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alerta_alerta/alerta/logger/daemon.py
Nick Satterly 74e56219b7 mailer
2013-03-08 20:57:13 +00:00

96 lines
3 KiB
Python

import time
import json
import urllib2
import datetime
from alerta.common import log as logging
from alerta.common import config
from alerta.common.daemon import Daemon
from alerta.common.mq import Messaging, MessageHandler
from alerta.alert import Alert, Heartbeat
from alerta.common.utils import DateEncoder
Version = '2.0.0'
LOG = logging.getLogger(__name__)
CONF = config.CONF
class LoggerMessage(MessageHandler):
def on_message(self, headers, body):
LOG.debug("Received: %s", body)
alert = Alert.parse_alert(body).get_body()
if alert:
LOG.info('%s : [%s] %s', alert['lastReceiveId'], alert['status'], alert['summary'])
# TODO(nsatterl): is this still required?
#if 'tags' not in alert or not alert['tags']: # Kibana GUI borks if tags are null
# alert['tags'] = 'none'
LOG.debug('alert last receivetime %s', alert['lastReceiveTime'])
document = {
'@message': alert['summary'],
'@source': alert['resource'],
'@source_host': 'not_used',
'@source_path': alert['origin'],
'@tags': alert['tags'],
'@timestamp': json.dumps(alert['lastReceiveTime'], cls=DateEncoder),
'@type': alert['type'],
'@fields': str(alert)
}
LOG.debug('Index payload %s', document)
index_url = "http://%s:%s/%s/%s" % (CONF.es_host, CONF.es_port,
datetime.datetime.utcnow().strftime(CONF.es_index), alert['type'])
LOG.debug('Index URL: %s', index_url)
try:
response = urllib2.urlopen(index_url, json.dumps(document)).read()
except Exception, e:
LOG.error('%s : Alert indexing to %s failed - %s', alert['lastReceiveId'], index_url, e)
return
try:
es_id = json.loads(response)['_id']
LOG.info('%s : Alert indexed at %s/%s', alert['lastReceiveId'], index_url, es_id)
except Exception:
pass
class LoggerDaemon(Daemon):
"""
Index alerts in ElasticSearch using Logstash format so that logstash GUI and/or Kibana can be used as front-ends
"""
def run(self):
self.running = True
# Connect to message queue
self.mq = Messaging()
self.mq.connect(callback=LoggerMessage())
self.mq.subscribe(destination=CONF.outbound_queue)
while not self.shuttingdown:
try:
LOG.debug('Waiting for log messages...')
time.sleep(CONF.loop_every)
LOG.debug('Send heartbeat...')
heartbeat = Heartbeat(version=Version)
self.mq.send(heartbeat)
except (KeyboardInterrupt, SystemExit):
self.shuttingdown = True
LOG.info('Shutdown request received...')
self.running = False
LOG.info('Disconnecting from message broker...')
self.mq.disconnect()