625bb48d13
This adds severity as a logstash field for every oslo formatted log line, and does not add any lines which are at DEBUG level. This means we no longer rely on the level=INFO query paremeter in order to remove DEBUG lines, so we will avoid sending them to logstash regardless of whether os-loganalyze is used. Change-Id: I8c4ac76a7fa0c3badd82fc7c54959ef6eb052732
574 lines
21 KiB
Python
574 lines
21 KiB
Python
#!/usr/bin/python2
|
|
#
|
|
# Copyright 2013 Hewlett-Packard Development Company, L.P.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
import argparse
|
|
import cStringIO
|
|
import daemon
|
|
import gear
|
|
import gzip
|
|
import json
|
|
import logging
|
|
import os
|
|
import Queue
|
|
import re
|
|
import select
|
|
import socket
|
|
import subprocess
|
|
import sys
|
|
import threading
|
|
import time
|
|
import urllib2
|
|
import yaml
|
|
|
|
import paho.mqtt.publish as publish
|
|
|
|
try:
|
|
import daemon.pidlockfile as pidfile_mod
|
|
except ImportError:
|
|
import daemon.pidfile as pidfile_mod
|
|
|
|
|
|
def semi_busy_wait(seconds):
|
|
# time.sleep() may return early. If it does sleep() again and repeat
|
|
# until at least the number of seconds specified has elapsed.
|
|
start_time = time.time()
|
|
while True:
|
|
time.sleep(seconds)
|
|
cur_time = time.time()
|
|
seconds = seconds - (cur_time - start_time)
|
|
if seconds <= 0.0:
|
|
return
|
|
|
|
|
|
class FilterException(Exception):
|
|
pass
|
|
|
|
|
|
class CRM114Filter(object):
|
|
def __init__(self, script, path, build_status):
|
|
self.p = None
|
|
self.script = script
|
|
self.path = path
|
|
self.build_status = build_status
|
|
if build_status not in ['SUCCESS', 'FAILURE']:
|
|
return
|
|
if not os.path.exists(path):
|
|
os.makedirs(path)
|
|
args = [script, path, build_status]
|
|
self.p = subprocess.Popen(args,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
stdin=subprocess.PIPE,
|
|
close_fds=True)
|
|
|
|
def process(self, data):
|
|
if not self.p:
|
|
return True
|
|
self.p.stdin.write(data['message'].encode('utf-8') + '\n')
|
|
(r, w, x) = select.select([self.p.stdout], [],
|
|
[self.p.stdin, self.p.stdout], 20)
|
|
if not r:
|
|
self.p.kill()
|
|
raise FilterException('Timeout reading from CRM114')
|
|
r = self.p.stdout.readline()
|
|
if not r:
|
|
err = self.p.stderr.read()
|
|
if err:
|
|
raise FilterException(err)
|
|
else:
|
|
raise FilterException('Early EOF from CRM114')
|
|
r = r.strip()
|
|
data['error_pr'] = float(r)
|
|
return True
|
|
|
|
def _catchOSError(self, method):
|
|
try:
|
|
method()
|
|
except OSError:
|
|
logging.exception("Subprocess cleanup failed.")
|
|
|
|
def close(self):
|
|
if not self.p:
|
|
return
|
|
# CRM114 should die when its stdinput is closed. Close that
|
|
# fd along with stdout and stderr then return.
|
|
self._catchOSError(self.p.stdin.close)
|
|
self._catchOSError(self.p.stdout.close)
|
|
self._catchOSError(self.p.stderr.close)
|
|
self._catchOSError(self.p.wait)
|
|
|
|
|
|
class CRM114FilterFactory(object):
|
|
name = "CRM114"
|
|
|
|
def __init__(self, script, basepath):
|
|
self.script = script
|
|
self.basepath = basepath
|
|
# Precompile regexes
|
|
self.re_remove_suffix = re.compile(r'(\.[^a-zA-Z]+)?(\.gz)?$')
|
|
self.re_remove_dot = re.compile(r'\.')
|
|
|
|
def create(self, fields):
|
|
# We only want the basename so that the same logfile at different
|
|
# paths isn't treated as different
|
|
filename = os.path.basename(fields['filename'])
|
|
# We want to collapse any numeric or compression suffixes so that
|
|
# nova.log and nova.log.1 and nova.log.1.gz are treated as the same
|
|
# logical file
|
|
filename = self.re_remove_suffix.sub(r'', filename)
|
|
filename = self.re_remove_dot.sub('_', filename)
|
|
path = os.path.join(self.basepath, filename)
|
|
return CRM114Filter(self.script, path, fields['build_status'])
|
|
|
|
|
|
class SeverityFilter(object):
|
|
DATEFMT = '\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}((\.|\,)\d{3,6})?'
|
|
SEVERITYFMT = '(DEBUG|INFO|WARNING|ERROR|TRACE|AUDIT|CRITICAL)'
|
|
OSLO_LOGMATCH = ('^(?P<date>%s)(?P<line>(?P<pid> \d+)? '
|
|
'(?P<severity>%s).*)' %
|
|
(DATEFMT, SEVERITYFMT))
|
|
OSLORE = re.compile(OSLO_LOGMATCH)
|
|
|
|
def process(self, data):
|
|
msg = data['message']
|
|
m = self.OSLORE.match(msg)
|
|
if m:
|
|
data['severity'] = m.group('severity')
|
|
if data['severity'].lower == 'debug':
|
|
# Ignore debug-level lines
|
|
return False
|
|
return True
|
|
|
|
def close(self):
|
|
pass
|
|
|
|
|
|
class SeverityFilterFactory(object):
|
|
name = "Severity"
|
|
|
|
def create(self, fields):
|
|
return SeverityFilter()
|
|
|
|
|
|
class LogRetriever(threading.Thread):
|
|
def __init__(self, gearman_worker, filters, logq, mqtt=None):
|
|
threading.Thread.__init__(self)
|
|
self.gearman_worker = gearman_worker
|
|
self.filters = filters
|
|
self.logq = logq
|
|
self.mqtt = mqtt
|
|
|
|
def run(self):
|
|
while True:
|
|
try:
|
|
self._handle_event()
|
|
except:
|
|
logging.exception("Exception retrieving log event.")
|
|
|
|
def _handle_event(self):
|
|
fields = {}
|
|
log_lines = None
|
|
source_url = ''
|
|
job = self.gearman_worker.getJob()
|
|
try:
|
|
arguments = json.loads(job.arguments.decode('utf-8'))
|
|
source_url = arguments['source_url']
|
|
retry = arguments['retry']
|
|
event = arguments['event']
|
|
logging.debug("Handling event: " + json.dumps(event))
|
|
fields = event.get('fields') or event.get('@fields')
|
|
tags = event.get('tags') or event.get('@tags')
|
|
if fields['build_status'] != 'ABORTED':
|
|
# Handle events ignoring aborted builds. These builds are
|
|
# discarded by zuul.
|
|
log_lines = self._retrieve_log(source_url, retry)
|
|
|
|
try:
|
|
all_filters = []
|
|
for f in self.filters:
|
|
logging.debug("Adding filter: %s" % f.name)
|
|
all_filters.append(f.create(fields))
|
|
filters = all_filters
|
|
|
|
logging.debug("Pushing " + str(len(log_lines)) +
|
|
" log lines.")
|
|
base_event = {}
|
|
base_event.update(fields)
|
|
base_event["tags"] = tags
|
|
for line in log_lines:
|
|
keep_line = True
|
|
out_event = base_event.copy()
|
|
out_event["message"] = line
|
|
new_filters = []
|
|
for f in filters:
|
|
if not keep_line:
|
|
new_filters.append(f)
|
|
continue
|
|
try:
|
|
keep_line = f.process(out_event)
|
|
new_filters.append(f)
|
|
except FilterException:
|
|
logging.exception("Exception filtering event: "
|
|
"%s" % line.encode("utf-8"))
|
|
filters = new_filters
|
|
if keep_line:
|
|
self.logq.put(out_event)
|
|
finally:
|
|
for f in all_filters:
|
|
f.close()
|
|
job.sendWorkComplete()
|
|
# Only send mqtt events for log files we processed.
|
|
if self.mqtt and log_lines:
|
|
msg = json.dumps({
|
|
'build_uuid': fields.get('build_uuid'),
|
|
'source_url': source_url,
|
|
'status': 'success',
|
|
})
|
|
self.mqtt.publish_single(msg, fields.get('project'),
|
|
fields.get('build_change'),
|
|
'retrieve_logs',
|
|
fields.get('build_queue'))
|
|
except Exception as e:
|
|
logging.exception("Exception handling log event.")
|
|
job.sendWorkException(str(e).encode('utf-8'))
|
|
if self.mqtt:
|
|
msg = json.dumps({
|
|
'build_uuid': fields.get('build_uuid'),
|
|
'source_url': source_url,
|
|
'status': 'failure',
|
|
})
|
|
self.mqtt.publish_single(msg, fields.get('project'),
|
|
fields.get('build_change'),
|
|
'retrieve_logs',
|
|
fields.get('build_queue'))
|
|
|
|
def _retrieve_log(self, source_url, retry):
|
|
# TODO (clarkb): This should check the content type instead of file
|
|
# extension for determining if gzip was used.
|
|
gzipped = False
|
|
raw_buf = b''
|
|
try:
|
|
gzipped, raw_buf = self._get_log_data(source_url, retry)
|
|
except urllib2.HTTPError as e:
|
|
if e.code == 404:
|
|
logging.info("Unable to retrieve %s: HTTP error 404" %
|
|
source_url)
|
|
else:
|
|
logging.exception("Unable to get log data.")
|
|
except Exception:
|
|
# Silently drop fatal errors when retrieving logs.
|
|
# TODO (clarkb): Handle these errors.
|
|
# Perhaps simply add a log message to raw_buf?
|
|
logging.exception("Unable to get log data.")
|
|
if gzipped:
|
|
logging.debug("Decompressing gzipped source file.")
|
|
raw_strIO = cStringIO.StringIO(raw_buf)
|
|
f = gzip.GzipFile(fileobj=raw_strIO)
|
|
buf = f.read().decode('utf-8')
|
|
raw_strIO.close()
|
|
f.close()
|
|
else:
|
|
logging.debug("Decoding source file.")
|
|
buf = raw_buf.decode('utf-8')
|
|
return buf.splitlines()
|
|
|
|
def _get_log_data(self, source_url, retry):
|
|
gzipped = False
|
|
try:
|
|
# TODO(clarkb): We really should be using requests instead
|
|
# of urllib2. urllib2 will automatically perform a POST
|
|
# instead of a GET if we provide urlencoded data to urlopen
|
|
# but we need to do a GET. The parameters are currently
|
|
# hardcoded so this should be ok for now.
|
|
logging.debug("Retrieving: " + source_url + ".gz?level=INFO")
|
|
req = urllib2.Request(source_url + ".gz?level=INFO")
|
|
req.add_header('Accept-encoding', 'gzip')
|
|
r = urllib2.urlopen(req)
|
|
except urllib2.URLError:
|
|
try:
|
|
# Fallback on GETting unzipped data.
|
|
logging.debug("Retrieving: " + source_url + "?level=INFO")
|
|
r = urllib2.urlopen(source_url + "?level=INFO")
|
|
except:
|
|
logging.exception("Unable to retrieve source file.")
|
|
raise
|
|
except:
|
|
logging.exception("Unable to retrieve source file.")
|
|
raise
|
|
if ('gzip' in r.info().get('Content-Type', '') or
|
|
'gzip' in r.info().get('Content-Encoding', '')):
|
|
gzipped = True
|
|
|
|
raw_buf = r.read()
|
|
# Hack to read all of Jenkins console logs as they upload
|
|
# asynchronously. After each attempt do an exponential backup before
|
|
# the next request for up to 255 seconds total, if we do not
|
|
# retrieve the entire file. Short circuit when the end of file string
|
|
# for console logs, '\n</pre>\n', is read.
|
|
if (retry and not gzipped and
|
|
raw_buf[-8:].decode('utf-8') != '\n</pre>\n'):
|
|
content_len = len(raw_buf)
|
|
backoff = 1
|
|
while backoff < 129:
|
|
# Try for up to 255 seconds to retrieve the complete log file.
|
|
try:
|
|
logging.debug(str(backoff) + " Retrying fetch of: " +
|
|
source_url + "?level=INFO")
|
|
logging.debug("Fetching bytes=" + str(content_len) + '-')
|
|
req = urllib2.Request(source_url + "?level=INFO")
|
|
req.add_header('Range', 'bytes=' + str(content_len) + '-')
|
|
r = urllib2.urlopen(req)
|
|
raw_buf += r.read()
|
|
content_len = len(raw_buf)
|
|
except urllib2.HTTPError as e:
|
|
if e.code == 416:
|
|
logging.exception("Index out of range.")
|
|
else:
|
|
raise
|
|
finally:
|
|
if raw_buf[-8:].decode('utf-8') == '\n</pre>\n':
|
|
break
|
|
semi_busy_wait(backoff)
|
|
backoff += backoff
|
|
|
|
return gzipped, raw_buf
|
|
|
|
|
|
class StdOutLogProcessor(object):
|
|
def __init__(self, logq, pretty_print=False):
|
|
self.logq = logq
|
|
self.pretty_print = pretty_print
|
|
|
|
def handle_log_event(self):
|
|
log = self.logq.get()
|
|
if self.pretty_print:
|
|
print(json.dumps(log, sort_keys=True,
|
|
indent=4, separators=(',', ': ')))
|
|
else:
|
|
print(json.dumps(log))
|
|
# Push each log event through to keep logstash up to date.
|
|
sys.stdout.flush()
|
|
|
|
|
|
class INETLogProcessor(object):
|
|
socket_type = None
|
|
|
|
def __init__(self, logq, host, port):
|
|
self.logq = logq
|
|
self.host = host
|
|
self.port = port
|
|
self.socket = None
|
|
|
|
def _connect_socket(self):
|
|
logging.debug("Creating socket.")
|
|
self.socket = socket.socket(socket.AF_INET, self.socket_type)
|
|
self.socket.connect((self.host, self.port))
|
|
|
|
def handle_log_event(self):
|
|
log = self.logq.get()
|
|
try:
|
|
if self.socket is None:
|
|
self._connect_socket()
|
|
self.socket.sendall((json.dumps(log) + '\n').encode('utf-8'))
|
|
except:
|
|
logging.exception("Exception sending INET event.")
|
|
# Logstash seems to take about a minute to start again. Wait 90
|
|
# seconds before attempting to reconnect. If logstash is not
|
|
# available after 90 seconds we will throw another exception and
|
|
# die.
|
|
semi_busy_wait(90)
|
|
self._connect_socket()
|
|
self.socket.sendall((json.dumps(log) + '\n').encode('utf-8'))
|
|
|
|
|
|
class UDPLogProcessor(INETLogProcessor):
|
|
socket_type = socket.SOCK_DGRAM
|
|
|
|
|
|
class TCPLogProcessor(INETLogProcessor):
|
|
socket_type = socket.SOCK_STREAM
|
|
|
|
|
|
class PushMQTT(object):
|
|
def __init__(self, hostname, base_topic, port=1883, client_id=None,
|
|
keepalive=60, will=None, auth=None, tls=None, qos=0):
|
|
self.hostname = hostname
|
|
self.port = port
|
|
self.client_id = client_id
|
|
self.keepalive = 60
|
|
self.will = will
|
|
self.auth = auth
|
|
self.tls = tls
|
|
self.qos = qos
|
|
self.base_topic = base_topic
|
|
|
|
def _generate_topic(self, project, job_id, action):
|
|
return '/'.join([self.base_topic, project, job_id, action])
|
|
|
|
def publish_single(self, msg, project, job_id, action, build_queue=None):
|
|
if job_id:
|
|
topic = self._generate_topic(project, job_id, action)
|
|
elif build_queue:
|
|
topic = self._generate_topic(project, build_queue, action)
|
|
else:
|
|
topic = self.base_topic + '/' + project
|
|
|
|
publish.single(topic, msg, hostname=self.hostname,
|
|
port=self.port, client_id=self.client_id,
|
|
keepalive=self.keepalive, will=self.will,
|
|
auth=self.auth, tls=self.tls, qos=self.qos)
|
|
|
|
|
|
class Server(object):
|
|
def __init__(self, config, debuglog):
|
|
# Config init.
|
|
self.config = config
|
|
self.gearman_host = self.config['gearman-host']
|
|
self.gearman_port = self.config['gearman-port']
|
|
self.output_host = self.config['output-host']
|
|
self.output_port = self.config['output-port']
|
|
self.output_mode = self.config['output-mode']
|
|
mqtt_host = self.config.get('mqtt-host')
|
|
mqtt_port = self.config.get('mqtt-port', 1883)
|
|
mqtt_user = self.config.get('mqtt-user')
|
|
mqtt_pass = self.config.get('mqtt-pass')
|
|
mqtt_topic = self.config.get('mqtt-topic', 'gearman-subunit')
|
|
mqtt_ca_certs = self.config.get('mqtt-ca-certs')
|
|
mqtt_certfile = self.config.get('mqtt-certfile')
|
|
mqtt_keyfile = self.config.get('mqtt-keyfile')
|
|
# Pythong logging output file.
|
|
self.debuglog = debuglog
|
|
self.retriever = None
|
|
self.logqueue = Queue.Queue(16384)
|
|
self.processor = None
|
|
self.filter_factories = []
|
|
# Run the severity filter first so it can filter out chatty
|
|
# logs.
|
|
self.filter_factories.append(SeverityFilterFactory())
|
|
crmscript = self.config.get('crm114-script')
|
|
crmdata = self.config.get('crm114-data')
|
|
if crmscript and crmdata:
|
|
self.filter_factories.append(
|
|
CRM114FilterFactory(crmscript, crmdata))
|
|
# Setup MQTT
|
|
self.mqtt = None
|
|
if mqtt_host:
|
|
auth = None
|
|
if mqtt_user:
|
|
auth = {'username': mqtt_user}
|
|
if mqtt_pass:
|
|
auth['password'] = mqtt_pass
|
|
tls = None
|
|
if mqtt_ca_certs:
|
|
tls = {'ca_certs': mqtt_ca_certs, 'certfile': mqtt_certfile,
|
|
'keyfile': mqtt_keyfile}
|
|
|
|
self.mqtt = PushMQTT(mqtt_host, mqtt_topic, port=mqtt_port,
|
|
auth=auth, tls=tls)
|
|
|
|
def setup_logging(self):
|
|
if self.debuglog:
|
|
logging.basicConfig(format='%(asctime)s %(message)s',
|
|
filename=self.debuglog, level=logging.DEBUG)
|
|
else:
|
|
# Prevent leakage into the logstash log stream.
|
|
logging.basicConfig(level=logging.CRITICAL)
|
|
logging.debug("Log pusher starting.")
|
|
|
|
def wait_for_name_resolution(self, host, port):
|
|
while True:
|
|
try:
|
|
socket.getaddrinfo(host, port)
|
|
except socket.gaierror as e:
|
|
if e.errno == socket.EAI_AGAIN:
|
|
logging.debug("Temporary failure in name resolution")
|
|
time.sleep(2)
|
|
continue
|
|
else:
|
|
raise
|
|
break
|
|
|
|
def setup_retriever(self):
|
|
hostname = socket.gethostname()
|
|
gearman_worker = gear.Worker(hostname + b'-pusher')
|
|
self.wait_for_name_resolution(self.gearman_host, self.gearman_port)
|
|
gearman_worker.addServer(self.gearman_host,
|
|
self.gearman_port)
|
|
gearman_worker.registerFunction(b'push-log')
|
|
self.retriever = LogRetriever(gearman_worker, self.filter_factories,
|
|
self.logqueue, mqtt=self.mqtt)
|
|
|
|
def setup_processor(self):
|
|
if self.output_mode == "tcp":
|
|
self.processor = TCPLogProcessor(self.logqueue,
|
|
self.output_host,
|
|
self.output_port)
|
|
elif self.output_mode == "udp":
|
|
self.processor = UDPLogProcessor(self.logqueue,
|
|
self.output_host,
|
|
self.output_port)
|
|
else:
|
|
# Note this processor will not work if the process is run as a
|
|
# daemon. You must use the --foreground option.
|
|
self.processor = StdOutLogProcessor(self.logqueue)
|
|
|
|
def main(self):
|
|
self.setup_retriever()
|
|
self.setup_processor()
|
|
|
|
self.retriever.daemon = True
|
|
self.retriever.start()
|
|
|
|
while True:
|
|
try:
|
|
self.processor.handle_log_event()
|
|
except:
|
|
logging.exception("Exception processing log event.")
|
|
raise
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument("-c", "--config", required=True,
|
|
help="Path to yaml config file.")
|
|
parser.add_argument("-d", "--debuglog",
|
|
help="Enable debug log. "
|
|
"Specifies file to write log to.")
|
|
parser.add_argument("--foreground", action='store_true',
|
|
help="Run in the foreground.")
|
|
parser.add_argument("-p", "--pidfile",
|
|
default="/var/run/jenkins-log-pusher/"
|
|
"jenkins-log-gearman-worker.pid",
|
|
help="PID file to lock during daemonization.")
|
|
args = parser.parse_args()
|
|
|
|
with open(args.config, 'r') as config_stream:
|
|
config = yaml.load(config_stream)
|
|
server = Server(config, args.debuglog)
|
|
|
|
if args.foreground:
|
|
server.setup_logging()
|
|
server.main()
|
|
else:
|
|
pidfile = pidfile_mod.TimeoutPIDLockFile(args.pidfile, 10)
|
|
with daemon.DaemonContext(pidfile=pidfile):
|
|
server.setup_logging()
|
|
server.main()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|