forked from mozilla/briar-patch
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kittenherder.py
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/
kittenherder.py
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#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.
""" Host reboot tool
:copyright: (c) 2012 by Mozilla
:license: MPLv2
Assumes Python v2.6+
Usage
-c --config Configuration file (json format)
-w --workers How many worker processes to spawn
-k --kittens What source to use for list of kittens
This can be a url, filename or a regex
default: http://build.mozilla.org/builds/slaves_needing_reboot.txt
--dryrun Do not perform any action, just list what would be done
--filterbase
-d --debug Turn on debug logging
default: False
-l --logpath Path where the log file output is written
default: None
-b --background Fork to a daemon process
default: False
Authors:
bear Mike Taylor <bear@mozilla.com>
"""
import sys, os
import re
import time
import json
import random
import logging
import datetime
import paramiko
import smtplib
import email.utils
from email.mime.text import MIMEText
from multiprocessing import Process, Queue, get_logger, log_to_stderr
from Queue import Empty
from releng import initOptions, initLogs, fetchUrl, runCommand, dbRedis, initKeystore
import releng.remote
log = get_logger()
workQueue = Queue()
resultQueue = Queue()
keyExpire = 172800 # 2 days in seconds (1 day = 86,400 seconds)
urlNeedingReboot = 'http://build.mozilla.org/builds/slaves_needing_reboot.txt'
_defaultOptions = { 'kittens': ('-k', '--kittens', None, 'file or url to use as source of kittens'),
'filter': ('-f', '--filter', None, 'regex filter to apply to list'),
'environ': ('', '--environ', 'prod', 'which environ to process, defaults to prod'),
'workers': ('-w', '--workers', '4', 'how many workers to spawn'),
'filterbase': ('', '--filterbase', '^%s', 'string to insert filter expression into'),
'cachefile': ('', '--cachefile', None, 'filename to store the "have we touched this kitten before" cache'),
'force': ('', '--force', False, 'force processing of a kitten. This ignores the seen cache *AND* SlaveAlloc', 'b'),
'email': ('-e', '--email', False, 'send result email', 'b'),
'redis': ('-r', '--redis', 'localhost:6379', 'Redis connection string'),
'redisdb': ('', '--redisdb', '8', 'Redis database'),
}
def generate(hostlist, tag):
s = '\r\n%s\r\n' % tag
t = ''
m = []
for item in hostlist:
t += item
m.append(item)
if len(t) > 50:
s += '%s\r\n' % ', '.join(m)
t = ''
m = []
s += ' %s\r\n' % ', '.join(m)
return s
def previouslySeen(hostlist, lastrun):
result = ''
for kitten in lastrun:
if kitten in hostlist:
result += '%s, ' % kitten
hostlist.remove(kitten)
if len(result) > 0:
result = ' previously seen: %s' % result[:-2]
return result
def getHistory(kitten):
result = ''
keys = db.keys('kittenherder:*:%s' % kitten)
for key in keys:
d = db.hgetall(key)
result += ' %s ' % key.replace('kittenherder:', '').replace(':%s' % kitten, '')
for f in ('reachable', 'reboot', 'recovery', 'lastseen'):
if f in d:
result += '%s: %s ' % (f, d[f])
result += '\r\n'
return result
# bm-xserve20 {'recovery': True, 'ipmi': False, 'output': ['adding to recovery list because host is not reachable', 'adding to recovery list because last activity is unknown'],
# 'tacfile': '', 'pdu': False, 'fqdn': 'bm-xserve20.build.sjc1.mozilla.com.', 'reboot': False, 'reachable': False, 'lastseen': None,
# 'buildbot': '', 'master': ''}
def sendEmail(data):
if len(data) > 0:
rebootedOS = []
rebootedIPMI = []
rebootedPDU = []
recovered = []
neither = []
body = ''
lastRun = db.lrange('kittenherder:lastrun', 0, -1)
db.ltrim('kittenherder:lastrun', 0, 0)
db.expire('kittenherder:lastrun', keyExpire)
print lastRun
for kitten, result in data:
db.lpush('kittenherder:lastrun', kitten)
print len(result), kitten, result
if len(result) > 0:
if result['reboot']:
if result['ipmi']:
rebootedIPMI.append(kitten)
elif result['pdu']:
rebootedPDU.append(kitten)
else:
rebootedOS.append(kitten)
else:
if result['recovery']:
recovered.append(kitten)
else:
if not result['reachable']:
neither.append(kitten)
if len(rebootedOS) > 0:
prevSeen = previouslySeen(rebootedOS, lastRun)
body += generate(rebootedOS, 'rebooted (SSH)')
body += prevSeen
if len(rebootedPDU) > 0:
prevSeen = previouslySeen(rebootedPDU, lastRun)
body += generate(rebootedPDU, 'rebooted (PDU)')
body += prevSeen
if len(rebootedIPMI) > 0:
prevSeen = previouslySeen(rebootedIPMI, lastRun)
body += generate(rebootedIPMI, 'rebooted (IPMI)')
body += prevSeen
if len(recovered) > 0:
body += '\r\nrecovery needed\r\n'
for kitten in recovered:
body += '%s\r\n%s' % (kitten, getHistory(kitten))
if len(neither) > 0:
body += '\r\nbear needs to look into these\r\n %s\r\n' % ', '.join(neither)
if len(body) > 0:
addr = 'release@mozilla.com'
msg = MIMEText(body)
msg.set_unixfrom('briarpatch')
msg['To'] = email.utils.formataddr(('RelEng', addr))
msg['From'] = email.utils.formataddr(('briarpatch', addr))
msg['Subject'] = '[briar-patch] idle kittens report'
print body
# server = smtplib.SMTP('localhost')
# server.set_debuglevel(True)
# server.sendmail(addr, [addr], msg.as_string())
# server.quit()
def processKittens(options, jobs, results):
remoteEnv = releng.remote.RemoteEnvironment(options.tools)
dNow = datetime.datetime.now()
dDate = dNow.strftime('%Y-%m-%d')
dHour = dNow.strftime('%H')
while True:
try:
job = jobs.get(False)
except Empty:
job = None
if job is not None:
r = {}
if job in remoteEnv.hosts:
info = remoteEnv.hosts[job]
if info['environment'] == options.environ:
if not info['enabled'] and not options.force:
if options.verbose:
log.info('%s not enabled, skipping' % job)
elif len(info['notes']) > 0 and not options.force:
if options.verbose:
log.info('%s has a slavealloc notes field, skipping' % job)
else:
log.info(job)
host = remoteEnv.getHost(job)
r = remoteEnv.check(host, indent=' ', dryrun=options.dryrun, verbose=options.verbose)
print job, r
d = remoteEnv.rebootIfNeeded(host, lastSeen=r['lastseen'], indent=' ', dryrun=options.dryrun, verbose=options.verbose)
for s in ['reboot', 'recovery', 'ipmi', 'pdu']:
r[s] = d[s]
r['output'] += d['output']
hostKey = 'kittenherder:%s.%s:%s' % (dDate, dHour, job)
for key in r:
db.hset(hostKey, key, r[key])
db.expire(hostKey, keyExpire)
print job, r
else:
if options.verbose:
log.info('%s not in requested environment %s (%s), skipping' % (job, options.environ, info['environment']))
else:
if options.verbose:
log.error('%s not listed in slavealloc, skipping' % job)
results.put((job, r))
def loadCache(cachefile):
result = {}
if os.path.isfile(cachefile):
for item in open(cachefile, 'r+'):
kitten, s = item.split(' ')
ts = datetime.datetime.strptime(s.strip(), '%Y-%m-%dT%H:%M:%S')
now = datetime.datetime.now()
elapsed = now - ts
seconds = (elapsed.days * 86400) + elapsed.seconds
if seconds <= 3600:
result[kitten] = ts
return result
def writeCache(cachefile, cache):
h = open(cachefile, 'w+')
for kitten in cache.keys():
ts = cache[kitten]
h.write('%s %s\n' % (kitten, ts.strftime('%Y-%m-%dT%H:%M:%S')))
h.close()
if __name__ == "__main__":
options = initOptions(params=_defaultOptions)
initLogs(options, chatty=False)
if options.cachefile is None:
options.cachefile = os.path.join(options.appPath, 'kittenherder_seen.dat')
if options.kittens is None:
options.kittens = urlNeedingReboot
if options.filter is not None:
reFilter = re.compile(options.filterbase % options.filter)
else:
reFilter = None
db = dbRedis(options)
log.info('Starting')
initKeystore(options)
# if reFilter is None:
# log.error("During this testing phase I'm making it so that --filter is required")
# log.error("Please re-run and specify a filter so we don't accidently process all")
# log.error("slaves or something silly like that -- thanks (bear)")
# sys.exit(1)
if options.verbose:
log.info('retrieving list of kittens to wrangle')
seenCache = loadCache(options.cachefile)
kittens = None
if options.kittens.lower().startswith('http://'):
# fetch url, and yes, we assume it's a text file
items = fetchUrl(options.kittens)
# and then make it iterable
if items is not None:
kittens = items.split('\n')
else:
kittens = []
else:
if os.path.exists(options.kittens):
kittens = open(options.kittens, 'r').readlines()
else:
if ',' in options.kittens:
kittens = options.kittens.split(',')
else:
kittens = []
kittens.append(options.kittens)
if kittens is not None:
results = []
workers = []
try:
w = int(options.workers)
except:
log.error('invalid worker count value [%s] - using default of 4' % options.workers)
w = 4
for n in range(0, w):
p = Process(target=processKittens, args=(options, workQueue, resultQueue))
p.start()
workers.append(p)
# one slave per line:
# slavename, enabled yes/no
# talos-r4-snow-078,Yes
# tegra-050,No
for item in kittens:
try:
if ',' in item:
kitten = item.split(',')[0]
else:
kitten = item
if reFilter is not None and reFilter.search(kitten) is None:
log.debug('%s rejected by filter' % kitten)
kitten = None
except:
kitten = None
log.error('unable to parse line [%s]' % item, exc_info=True)
if kitten is not None:
if kitten in seenCache:
if options.force:
log.info("%s has been processed within the last hour but is being --force'd" % kitten)
else:
log.info('%s has been processed within the last hour, skipping' % kitten)
kitten = None
if kitten is not None:
workQueue.put(kitten)
results.append(kitten)
if options.verbose:
log.info('waiting for workers to finish...')
emailItems = []
while len(results) > 0:
try:
item = resultQueue.get(False)
except Empty:
item = None
if item is not None:
kitten, result = item
emailItems.append(item)
if kitten in results:
results.remove(kitten)
seenCache[kitten] = datetime.datetime.now()
if options.email:
sendEmail(emailItems)
if options.verbose:
log.info('workers should be all done - closing up shop')
if len(workers) > 0:
# now lets wait till they are all done
for p in workers:
p.terminate()
p.join()
writeCache(options.cachefile, seenCache)
log.info('Finished')