Kubernetes Response Engine: Falcosidekick + Fission

Wed, 01 Sep 2021 00:00:00 +0000

This blog was originally published on Falco website.

This blog post is part of a series of articles about how to create a Kubernetes response engine with Falco, Falcosidekick and a FaaS. The earlier posts in this series, show how to use Kubeless, Argo, Knative, and others to trigger a resource after getting input from Falcosidekick.

Recently, Falcosidekick received a new output type support for Fission.

In this blog post, we will cover using Falcosidekick and Fission to detect and delete a compromised pod in a Kubernetes cluster. We will briefly talk about Fission in this blog, however, you can check the complete documentation here.

Fission WebSocket Sample

Fri, 11 Jun 2021 10:50:51 +0530

Introduction

In this post we will look into how we can develop a simple a web socket based chat application using Fission functions. Fission’s NodeJS environment now has built in support for WebSocket. So, we are going to use this environment to power our simple web based chat application.

Let’s first understand how this is going to work.

We start by creating a NodeJS environment using the fission/nodejs-env Docker image.
Then we create a fission function for with broadcast.js. It is this piece of code that will broadcast a message to all connected clients.
Next, we will create an HTTP trigger for the above created function.
We then update our chat application to connect over the route, we just created.
We will also create a function to host the this chat application.
As you send a message from one chat window, the function will be triggered and the message will be broadcasted to all connected clients.

We will cover two approaches using which you can test this setup.

Gaurav Gahlot on Fission

Kubernetes Response Engine: Falcosidekick + Fission

Fission WebSocket Sample

Introduction