lager_humio_backend

Erlang Lager backend for Humio log management system

Requirements

• Erlang 18 or newer
• Humio account and API token

Dependencies

Project depends on jiffy library for JSON parsing and uses default HTTP client (httpc).

Usage

$ rebar3 update compile

or

$ rebar get-deps && rebar compile

Setup

First you have to sign up with Humio service to get all required information for setting up logging backend.

Configuaration

Option	Required	Description
host	Yes	Hostname of the Humio server (e.g. go.humio.com)
token	Yes	Humio Ingestion API token (from Settings)
source	Yes	Humio log source for log grouping and filtering
level	Yes	Minimal log level to use (defaults to debug)
formatter	No	The module to use when formatting log messages (defaults to lager_default_formatter)
formatter_config	No	The format configuration string (defaults to time [ severity ] message)
metadata_filter	No	A list of excluded metadata keys
retry_interval	No	Intervarl for retry in case endpoint is not available (defaults to 60 seconds)
max_retries	No	Maximum number of retries (defaults to 10 retries)
httpc_opts	No	Set custom httpc:http_options() to change default HTTP client behaviour

Sample configuration:

{lager, [
  {handlers, [
    {lager_console_backend, debug},
    {lager_humio_backend,   [{host,  "cloud.humio.com"},
                             {token,  "YOUR_INGESTION_API_TOKEN"},
                             {source, "YOUR_APPLICATION"},
                             {level,  info}
    ]}
  ]}
}

Contributors

• Peter Mechlenborg - https://github.com/pmech