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GelfLogger Build Status

A logger backend that will generate Graylog Extended Log Format messages. The current version only supports UDP messages.

Configuration

In the config.exs, add gelf_logger as a backend like this:

config :logger,
  backends: [:console, {Logger.Backends.Gelf, :gelf_logger}]

In addition, you'll need to pass in some configuration items to the backend itself:

config :logger, :gelf_logger,
  host: "127.0.0.1",
  port: 12201,
  application: "myapp",
  compression: :gzip, # Defaults to :gzip, also accepts :zlib or :raw
  metadata: [:request_id, :function, :module, :file, :line],
  hostname: "hostname-override",
  tags: [
    list: "of",
    extra: "tags"
  ]

In addition to the backend configuration, you might want to check the Logger configuration for other options that might be important for your particular environment. In particular, modifying the :utc_log setting might be necessary depending on your server configuration. This backend supports metadata: :all.

Usage

Just use Logger as normal.

Improvements

  • Tests
  • TCP Support
  • Options for compression (none, zlib)
  • Send timestamp instead of relying on the Graylog server to set it
  • Find a better way of pulling the hostname

And probably many more. This is only out here because it might be useful to someone in its current state. Pull requests are always welcome.

Notes

Credit where credit is due, this would not exist without protofy/erl_graylog_sender.