Stackdriver Instrumentation Configuration

Stackdriver instrumentation libraries are fully integrated with Rails configuration interface. You can provide all the configuration parameters in your config/environments/*.rb files:

Rails.application.configure do |config|
  # Shared project_id and keyfile
  config.google_cloud.project_id = "my-project"
  config.google_cloud.keyfile = "/path/to/key.json"

  # Library specific configurations
  config.google_cloud.error_reporting.project_id = "error-reporting-project"
  config.google_cloud.logging.log_name = "my-app-logname"
  config.google_cloud.trace.capture_stack = true
end

Other Rack-based applications can also configure all the Stackdriver instrumentation libraries through a similar configuration interface in Ruby:

Google::Cloud.configure do |config|
  # Shared project_id and keyfile
  config.project_id = "my-project"
  config.keyfile = "/path/to/key.json"

  # Library specific configurations
  config.error_reporting.project_id = "error-reporting-project"
  config.logging.log_name = "my-app-log"
  config.trace.capture_stack = true
end

Individual libraries can be configured separately:

# Error Reporting specific configurations
Google::Cloud::ErrorReporting.configure do |config|
  config.project_id = "error-reporting-project"
  config.service_name = "my-service"
end

# Logging specific configurations
Google::Cloud::Logging.configure do |config|
  config.project_id = "error-reporting-project"
  config.log_name = "my-app-log"
  config.labels = {
    "my-static-label" => "static-label-value",
    "my-dynamic-label" => ->(rack_env) { rack_env["HTTP_X_MY_HEADER"] }
  }
end

# Trace specific configurations
Google::Cloud::Trace.configure do |config|
  config.project_id = "error-reporting-project"
  config.capture_stack = true
end

Configuration Options

Shared

• project_id: [String] Shared Google Cloud Platform Project identifier. Self discovered on GCP.
• credentials: [String] Path to shared service account JSON keyfile. Self discovered on GCP.
• use_error_reporting: [Boolean] Explicitly enable or disable Error Reporting features. Default: Rails.env.production?
• use_logging: [Boolean] Explicitly enable or disable Logging middleware. Default: Rails.env.production?
• use_trace: [Boolean] Explicitly enable or disable Trace features. Default: Rails.env.production?

Error Reporting

• error_reporting.project_id: [String] Google Cloud Platform Project identifier just for Error Reporting. Self discovered on GCP.
• error_reporting.credentials: [String] Path to service account JSON keyfile. Self discovered on GCP.
• error_reporting.service_name: [String] Identifier to running service. Self discovered on GCP. Default: "ruby"
• error_reporting.service_version: [String] Version identifier to running service. Self discovered on GCP.
• error_reporting.ignore_classes: [Array] An Array of Exception classes to ignore. Default: []

Logging

• logging.project_id: [String] Google Cloud Platform Project identifier just for Logging. Self discovered on GCP.
• logging.credentials: [String] Path to service account JSON keyfile. Self discovered on GCP.
• logging.log_name: [String] Name of the application log file. Default: "ruby_app_log"
• logging.log_name_map: [Hash] Map specific request routes to other log. Default: { "/_ah/health" => "ruby_health_check_log" }
• logging.monitored_resource.type: [String] Resource type name. See full list. Self discovered on GCP.
• logging.monitored_resource.labels: [Hash] Resource labels. See full list. Self discovered on GCP.
• logging.labels: [Hash] User defined labels. A Hash of label names to string label values or callables/Proc which are functions of the Rack environment.

Trace

• trace.project_id: [String] Google Cloud Platform Project identifier just for Trace. Self discovered on GCP.
• trace.credentials: [String] Path to service account JSON keyfile. Self discovered on GCP.
• trace.capture_stack: [Boolean] Whether to capture stack traces for each span. Default: false
• trace.sampler: [Proc] A sampler Proc makes the decision whether to record a trace for each request. Default: Google::Cloud::Trace::TimeSampler
• trace.span_id_generator: [Proc] A generator Proc that generates the name String for new TraceRecord. Default: random numbers
• trace.notifications: [Array] An array of ActiveSupport notification types to include in traces. Rails-only option. Default: Google::Cloud::Trace::Railtie::DEFAULT_NOTIFICATIONS
• trace.max_data_length: [Integer] The maximum length of span properties recorded with ActiveSupport notification events. Rails-only option. Default: Google::Cloud::Trace::Notifications::DEFAULT_MAX_DATA_LENGTH