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Drop Events Filter

Output filter: drop-events

This plugin drops events by include/exclude criteria for each field. The filters property contains a list of fields. For each field, you can specify a regular expression to keep (include) or drop (exclude) the event from processing.

Configuration

The folowing example configuration reads log files from /var/log and applies various filters with the following rules:

  • Keep logs with severity error and warn
  • Drop logs with severity debug and info
  • Drop logs from service ntpd
  • Keep logs when message containes the words critical,error,auth or failed

# tail server logs
input: 
  files:
    - '/var/log/**/*.log'

outputFilter:
  dropEvents:
    module: drop-events
    debug: false
    filters:
      severity:
        # don't drop logs with severity error and warn
        include: !!js/regexp /error|warn/i
        # drop logs with severity debug and info 
        exclude: !!js/regexp /debug|info/i
      service:
        # drop logs from service ntpd
        exclude: !!js/regexp ntpd
      message: 
        # don't drop logs with 
        # messages containing the words critical,error,auth or failed 
        include: !js/regexp /critical|auth|error|failed/

Run Logagent with your config:

logagent --config logagent-example-config.yml --yaml