import agent_util
import sys
import os
from datetime import datetime, timedelta
class LogstashForwarderPlugin(agent_util.Plugin):
textkey = "logstash_forwarder"
label = "Logstash Forwarder"
@classmethod
def get_metadata(self, config):
status = agent_util.SUPPORTED
msg = None
if not os.path.isdir("/var/log/logstash-forwarder"):
self.log.info("logstash-forwarder not found")
status = agent_util.UNSUPPORTED
msg = "logstash-forwarder log folder not found!"
return {}
data = {
"logs_per_minute": {
"label": "Logs forwarded per minute",
"options": None,
"status": status,
"error_message": msg,
"unit": None,
}
}
return data
def check(self, textkey, option, config):
cmd = 'tail -25 /var/log/logstash-forwarder/logstash-forwarder.err'
retcode, output = agent_util.execute_command(cmd)
logs_per_min = 0
last_minute = output.strip().split('\n')
for item in last_minute:
if 'processing' in item:
line = item.split()
time = ' '.join(line[0:2])
parts = time.split('.')
time = datetime.strptime(parts[0], "%Y/%m/%d %H:%M:%S")
time = time.replace(microsecond=int(parts[1]))
if (datetime.now() - timedelta(seconds=60)) > time: continue
else: logs_per_min = logs_per_min + int(line[-2])
else: continue
return logs_per_min