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 10

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

Instance Attribute Details

#auth ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 59

def auth
  @auth || nil
end

#bind ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 75

def bind
  @bind || PrometheusExporter::DEFAULT_BIND_ADDRESS
end

#collector_class ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 79

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

#histogram ⇒ Object 



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

def histogram
  @histogram || false
end

#label ⇒ Object 



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

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

#port ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 71

def port
  @port || PrometheusExporter::DEFAULT_PORT
end

#prefix ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 67

def prefix
  @prefix || PrometheusExporter::DEFAULT_PREFIX
end

#realm ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 63

def realm
  @realm || PrometheusExporter::DEFAULT_REALM
end

#server_class ⇒ Object 



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

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

#timeout ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 87

def timeout
  @timeout || PrometheusExporter::DEFAULT_TIMEOUT
end

#type_collectors ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 83

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 56

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 56

def unicorn_pid_file
  @unicorn_pid_file
end

#verbose ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 91

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 100

def collector
  @_collector ||= collector_class.new
end

#start ⇒ Object 



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# File 'lib/prometheus_exporter/server/runner.rb', line 26

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