What is trusted entities in resulting role definition of Lambda?

Question

Here I have a role in JSON which I created for Lambda function,

{

  "roleName": "somestack-HelloWorldFunctionRole-AAAAAAAA",

  "policies": [

    {...}, # AWSLambdaExecute

    {...}, # AWSLambdaSQSQueueExecutionRole

    {....} # AWSLambdaBasicExecutionRole

  ],

  "trustedEntities": [

    "lambda.amazonaws.com"

  ]

}

So my question is what are these "trustedEntities" in JSON?

Answer 1

Here "trustedEntities" are a set of entities that assume this role. Like if you create a function using SAM then the trust relationship between the role created by SAM and lambda is automatically created, which means that your lambda function can assume this role.

To assign this role to EC2, you can do as given below:

"trustedEntities": [

    "lambda.amazonaws.com",

    "ec2.amazonaws.com"

  ]

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