Module: VMC::Cli::ConsoleHelper

Included in:
VMC::Cli::Command::Apps
Defined in:
lib/cli/console_helper.rb

Instance Method Summary collapse

Instance Method Details

#close_console ⇒ Object 



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# File 'lib/cli/console_helper.rb', line 99

def close_console
  @telnet_client.close
end

#console_connection_info(appname) ⇒ Object 



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# File 'lib/cli/console_helper.rb', line 7

def console_connection_info(appname)
  app = client.app_info(appname)
  fw = VMC::Cli::Framework.lookup_by_framework(app[:staging][:model])
  if !fw.console
    err "'#{appname}' is a #{fw.name} application.  " +
      "Console access is not supported for #{fw.name} applications."
  end
  instances_info_envelope = client.app_instances(appname)
  instances_info_envelope = {} if instances_info_envelope.is_a?(Array)

  instances_info = instances_info_envelope[:instances] || []
  err "No running instances for [#{appname}]" if instances_info.empty?

  entry = instances_info[0]
  if !entry[:console_port]
    begin
      client.app_files(appname, '/app/cf-rails-console')
      err "Console port not provided for [#{appname}].  Try restarting the app."
    rescue VMC::Client::TargetError, VMC::Client::NotFound
      err "Console access not supported for [#{appname}]. " +
        "Please redeploy your app to enable support."
    end
  end
  conn_info = {'hostname' => entry[:console_ip], 'port' => entry[:console_port]}
end

#console_credentials(appname) ⇒ Object 



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# File 'lib/cli/console_helper.rb', line 94

def console_credentials(appname)
  content = client.app_files(appname, '/app/cf-rails-console/.consoleaccess', '0')
  YAML.load(content)
end

#console_login(auth_info, port) ⇒ Object 



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# File 'lib/cli/console_helper.rb', line 54

def (auth_info, port)
  if !auth_info["username"] || !auth_info["password"]
    err "Unable to verify console credentials."
  end
  @telnet_client = telnet_client(port)
  prompt = nil
  err_msg = "Login attempt timed out."
  3.times do
    begin
      results = @telnet_client.("Name"=>auth_info["username"],
        "Password"=>auth_info["password"])
      lines = results.sub("Login: Password: ", "").split("\n")
      last_line = lines.pop
      if last_line =~ /[$%#>] \z/n
        prompt = last_line
      elsif last_line =~ /Login failed/
        err_msg = last_line
      end
      break
    rescue TimeoutError
      sleep 1
    rescue EOFError
      #This may happen if we login right after app starts
      close_console
      sleep 5
      @telnet_client = telnet_client(port)
    end
  end
  unless prompt
    close_console
    err err_msg
  end
  prompt
end

#console_tab_completion_data(cmd) ⇒ Object 



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# File 'lib/cli/console_helper.rb', line 103

def console_tab_completion_data(cmd)
  begin
    results = @telnet_client.cmd("String"=> cmd + "\t", "Match"=>/\S*\n$/, "Timeout"=>10)
    results.chomp.split(",")
  rescue TimeoutError
    [] #Just return empty results if timeout occurred on tab completion
  end
end

#send_console_command(cmd) ⇒ Object 



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# File 'lib/cli/console_helper.rb', line 89

def send_console_command(cmd)
  results = @telnet_client.cmd(cmd)
  results.split("\n")
end

#start_local_console(port, appname) ⇒ Object 



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# File 'lib/cli/console_helper.rb', line 33

def start_local_console(port, appname)
  auth_info = console_credentials(appname)
  banner = "Connecting to '#{appname}' console: "
  display banner, false
  t = Thread.new do
    count = 0
    while count < 90 do
      display '.', false
      sleep 1
      count += 1
    end
  end
  prompt = (auth_info, port)
  Thread.kill(t)
  clear(80)
  display "#{banner}#{'OK'.green}"
  display "\n"
  initialize_readline
  run_console prompt
end