Maintenance: Add E2E tests for Lambda Managed Instances

[svozza]

Summary

Now that CloudFormation supports provisioning Lambda Managed Instances, we should add e2e tests fot his configuration. Specifically, the logger, metrics, and batch utilities have specific code paths that are only invoked in LMI environments and we should test these.

Why is this needed?

We support this platform but we have no automated e2e tests to confirm it works.

Which area does this relate to?

No response

Solution

Update our CDK test to create LMI environments:

import * as ec2 from 'aws-cdk-lib/aws-ec2';

const vpc = new ec2.Vpc(this, 'MyVpc');
const securityGroup = new ec2.SecurityGroup(this, 'SecurityGroup', { vpc });

const capacityProvider = new lambda.CapacityProvider(this, 'MyCapacityProvider', {
  subnets: vpc.privateSubnets,
  securityGroups: [securityGroup],
  scalingOptions: lambda.ScalingOptions.manual([
    lambda.TargetTrackingScalingPolicy.cpuUtilization(70),
  ]),
});

const fn = new lambda.Function(this, 'MyFunction', {
  // Runtime must be equal to or newer than NODEJS_LATEST
  runtime: lambda.Runtime.NODEJS_LATEST,
  handler: 'index.handler',
  code: lambda.Code.fromAsset(path.join(__dirname, 'lambda-handler')),
});

// Associate the function with the capacity provider
capacityProvider.addFunction(fn, {
  perExecutionEnvironmentMaxConcurrency: 10,
  executionEnvironmentMemoryGiBPerVCpu: 4,
});

If possible we should try to run some of the concurrency tests in this particular:

https://github.com/aws-powertools/powertools-lambda-typescript/tree/main/packages/logger/tests/unit/concurrency
https://github.com/aws-powertools/powertools-lambda-typescript/tree/main/packages/metrics/tests/unit/concurrency
https://github.com/aws-powertools/powertools-lambda-typescript/tree/main/packages/batch/tests/unit/concurrency

Acknowledgment

• This request meets Powertools for AWS Lambda (TypeScript) Tenets
• Should this be considered in other Powertools for AWS Lambda languages? i.e. Python, Java, and .NET

Future readers

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