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Serverless

What is a microVM?

A microVM is a lightweight virtual machine. Any function or container workload can run inside of one. It is ideal for running multiple high-performance and secure workloads concurrently on a single machine because it combines the security and isolation of traditional VMs with the resource efficiency of containers. In this blog post, we dive into the world of microVMs, specifically Firecracker microVMs.

What is gRPC?

gRPC is an open source remote procedure call (RPC) framework that enables client and server applications to communicate with each other remotely and transparently. In this blog post, we are going to discuss gRPC. First, we’ll talk about RPCs and why they are important. Then we’ll explain how gRPC works, taking a closer look at protocol buffers and the architecture of gRPC.

eBPF: The future of the service mesh and network innovation

The conversations around eBPF and how this technology will shape the future of the service mesh caused a huge buzz in the last year — yes, bee pun intended. eBPF lets you run sandboxed programs in an operating system kernel. Imagining how eBPF could improve the service mesh brings exciting possibilities, but it also raises security and operational concerns given the current state and limitations of eBPF.

From Server to Serverless Clients A Debugger's Point of View

The transition from a server to a serverless architecture can be tricky for any application, particularly if your application needs to instrument other people’s code. In this talk, I will go over some of the different challenges and hurdles we faced when adding support for serverless applications in our debugger. We will also discuss several struggles that affect serverless applications, and dive into what needs to be considered when making sure that a new tool’s SDK has minimal impact on the performance of your application.

Introducing the Koyeb Terraform Provider

Today, we are glad to release the Koyeb Terraform Provider and announce that we are a Hashicorp Technology partner. Terraform has become an essential tool for many developers who manage infrastructure and applications running in the cloud. We are excited to offer our users a way to manage their Koyeb resources using Terraform.

Building a RESTful API with AWS Lambda and Express

AWS Lambda is a serverless computing service provided by Amazon Web Services (AWS) that allows you to run code without provisioning or managing servers. Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine. Together, AWS Lambda and Node.js can be used to create a RESTful API that can be triggered by events such as an HTTP request.

Secure Your AWS Lambdas with TypeScript

In the previous part of this series, we optimized our Lambda function. However, our API is open to the public — anyone with the URL can use it and get a response. In this take, we are going to secure our API using a tool called Amazon Cognito. This will only allow authenticated users access to our endpoints. Ready? Let’s go!