Class: NewRelic::IA::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/new_relic/ia/cli.rb

Constant Summary collapse

LOGFILE = 
"newrelic_ia.log"

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.log ⇒ Object

Returns the value of attribute log.



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# File 'lib/new_relic/ia/cli.rb', line 10

def log
  @log
end

Class Method Details

.execute(stdout, arguments = []) ⇒ Object

Run the command line args. Return nil if running or an exit status if not.



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# File 'lib/new_relic/ia/cli.rb', line 17

def execute(stdout, arguments=[])
  @aspects = []
  @log = Logger.new LOGFILE
  @log_level = Logger::INFO
  parser = OptionParser.new do |opts|
    opts.banner = <<-BANNER.gsub(/^ */,'')

      Monitor different aspects of your environment with New Relic RPM.  

      Usage: #{File.basename($0)} [ options ] aspect, aspect.. 

      aspect: one or more of 'iostat' or 'disk' (more to come)
    BANNER
    opts.separator ""
    opts.on("-a", "--all",
            "use all available aspects") { @aspects = %w[iostat disk] }
    opts.on("-v", "--verbose",
            "debug output") { @log_level = Logger::DEBUG }
    opts.on("-q", "--quiet",
            "quiet output") { @log_level = Logger::ERROR }
    opts.on("-e", "--environment=ENV",
            "use ENV section in newrelic.yml") { |e| @env = e }
    opts.on("--install",
            "create a default newrelic.yml") { |e| return self.install(stdout) }
    
    opts.on("-h", "--help",
            "Show this help message.") { stdout.puts "#{opts}\n"; return 0 }
    begin
      args = opts.parse! arguments
      unless args.empty?
        @aspects = args
      end
    rescue => e
      stdout.puts e
      stdout.puts opts
      return 1
    end
  end
  @aspects.delete_if do |aspect|
    unless self.instance_methods(false).include? aspect
      stdout.puts "Unknown aspect: #{aspect}"
      true
    end
  end
  if @aspects.empty?
    stdout.puts "No aspects specified."
    stdout.puts parser
    return 1
  end
  
  @log.level = @log_level 
  gem 'newrelic_rpm'
  require 'newrelic_rpm'
  NewRelic::Agent.manual_start :log => @log, :env => @env, :enabled => true
  cli = new
  @aspects.each do | aspect |
    cli.send aspect
  end
  return nil
end

.level=(l) ⇒ Object 



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# File 'lib/new_relic/ia/cli.rb', line 11

def level= l
  @log.level = l      
end

Instance Method Details

#disk ⇒ Object 



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# File 'lib/new_relic/ia/cli.rb', line 86

def disk
  self.class.log.info "Starting disk sampler..."
  require 'new_relic/ia/disk_sampler'
  NewRelic::Agent.instance.stats_engine.add_harvest_sampler NewRelic::IA::DiskSampler.new    
end

#iostat ⇒ Object

Aspect definitions



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# File 'lib/new_relic/ia/cli.rb', line 79

def iostat # :nodoc:
  self.class.log.info "Starting iostat monitor..."
  require 'new_relic/ia/iostat_reader'
  reader = NewRelic::IA::IostatReader.new
  Thread.new { reader.run }
end