s" % ", ".join(subj)

            msg['From'] = 'script-failures@launchpad.net'

            msg['Reply-To'] = 'launchpad@lists.canonical.com'

            msg['To'] = 'launchpad@lists.canonical.com'

            # Send out the email

            smtp = smtplib.SMTP()

            smtp.connect()

            smtp.sendmail('script-failures@launchpad.net', ['launchpad@lists.canonical.com'], msg.as_string())

            smtp.close()

            return 2

    except:

        log.exception("Unhandled exception")

        return 1

if __name__ == '__main__':

    sys.exit(main())