Class: Fum::Commands::Tail

Inherits:
Fum::Command show all
Defined in:
lib/fum/commands/tail.rb

Instance Method Summary collapse

Methods inherited from Fum::Command

#initialize, #stage

Methods included from Util

#die

Constructor Details

This class inherits a constructor from Fum::Command

Instance Method Details

#execute(options) ⇒ Object 



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# File 'lib/fum/commands/tail.rb', line 14

def execute(options)
  beanstalk = Fog::AWS[:beanstalk]

  die "Directory #{options[:directory]} does not exist" if options[:directory] && !File.directory?(options[:directory])

  if options[:environment].nil?
    # Use the currently active environment

  end
  request_opts = {
      'ApplicationName' => options[:application],
      'EnvironmentName' => options[:environment],
      'InfoType' => 'tail'
  }

  if options[:environment] && options[:environment].match(/e-[a-zA-Z0-9]{10}/)
    request_opts['EnvironmentId'] = options[:environment]
  else
    request_opts['EnvironmentName'] = options[:environment]
  end

  puts "Requesting logs for environment #{options[:environment]}" if options[:verbose]
  beanstalk.request_environment_info(request_opts)

  begin
    files = Timeout::timeout(360) do
      # Sleep a few seconds
      sleep(5)
      begin
        puts "Retrieving logs for environment #{options[:environment]}" if options[:verbose]
        info = beanstalk.retrieve_environment_info(request_opts).body["RetrieveEnvironmentInfoResult"]["EnvironmentInfo"]
        puts "Logs not yet available, will try again in 10 seconds." if options[:verbose] && info.length == 0
      end while info.length == 0 && sleep(10)

      info = info.sort_by { |i| i['SampleTimestamp'] }.reverse
      instance_ids = []
      info = info.select { |i|
        seen = instance_ids.include?(i['Ec2InstanceId'])
        instance_ids << i['Ec2InstanceId']
        !seen
      }
    end
  rescue Timeout::Error
    die "Operation timed out, could not retrieve environment info."
  end


  require 'excon'
  files.each { |file|
    contents = Excon.get(file['Message']).body
    if options[:directory]
      filename = "#{file['Ec2InstanceId']}-#{file['SampleTimestamp'].strftime('%Y%m%dT%H%M')}.txt"
      file = File.join(File.expand_path(options[:directory]),filename)
      if File.exists?(file)
        puts "File already exists #{file}, will not overwrite."
        next
      end
      File.open(file, 'w') { |f|f.write(contents) }
      puts "Created file #{file}"
    else
      puts "##########################################"
      puts "# InstanceID #{file['Ec2InstanceId']}"
      puts "# Timestamp #{file['SampleTimestamp']}"
      puts "##########################################"
      puts contents
    end

  }

end

#parse_options ⇒ Object 



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# File 'lib/fum/commands/tail.rb', line 5

def parse_options
  Trollop::options do
    banner "usage: tail [options], where options are:"
    opt :application, "Show events only for the specified application", :type => :string
    opt :environment, "Show events associated with the specified environment name or id", :type => :string
    opt :directory, "Output log files to the directory specified.", :type => :string
  end
end