AWS Lambda Access Denied Exception

Help
1

Hi there,
I am using the AWS Lambda block and I am getting an Access Denied Exception.
I have added a set of policies to the AWS user but they don’t seem to allow the execution.
I have googled online and I couldn’t find a simple config policy that I can just use.
Anybody has any experience to share?
Cheers.

2

Here is an example of a policy that would allow execution of a specific function:

{
	"Version": "2012-10-17",
	"Statement": [
		{
			"Sid": "VisualEditor0",
			"Effect": "Allow",
			"Action": "lambda:InvokeFunction",
			"Resource": "arn:aws:lambda:us-east-1:071006855025:function:dylansFunction"
		}
	]
}

Where …

  • us-east-1 should be replaced with your AWS region
  • 071006855025 should be replaced with your account ID
  • dylansFunction should be replaced with your function name

There are other policies you could attach that are more open, though following the principle of least permissions, I would recommend limiting the policy’s scope as much as possible.

For example, this policy would allow you to invoke any of your Lambda functions across any of your AWS regions:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "lambda:InvokeFunction"
            ],
            "Resource": [
                "*"
            ]
        }
    ]
}