Cannot add VPC to my lambda function

Question

Hi,

I've run into a problem where I can't add a VPC to my Lambda function. I followed the steps outlined in this Stack Overflow post (https://stackoverflow.com/questions/41177965/the-provided-execution-role-does-not-have-permissions-to-call-describenetworkint), but I'm still getting the error message "The provided execution role does not have permissions to call CreateNetworkInterface on EC2". Do you have any suggestions on how to resolve this issue?

PS: I've attached three permission to my IAM user: AmazonEC2ContainerRegistryFullAccess, AWSLambda_FullAccess, AWSLambdaVPCAccessExecutionRole.

Thanks!

Accepted Answer

Hello.

Please set the following IAM policy for the IAM role used by Lambda, not for the IAM user.  
https://docs.aws.amazon.com/lambda/latest/dg/lambda-intro-execution-role.html#permissions-executionrole-features  
```
AWSLambdaVPCAccessExecutionRole
```
> AWSLambdaVPCAccessExecutionRole grants permissions to manage ENIs within an Amazon VPC and write to CloudWatch Logs.

You can check the IAM role used by Lambda from the Lambda screen.  
![lambda](/media/postImages/original/IMA_ApNBC5SzCWljhd8u6yTw)

Cannot add VPC to my lambda function

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