Loggregator Emitter

About

This gem provides an API to emit messages to the loggregator agent from Ruby applications.

Create an emitter object with the loggregator router host and port, an origin, and a source name of the emitter.

Call emit() or emit_error() on this emitter with the application GUID and the message string.

A valid source name is any 3 character string. Some common component sources are:

API (Cloud Controller)
RTR (Go Router)
UAA
DEA
APP (Warden container)
LGR (Loggregator)

Setup

Add the loggregator_emitter gem to your gemfile.

gem "loggregator_emitter"

Sample Workflow

require "loggregator_emitter"

emitter = LoggregatorEmitter::Emitter.new("10.10.10.16:38452", "origin", API")

app_guid = "a8977cb6-3365-4be1-907e-0c878b3a4c6b" # The GUID(UUID) for the user's application

emitter.emit(app_guid, message) # Emits messages with a message type of OUT

emitter.emit(app_guid, message, {"key" => "value"}) # Emits messages with tags

emitter.emit_error(app_guid, error_message) # Emits messages with a message type of ERR

Regenerating Protobuf library

BEEFCAKE_NAMESPACE=Sonde protoc --beefcake_out lib/sonde -I ~/workspace/cf-release/src/loggregator/src/github.com/cloudfoundry/sonde-go/definitions/events ~/workspace/cf-release/src/loggregator/src/github.com/cloudfoundry/sonde-go/definitions/events/envelope.proto

Versioning

This gem is versioned using semantic versioning.