Class: LdsCfPlugin::Tunnel

Inherits:
CF::CLI
  • Object
show all
Defined in:
lib/lds-cf-plugin/tunnel.rb

Instance Method Summary collapse

Instance Method Details

#filter_debug_instances(app, instances) ⇒ Object 



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# File 'lib/lds-cf-plugin/tunnel.rb', line 55

def filter_debug_instances(app, instances)
  instances.keep_if do |instance|
    debugger = instance.debugger
    puts "#{c('Debugger information for instance', :error)} ##{c(instance.id, :number)} #{c('of', :error)} #{c(app.name, :name)} #{c('not available', :error)}" unless debugger
    debugger
  end
end

#precondition ⇒ Object 



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# File 'lib/lds-cf-plugin/tunnel.rb', line 15

def precondition
  check_target
end

#tunnel(app, instances, mode, &post_tunnel) ⇒ Object 



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# File 'lib/lds-cf-plugin/tunnel.rb', line 141

def tunnel(app, instances, mode, &post_tunnel)
  server = input[:tunnel_server] ? input[:tunnel_server] : URI(client.target).host
  server_port = input[:tunnel_server_port]

  host = input[:host]
  port = input[:port]

  line

  EventMachine.error_handler do |e|
    puts "Error: #{c(e, :error)}"
    log_error(e)
  end

  EventMachine.run do
    instances.each do |instance|
      TunnelClient::tunnel(client.token.auth_header, server, server_port, app, instance.id, mode, host, port, input[:use_tls])
      puts "Listening on #{c(host + ':' + port.to_s, :number)} for #{c(mode, :warning)} connections to forward to #{c(app.name, :name)} instance #{c('#' + instance.id, :instance)}."
      port = port + 1
    end
    yield instances if post_tunnel
  end
end

#tunnel_console(&post_tunnel) ⇒ Object 



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# File 'lib/lds-cf-plugin/tunnel.rb', line 77

def tunnel_console(&post_tunnel)
  app = input[:app]
  instances = get_instances(app)

  instances.keep_if do |instance|
    console = instance.console
    puts "#{c('Console information for instance', :error)} ##{c(instance.id, :number)} #{c('of', :error)} #{c(app.name, :name)} #{c(' not available', :error)}" unless console
    console
  end

  fail "Console information for #{c(app.name, :name)} not available." unless instances.size > 0

  tunnel(app, instances, "console", &post_tunnel)
end

#tunnel_debug ⇒ Object 



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# File 'lib/lds-cf-plugin/tunnel.rb', line 33

def tunnel_debug
  app = input[:app]
  instances = get_instances(app)

  filter_debug_instances(app, instances)

  unless instances.size > 0
    if ask("Restart application #{c(app.name, :name)} in debug mode?", :default => true)
      invoke :restart, :app => app, :debug_mode => ""

      instances = get_instances(app)
      filter_debug_instances(app, instances)
    else
      fail "Unable to debug #{c(app.name, :name)} because it is not running in debug mode."
    end
  end

  fail "Debugger information for #{c(app.name, :name)} still not available." unless instances.size > 0

  tunnel(app, instances, "debug")
end

#visualvm ⇒ Object 



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# File 'lib/lds-cf-plugin/tunnel.rb', line 107

def visualvm
  if !File::exist?(JMXMP_JAR_FILE)
    with_progress("Downloading JMXMP extension") do
      File.open(JMXMP_JAR_FILE, "wb") do |saved_file|
        open(JMXMP_JAR_URL, 'rb') do |read_file|
          saved_file.write(read_file.read)
        end
      end
    end
  end
  tunnel_console do |instances|
    visualvm = input[:jvisualvm] ? input[:jvisualvm] : "jvisualvm"
    EventMachine::defer do
      if system("\"#{visualvm}\" -cp:a \"#{JMXMP_JAR_FILE}\"") == nil
        fail("Unable to run '#{visualvm}'. Is it in your PATH?  If not you can specify where visual vm is with --jvisualvm (e.g. cf visualvm some-app --jvisualvm \"c:/java/bin/jvisualvm.exe\"")
      end
    end

    EventMachine::defer do
      # Give jvisualvm time to start up
      sleep(5)
      host = input[:host]
      port = input[:port]

      instances.each do |instance|
        jmxurl = "service:jmx:jmxmp://#{host}:#{port}"
        puts "Adding instance #{c('#' + instance.id, :instance)} to VisualVM (#{c(jmxurl, :instance)})"
        system("\"#{visualvm}\" --openjmx #{jmxurl}")
        port = port + 1
      end
    end
  end
end