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Output Plugin: Files

Writes Logagent output into files. The file name could be dynamically generated using extracted field values in the template for the file name. Following file formats are supported: - ldjson - Line delimited JSON - pretty - Pretty JSON - yaml - YAML format - template - Any format using format templates in the template property

File rotation is supported via following properties: - size - Maximum file size e.g. 10M (MegaBytes), 1G (GigaBytes), 300k (KiloBytes), 10000B (Bytes) - maxFiles - Maximum number of files to keep on disk - interval - Interval for file rotation e.g. 5s (seconds), 10m (minutes), '1d' (days), 1h (hours)
- compress - Boolean flag to enable compression of rotated files (true/false). Please refer to rotating-file-stream for details on the file rotation options.

This plugin is particularly useful to export data from supported data sources like MySQL, Postgres, MS-SQL, Elasticsearch, Logfiles or Kafka topics to files.

Configuration

input: 
  stdin: true 

# example parser, extracting country name to route file output to files named {country}.txt
parser:
  patternFiles: []
  patterns:
    - sourceName: !!js/regexp /.*/
      match:
        - type: countryInfo
          regex: !!js/regexp /(.+?)\s(.+?)\s(.+?)/i
          fields: 
            - country:string
            - anotherField:string
            - andAnotherField:string

output:
  files:
    module: output-files
    debug: false
    fileName: '/tmp/{country}.txt'
    # available format values: 'ldjson' (default), 'yaml', 'pretty' (pretty JSON), 'template'
    format: template
    # define a template for comma separated format
    template: '{country},{anotherField},{andAnotherField}'
    # matches context.sourceName == data.logSource
    sourceName: .*
    # matches data._type field 
    typeName: countryInfo
    # properties for https://www.npmjs.com/search?q=rotating-file-stream
    size: 10M
    maxFiles: 2
    interval: 1d
    compress: true

Start logagent

logagent --config output-file.yaml