Author: James Beswick

Managing Lambda layers across multiple accounts and Regions can be challenging at scale. By using a combination of AWS Config, EventBridge Scheduler, AWS Systems Manager (SSM) Automation, and CloudFormation StackSets, it is possible to streamline the process.

Using Lambda extensions can open up a wide range of options to extend the capability of serverless architectures. This blog shows a Lambda extension that creates a secure VPN tunnel using the WireGuard protocol and the Tailscale service to proxy events through to an EC2 instance inaccessible from the internet.

In this blog post, you learn how you can securely share files with authorized external parties and track their access using AWS serverless services. The sample application presented uses Step Functions to allow you to extend and customize the workflows to meet your use case requirements.

This blog post shows how to protect a Lambda Function URL, configured with IAM authentication, using a CloudFront distribution and Lambda@Edge. CloudFront helps protect from DDoS, and the function at the edge adds appropriate headers to the request to authenticate it for Lambda.

Reliable interservice communication is an important consideration in microservice design, especially when faced with dual writes. Combining the transactional outbox pattern with dual writes provides a robust way of improving message reliability.

Lambda response streaming can improve the TTFB for web pages. With the support of AWS Lambda Web Adapter, developers can more easily package web applications that support Lambda response streaming, enhancing the user experience and performance metrics of their web applications.

You can build and deploy functions using Python 3.11 using the AWS Management Console, AWS CLI, AWS SDK, AWS SAM, AWS CDK, or your choice of Infrastructure as Code (IaC). You can also use the Python 3.11 container base image if you prefer to build and deploy your functions using container images.

Lambda is deprecating the go1.x runtime in line with Amazon Linux 1 end-of-life, scheduled for December 31, 2023. Customers using Go with Lambda should migrate their functions to the provided.al2 runtime. Benefits include support for AWS Graviton2 processors with better price-performance, and a streamlined invoke path with faster performance.

When building event-driven applications, consider whether you can replace application code with serverless integration services to improve the resilience of your application and provide a clean separation between application logic and system dependencies.

This blog explains three key throttle limits applied on Lambda invokes: the concurrency limit, TPS limit and burst limit. It outlines the relationship between these limits and how each one protects the system and your workload from noisy neighbors. Equipped with this knowledge you can better interpret any 429 throttling exceptions you may receive while scaling your applications on Lambda.