Hands-On Serverless Computing

Network configuration

By default, AWS Lambda functions won't be able to access resources that are inside the VPC. If you want to access resources inside a VPC, then you need to select the VPC that you need to connect to from this section. Once you select the VPC, you will have to select the subnets where you want your Lambda function to execute. You also need to select the appropriate security groups so that inbound and outbound rules are set on the Lambda to access resources. You can learn more about VPC at https://aws.amazon.com/vpc/ and you can learn more about VPC support for AWS Lambda at https://docs.aws.amazon.com/lambda/latest/dg/vpc.html.

I have configured the Lambda to be able to access VPC resources using the following configuration. ...