{
  "script" : "examples/echo.js",
  "error_file" : "errEcho.log",
  "out_file" : "outEcho.log",
  "name" : "ok",
  "pid_file" : "echo.pid",
  "max" : "1",
  "exec_mode" : "cluster_mode",
  "port" : "9001",
  "env_variable" : "TOTO"
}