Top Level Namespace

Defined Under Namespace

Modules: AsyncTaskOTELPatch, IdempotentMigration, PrometheusParser, RackHelpers, SSBase, StackServiceBase Classes: FiberConnectionPool, Time

Constant Summary collapse

QUIET = 
ENV.fetch('QUIET', 'false') == 'true'
PERFORMANCE = 
ENV.fetch('PERFORMANCE', 'false') == 'true'
CONSOLE_LOGGER =

ENV ||= ‘XTerm’ # JSON,Text,XTerm,Default

Class.new {
  def <<(...) = Console.logger.info(...)
  def info(...) = Console.logger.info(...)
  def debug(...) = Console.logger.debug(...)
  def debug1(...) = Console.logger.debug(...)
  def debug2(...) = Console.logger.debug(...)
  def debug3(...) = Console.logger.debug(...)
  def warn(...) = Console.logger.warn(...)
  def error(...) = Console.logger.error(...)
  def fatal(...) = Console.logger.fatal(...)
}.new
LOGGER = 
Class.new {
  def initialize = @context_list ||= {}

  def add_context(name)
    task = Async::Task.current?
    @context_list[task.__id__] = name
  end

  def find_context
    return '' unless Thread.current[:async_task]

    t_stack = [Async::Task.current]
    t_stack << t_stack.last.parent while t_stack.last.parent
    task = t_stack.find { @context_list[_1.__id__] }

    task ? " [#{@context_list[task.__id__]}] " : ''
  end

  def <<(...) = do_log(:info, ...)

  def info(...) = do_log(:info, ...)

  def debug(...) = do_log(:debug, ...)

  def debug1(...) = do_log(:debug1, ...)

  def debug2(...) = do_log(:debug2, ...)

  def debug3(...) = do_log(:debug3, ...)

  def warn(...) = do_log(:warn, ...)

  def error(...) = do_log(:error, ...)

  def fatal(...) = do_log(:fatal, ...)

  def do_log(name, *args)
    debug_level = name[/(\d+)/, 1].to_i
    unless debug_level > LOG_DEPTH
      if TRACE_METHODS
        call_stack = Thread.current[:call_stack] ||= {}
        call_stack_fiber = call_stack[Fiber.current.__id__] ||= []
        last = call_stack_fiber[-3] ? call_stack_fiber[-3].join('.').gsub('Class:', '').gsub(/[#<>]/, '') : ''
        last += find_context
        msg = "\e[33m#{last}:\e[0m \e[38;5;254m" + args.flatten.map(&:inspect).join(', ')
      else
        msg = args.flatten.map(&:inspect).join(', ')
      end
      _name = name.to_s.gsub(/\d/, '')
      _name = 'info' if _name == '<<'
      Console.logger.send _name.to_s.gsub(/\d/, ''), msg
    end
  end
}.new
LOGGER_GRAPE = 
Class.new {
  def method_missing(name, d)
    Console.logger.send  name, "REST_API: #{d[:method]} #{d[:path]} #{d[:params]} - #{d[:status]} host:#{d[:host]} time:#{d[:time]}"
  end
}.new
NATS_ENABLED = 
ENV['NATS_URL'].to_s != ''
NATS_URL =

|| ‘nats://nats_single:4222’

ENV['NATS_URL']
NATS_STACK_NAME = 
ENV['STACK_NAME'] || 'undefined_stack'
NATS_SERVICE_NAME = 
ENV['STACK_SERVICE_NAME'] || 'undefined_service'
OTEL_ENABLED = 
!ENV['OTEL_EXPORTER_OTLP_ENDPOINT'].to_s.empty?
STACK_NAME = 
ENV['STACK_NAME'] || 'undefined_stack'
SERVICE_NAME = 
ENV['STACK_SERVICE_NAME'] || 'undefined_service'

Instance Method Summary collapse

Instance Method Details

#exec_i(cmd, input_string = nil, &block) ⇒ Object 



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# File 'lib/stack-service-base/command_line.rb', line 5

def exec_i(cmd, input_string = nil, &block)
  puts "exec_i(inputs.size #{input_string&.size}): #{cmd}"
  Open3.popen3(cmd) do |i, o, e, wait_thr|
    std_out, std_err = '', ''
    i.puts input_string unless input_string.nil?
    i.close
    while line = o.gets; puts "o: #{line}"; std_out += "#{line}\n" end
    while line = e.gets; puts "o: #{line}"; std_err += "#{line}\n" end
    return_value = wait_thr.value
    puts "Error level was: #{return_value.exitstatus}" unless return_value.success?

    if block_given?
      block.call return_value, std_out, std_err
    else
      exit return_value.exitstatus unless return_value.success?
    end
  end
end

#exec_o_lines(cmd) ⇒ Object 



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# File 'lib/stack-service-base/command_line.rb', line 24

def exec_o_lines(cmd,&)
  IO.popen(cmd, 'r') do |f|
    f.each_line do |line|
      yield line
    end
  end
end

#flatten_hash(hash, path = [], result = {}) ⇒ Object 



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# File 'lib/stack-service-base/open_telemetry.rb', line 43

def flatten_hash(hash, path = [], result = {})
  hash.each do |k, v|
    path += [k]
    result[path.join('.')] = v.to_s if v.is_a?(String) || v.is_a?(Numeric)
    flatten_hash(v, path, result) if v.is_a?(Hash) || v.is_a?(Array)
    path.pop
  end
  result
end

#initialize_nats_service ⇒ Object 



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# File 'lib/stack-service-base/nats_service.rb', line 15

def initialize_nats_service
  LOGGER.info "Initializing NATS service"

  $nats_client = NATS.connect NATS_URL

  service = $nats_client.services.add(
    name: "#{NATS_SERVICE_NAME}_#{NATS_STACK_NAME}",
    version: "1.0.0",
    description: "service-base auto service"
  )

  service.on_stop do
    puts "Service stopped at #{Time.now}"
  end

  service.endpoints.add("min") do |message|
    min = JSON.parse(message.data).min
    message.respond(min.to_json)
  end

  service.endpoints.add("max") do |message|
    max = JSON.parse(message.data).max
    message.respond(max.to_json)
  end

  min = $nats_client.request("min", [5, 100, -7, 34].to_json, timeout: 10)
  max = $nats_client.request("max", [5, 100, -7, 34].to_json, timeout: 10)

  puts "min = #{min.data}, max = #{max.data}"

  # service.stop

end

#otel_initialize ⇒ Object 



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# File 'lib/stack-service-base/open_telemetry.rb', line 57

def otel_initialize
  $stdout.puts "otl_configure: OTEL_ENABLED: #{OTEL_ENABLED}"
  return unless OTEL_ENABLED

  OpenTelemetry::SDK.configure do |c|
    OpenTelemetry::Instrumentation::Rack
    # OpenTelemetry::Instrumentation::Rack::Middlewares::TracerMiddleware
    # Rack::Builder
    OpenTelemetry::Instrumentation::Sinatra
    c.use_all({
      'OpenTelemetry::Instrumentation::Sinatra' => { install_rack: false }, # installed by rack-helpers.rb#176
      'OpenTelemetry::Instrumentation::Rack' => {
        use_rack_events: false, # TODO: doesnt work with Websoket requests
        # /home/user/.rbenv/versions/3.3.1/lib/ruby/gems/3.3.0/gems/opentelemetry-instrumentation-rack-0.26.0/lib/opentelemetry/instrumentation/rack/instrumentation.rb#43
        url_quantization: ->(path, env) { "HTTP #{env['REQUEST_METHOD']} #{path}" },
        untraced_requests: ->(env) { env['HTTP_UPGRADE'] == 'websocket' }
      }
    })
    # c.service_name = SERVICE_NAME
  end

  at_exit do
    OpenTelemetry.tracer_provider.force_flush
    OpenTelemetry.tracer_provider.shutdown
  end

  $tracer_ = OpenTelemetry.tracer_provider.tracer(SERVICE_NAME)

  otl_span "#{SERVICE_NAME} start", {
    'stack.name': ENV['STACK_NAME'],
    'stack.service.name': ENV['STACK_SERVICE_NAME'],
    'org.opencontainers.image.title': ENV['ORG_OPENCONTAINERS_IMAGE_TITLE'],
    'org.opencontainers.image.url':  ENV['ORG_OPENCONTAINERS_IMAGE_URL'],
    'org.opencontainers.image.source': ENV['ORG_OPENCONTAINERS_IMAGE_SOURCE'],
    'org.opencontainers.image.created': ENV['ORG_OPENCONTAINERS_IMAGE_CREATED'],
    'com.gitlab.ci.commt.timestamp': ENV['COM_GITLAB_CI_COMMIT_TIMESTAMP'],
    'com.gitlab.ci.tag': ENV['COM_GITLAB_CI_TAG'],
    RACK_ENV: ENV['RACK_ENV'],
    NODE_ENV: ENV['NODE_ENV'],
    SERVER_ENV: ENV['SERVER_ENV'],
  } do |span|

    span.add_event("not-working in kibana APM", attributes:{
      event: 'Success',
      message: 'Get data from elastic Success'
    }.transform_keys(&:to_s) )
    # span.status = OpenTelemetry::Trace::Status.error("error message here!")
  end
end

#otl_current_span {|OpenTelemetry::Trace.current_span| ... } ⇒ Object

Yields:

  • (OpenTelemetry::Trace.current_span) 


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# File 'lib/stack-service-base/open_telemetry.rb', line 136

def otl_current_span
  return unless OTEL_ENABLED
  yield OpenTelemetry::Trace.current_span
end

#otl_def(name) ⇒ Object 



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# File 'lib/stack-service-base/open_telemetry.rb', line 156

def otl_def(name)
  original_method = self.respond_to?(:instance_method) ? instance_method(name) : method(name)
  self.respond_to?(:remove_method) ? remove_method(name) : Object.send(:remove_method, name)
  original_method = original_method.respond_to?(:unbind) ? original_method.unbind : original_method

  define_method(name) do |*args, **kwargs, &block|
    klass = self.respond_to?(:class_name) ? self.class_name : (self.respond_to?(:name) ? self.name : 'main')
    otl_span("method: #{klass}.#{name}", {args: args.to_s, kwargs: kwargs.to_s}) do |span|
      original_method.bind(self).call(*args, **kwargs, &block)
    end
  end
end

#otl_span(name, attributes = {}) ⇒ Object 



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# File 'lib/stack-service-base/open_telemetry.rb', line 126

def otl_span(name, attributes = {})
  # span_ = OpenTelemetry::Trace.current_span
  return yield(nil) unless OTEL_ENABLED

  return yield(nil) unless $tracer_
  $tracer_&.in_span(name, attributes: flatten_hash(attributes.transform_keys(&:to_s).transform_values{_1 || 'n/a'}) ) do |span|
    yield span
  end
end

#otl_traceparent_id ⇒ Object

OpenTelemetry::Trace.current_span.tap do |span|

span.record_exception(e)
span.status = OpenTelemetry::Trace::Status.error("Unhandled exception of type: #{e.class}")

end



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# File 'lib/stack-service-base/open_telemetry.rb', line 146

def otl_traceparent_id
    return nil unless OTEL_ENABLED

    span_context = OpenTelemetry::Trace.current_span.context
    trace_id = span_context.trace_id.unpack1('H*')
    span_id = span_context.span_id.unpack1('H*')
    trace_flags = format('%02x', span_context.trace_flags.instance_eval{ @flags }) # Two-digit hex for trace flags (e.g., sampled)
    "00-#{trace_id}-#{span_id}-#{trace_flags}"
end