• Source: AWS Lambda

AWS Lambda is an event-driven, serverless Function as a Service (FaaS) provided by Amazon as a part of Amazon Web Services. It is designed to enable developers to run code without provisioning or managing servers. It executes code in response to events and automatically manages the computing resources required by that code. It was introduced on November 13, 2014.




Specification


Each AWS Lambda instance is a container created from Amazon Linux AMIs (a Linux distribution related to RHEL) and a configurable execution time. Node.js, Python, Java, Go, Ruby, and C# (through .NET) are all officially supported as of 2018. In late 2018, custom runtime support was added to AWS Lambda.
In 2019, at the AWS annual cloud computing conference (AWS re:Invent), the AWS Lambda team announced "Provisioned Concurrency", a feature that "keeps functions initialized and hyper-ready to respond in double-digit milliseconds." The Lambda team described Provisioned Concurrency as "ideal for implementing interactive services, such as web and mobile backends, latency-sensitive microservices, or synchronous APIs."
The Lambda Function URL gives Lambda a unique and permanent URL which can be accessed by authenticated and non-authenticated users alike.
AWS Lambda Layers allow developers to easily manage and share common components across multiple Lambda functions. It's designed to promote code reusability and simplify the deployment of libraries, custom runtimes, and other dependencies that Lambda functions might need. Lambda Layers can be particularly useful in microservices architectures, where multiple functions might share the same dependencies. By using layers, one can ensure that all functions are using the same version of a library, making the application more consistent and easier to manage.




Best practices


Following DevSecOps practices can help end-users to use and secure Lambda-based applications more effectively. In Lambda-based applications, the line between the infrastructure and business logic is blurred and the apps are usually spread across various services. According to Yan Cui, to get the most value from testing efforts, Lambda-based applications should be tested mainly for their integrations, and unit tests should be used only if there is a complex business logic. Also, to make debugging and implementation of Lambda-based easier, developers should use orchestration within the bounded context of a microservice, and should use choreography between the bounded-contexts.




Helper Tools


Lambda Live Debugger is an open-source tools that helps you debug your AWS Lambda functions from your computer, while they are deployed in the cloud. It supports AWS CDK v2, Serverless Framework v3, AWS Serverless Application Model (SAM) and Terraform.




Security


In April 2022, researchers found cryptomining malware targeting AWS Lambda named "Denonia".




See also


Event-driven architecture
Serverless Framework
Serverless computing
Function as a service
Lambda function, the concept of an anonymous computing function, not bound to an identity, which gives Amazon Lambda its name
Oracle Cloud Platform
Google Cloud Functions
Azure Function




References






External links


Official website

Kata Kunci Pencarian:

• Amazon Web Services
• Netlify
• Google Cloud Platform
• AWS Lambda
• Timeline of Amazon Web Services
• Amazon Web Services
• AWS Graviton
• Lambda architecture
• AWS Cloud Development Kit
• Function as a service
• AWS CloudFormation
• Blue–green deployment
• Serverless computing