Add VPC to Lambda CDK

CDK provides lot of methods which can be used create new resources and then use that reference for creating/updating another resource.

But there are wide use cases where some of the resources are already created and we just need to import it for another resource.

One such example is VPC, we do not need to create multiple VPC's. Having a single VPC can also does the job pretty well. In this case we do not want to create VPC through CDK.

If you want to check how to import VPC, then click here (https://kuchbhilearning.blogspot.com/2022/10/httpskuchbhilearning.blogspot.comimport-existing-vpc-in-aws-cdk.html)

Now let's jump to assigning VPC to lambda.

  const hello = new lambdaNode.NodejsFunction(stack, `lambda-hello`, {
    entry: path.join(__dirname, 'src/hello.ts'), // Path to handler
    timeout: Duration.seconds(30),
    vpc,
    handler: 'handler', // file is "hello"; function is "handler"
    environment: {
      FUNCTION_NAME: 'hello',
    },
  });

We are using NodejsFunction for creating the lambda, which allows us to pass the VPC.

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