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Alert clear #4

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Alert clear #4

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03795bc
Add a check to cancel out alert/recover in same pass
May 18, 2020
2e0614a
remove
May 18, 2020
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26 changes: 18 additions & 8 deletions modules/syslog.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,10 @@
class SyslogCheckerRule(RuleType):
required_options = set(['regex_file'])

def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.regex_rules = self.load_regex_rules()

def load_regex_rules(self):
rules = None
try:
Expand All @@ -23,15 +27,11 @@ def to_localtz(self, ts):
return ts.astimezone(tz.tzlocal())

def add_data(self, data):
regex_rules = self.load_regex_rules()
if not regex_rules:
return
# check if any of the datapoints match any of the defined regexs
matched = []
for point in data:
if 'syslog_message' not in point or 'syslog_severity' not in point or 'syslog_hostname' not in point:
continue
for rule in regex_rules:
for rule in self.regex_rules:
r = re.compile(rule['regex'])
m = r.match(point['syslog_message'])
if not m:
Expand All @@ -53,6 +53,16 @@ def add_data(self, data):
point['syslog_hostname'],
point['entity']
)
if match not in matched:
self.add_match(point)
matched.append(match)
if point['status'] == 'recover':
# dont alert on points that alert and clear in the same cycle
cleared = False
for pt in self.matches:
m = '{}:{}:{}'.format(pt['name'], pt['syslog_hostname'], pt['entity'])
if m == match and pt['status'] == 'alerting':
elastalert_logger.info('{} has recovered, removing'.format(m))
self.matches.remove(pt)
cleared = True
if cleared:
continue
elastalert_logger.info('{} on {}'.format(point['status'], match))
self.add_match(point)