OpenTelemetry Ruby Installation

bundle add opentelemetry-sdk opentelemetry-exporter-otlp opentelemetry-instrumentation-all

require "socket"
require "opentelemetry/sdk"
require "opentelemetry/instrumentation/all"
require "opentelemetry-exporter-otlp"

# Replace these values with your AppSignal application name, environment
# and push API key. These are used by the resource attributes configuration below.
name = "My app"
push_api_key = "0000-0000-0000-0000"

environment = defined?(Rails) ? Rails.env.to_s : "development"

# Set the name of the service that is being monitored. A common choice is the
# name of the framework used. This is used to group traces and metrics in AppSignal.
service_name = "My service name"

# Replace `http://localhost:8099` with the address of your AppSignal collector
# if it's running on another host.
endpoint = "http://localhost:8099/v1/traces"

revision = `git rev-parse --short HEAD`.strip

OpenTelemetry::SDK.configure do |c|
  c.resource = OpenTelemetry::SDK::Resources::Resource.create(
    "appsignal.config.name" => name,
    "appsignal.config.environment" => environment,
    "appsignal.config.push_api_key" => push_api_key,
    "appsignal.config.revision" => revision,
    "appsignal.config.language_integration" => "ruby",
    "appsignal.config.app_path" => Dir.pwd,
    "host.name" => Socket.gethostname,
  )
  c.service_name = service_name

  c.add_span_processor(
    OpenTelemetry::SDK::Trace::Export::BatchSpanProcessor.new(
      OpenTelemetry::Exporter::OTLP::Exporter.new(
        :endpoint => endpoint,
        :compression => "none"
      )
    )
  )

  c.use_all
end