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[ aws . lambda ]

get-policy

Description

Returns the resource-based IAM policy for a function, version, or alias.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

Synopsis

  get-policy
--function-name <value>
[--qualifier <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]

Options

--function-name (string)

The name of the Lambda function, version, or alias.

Name formats
  • Function name - my-function (name-only), my-function:v1 (with alias).
  • Function ARN - arn:aws:lambda:us-west-2:123456789012:function:my-function .
  • Partial ARN - 123456789012:function:my-function .

You can append a version number or alias to any of the formats. The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

--qualifier (string)

Specify a version or alias to get the policy for that resource.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.

Examples

To retrieve the resource-based IAM policy for a function, version, or alias

The following get-policy example displays policy information about the my-function Lambda function.

aws lambda get-policy \
    --function-name my-function

Output:

{
    "Policy": {
        "Version":"2012-10-17",
        "Id":"default",
        "Statement":
        [
            {
                "Sid":"iot-events",
                "Effect":"Allow",
                "Principal": {"Service":"iotevents.amazonaws.com"},
                "Action":"lambda:InvokeFunction",
                "Resource":"arn:aws:lambda:us-west-2:123456789012:function:my-function"
            }
        ]
    },
    "RevisionId": "93017fc9-59cb-41dc-901b-4845ce4bf668"
}

For more information, see Using Resource-based Policies for AWS Lambda in the AWS Lambda Developer Guide.

Output

Policy -> (string)

The resource-based policy.

RevisionId -> (string)

A unique identifier for the current revision of the policy.