logagent-config.yml

# Example for Logagent configuration
# Plase adjust following settings: 
#   input.novaSDS011.comPort
#   input.gps.comPort
#   input.nodejsMonitor.SPM_TOKEN
#   output.mqtt.url
#   output.elasticsearch.url
#   output.elasticsearch.indices

options: 
  # suppress log event output to console
  suppress: true
  # Write Logagent stats in the Logagent log file /var/log/logagent.log
  # The stats show how many events have been processed and shipped
  # Log interval in seconds
  printStats: 60

input:
  novaSDS011:
    module: input-nova-sda011
    # Find TTY name: ls -l /dev/tty* | grep 'dialout'
    comPort: /dev/ttyUSB0
    # Working period in minutes. The setting is persistent 
    # for the connected Nova SDS011 sensor
    # 1 minute measurement interval
    workingPeriod: 1

  gps: 
    module: logagent-gps
    # Find TTY name: ls -l /dev/tty* | grep 'dialout'
    comPort: /dev/ttyACM0
    # Emit only location event, to share the location with nova sensor
    emitOnlyLocationEvent: true
    # disable debug output
    debug: false
  
  # Optional, monitor logagent and device performance
  # Create in Sematext Cloud a Node.js monitoring app
  # to obtain the SPM_TOKEN
  nodejsMonitor: 
    module: @sematext/logagent-nodejs-monitor
    SPM_TOKEN: YOUR_SEMATEXT_NODEJS_MONITORING_TOKEN
  
  # collect all system logs for troubleshooting
  files: 
    - /var/log/**/*.log
  
# calculate PM2.5/PM10 ratio in percent 
outputFilter:
  - module: !!js/function >
      function (context, config, eventEmitter, data, callback)  {
        if (data.PM10 && data.PM10 > 0) {
            data.PM25ratio = (data['PM2.5']/data.PM10) * 100
        }
        callback(null, data)
      }

output: 
  # print log events in yaml format
  # when options.suppress=false
  stdout: yaml
  # Forward sensor logs to MQTT broker
  mqtt:
    module: output-mqtt
    url: mqtt://test.mosquitto.org
    topic: sensor-data
    debug: false
    # optional filter settings matching data field with regular expressions
    # we use the filter to exclude the system log files
    filter: 
      field: logSource
      match: Nova
  
  # Store log events & sensor data in Sematext Cloud or Elasticsearch
  # Create a log application in Sematext Cloud to obtain a token
  elasticsearch:
    module: elasticsearch
    url: https://logsene-receiver.sematext.com
    # url: https://logsene-receiver.eu.sematext.com
    # url: http://127.0.0.1:9200 
    # We route system logs and sensor data to different indices
    # each index has a list of regular expressions matching the logSource field
    indices:
      # sensor data index
      YOUR_SEMATEXT_LOGS_TOKEN: 
        - Nova
      # system logs index
      ANOTHER__SEMATEXT_LOGS_TOKEN:
        - var.log.*