**To view configuration options for an environment**

The following command retrieves descriptions of all available configuration options for an environment named ``my-env``::

  aws elasticbeanstalk describe-configuration-options --environment-name my-env --application-name my-app

Output (abbreviated)::

  {
      "Options": [
          {
              "Name": "JVMOptions",
              "UserDefined": false,
              "DefaultValue": "Xms=256m,Xmx=256m,XX:MaxPermSize=64m,JVM Options=",
              "ChangeSeverity": "RestartApplicationServer",
              "Namespace": "aws:cloudformation:template:parameter",
              "ValueType": "KeyValueList"
          },
          {
              "Name": "Interval",
              "UserDefined": false,
              "DefaultValue": "30",
              "ChangeSeverity": "NoInterruption",
              "Namespace": "aws:elb:healthcheck",
              "MaxValue": 300,
              "MinValue": 5,
              "ValueType": "Scalar"
          },
          ...
          {
              "Name": "LowerThreshold",
              "UserDefined": false,
              "DefaultValue": "2000000",
              "ChangeSeverity": "NoInterruption",
              "Namespace": "aws:autoscaling:trigger",
              "MinValue": 0,
              "ValueType": "Scalar"
          },
          {
              "Name": "ListenerEnabled",
              "UserDefined": false,
              "DefaultValue": "true",
              "ChangeSeverity": "Unknown",
              "Namespace": "aws:elb:listener",
              "ValueType": "Boolean"
          }
      ]
  }

Available configuration options vary per platform and configuration version. For more information about namespaces and supported options, see `Option Values`_ in the *AWS Elastic Beanstalk Developer Guide*.

.. _`Option Values`: http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/command-options.html