Class: PrometheusExporter::Server::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/prometheus_exporter/server/runner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Runner

Returns a new instance of Runner.



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# File 'lib/prometheus_exporter/server/runner.rb', line 13

def initialize(options = {})
  @timeout = nil
  @port = nil
  @bind = nil
  @collector_class = nil
  @type_collectors = nil
  @prefix = nil
  @auth = nil
  @realm = nil
  @histogram = nil

  options.each { |k, v| send("#{k}=", v) if self.class.method_defined?("#{k}=") }
end

Instance Attribute Details

#auth ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 84

def auth
  @auth || nil
end

#bind ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 100

def bind
  @bind || PrometheusExporter::DEFAULT_BIND_ADDRESS
end

#collector_class ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 104

def collector_class
  @collector_class || PrometheusExporter::Server::Collector
end

#histogram ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 133

def histogram
  @histogram || false
end

#label ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 129

def label
  @label ||= PrometheusExporter::DEFAULT_LABEL
end

#port ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 96

def port
  @port || PrometheusExporter::DEFAULT_PORT
end

#prefix ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 92

def prefix
  @prefix || PrometheusExporter::DEFAULT_PREFIX
end

#realm ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 88

def realm
  @realm || PrometheusExporter::DEFAULT_REALM
end

#server_class ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 121

def server_class
  @server_class || PrometheusExporter::Server::WebServer
end

#timeout ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 112

def timeout
  @timeout || PrometheusExporter::DEFAULT_TIMEOUT
end

#type_collectors ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 108

def type_collectors
  @type_collectors || []
end

#unicorn_listen_address ⇒ Object

Returns the value of attribute unicorn_listen_address.



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# File 'lib/prometheus_exporter/server/runner.rb', line 70

def unicorn_listen_address
  @unicorn_listen_address
end

#unicorn_pid_file ⇒ Object

Returns the value of attribute unicorn_pid_file.



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# File 'lib/prometheus_exporter/server/runner.rb', line 70

def unicorn_pid_file
  @unicorn_pid_file
end

#verbose ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 116

def verbose
  return @verbose if defined?(@verbose)
  false
end

Instance Method Details

#collector ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 125

def collector
  @_collector ||= collector_class.new
end

#start ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 27

def start
  PrometheusExporter::Metric::Base.default_prefix = prefix
  PrometheusExporter::Metric::Base.default_labels = label

  if histogram
    PrometheusExporter::Metric::Base.default_aggregation = PrometheusExporter::Metric::Histogram
  end

  register_type_collectors

  unless collector.is_a?(PrometheusExporter::Server::CollectorBase)
    raise WrongInheritance,
          "Collector class must be inherited from PrometheusExporter::Server::CollectorBase"
  end

  if unicorn_listen_address && unicorn_pid_file
    require_relative "../instrumentation"

    local_client = PrometheusExporter::LocalClient.new(collector: collector)
    PrometheusExporter::Instrumentation::Unicorn.start(
      pid_file: unicorn_pid_file,
      listener_address: unicorn_listen_address,
      client: local_client,
    )
  end

  @server =
    server_class.new(
      port: port,
      bind: bind,
      collector: collector,
      timeout: timeout,
      verbose: verbose,
      auth: auth,
      realm: realm,
    )
  @server.start
end

#stop ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 66

def stop
  @server.stop
end