A “magic” way to inject a file into Pod Containers — Have you ever noticed that when you create Pods in Kubernetes, the containers (usually) contain an authentication token file located at /var/run/secrets/kubernetes.io/serviceaccount/token ? You can try it out by running the following command in your cluster: $ kubectl run busybox --image=busybox --restart=Never -it --rm -- ls -l /var/run/secrets/kubernetes.io/serviceaccount/token …

If you’ve been building web services on GCP Cloud Functions or Cloud Run, then you might have noticed that Google Cloud has been missing an important piece of infrastructure: an API Gateway. While AWS has had its Amazon API Gateway for a few years now, GCP had no equivalent service…

Having worked with a few Distributed Systems over the years such as Apache Kafka and Ethereum nodes I was wondering what it would take to build a minimal one. In this article we’ll be building a micro “kafka-like” distributed logging app with super simple features, using Go and Hashicorp Consul…

Do you deploy your web apps to cloud virtual machines such as Digital Ocean Droplets or Scaleway Cloud Instances ? …

Elevator Saga ported to Go WASM input — A few days ago, I wanted to take Go WebAssembly out for a spin, but I wasn’t sure what to build. Maybe a game ? but I didn’t really want to build a game from scratch. So I remembered the Elevator Saga, a programming game by Magnus Wolffelt I stumbled…

Gophers Meet Badgers Over the years I’ve used a number of Job Queues such as Sidekiq, Kue, or Faktory and they are often a central piece of many apps I build. …

Go + Serverless = ❤️ — Google Cloud Platform now supports Go 1.11 for Cloud functions. Go and Serverless are 2 things I’m very excited about these days so I decided to give this new GCP feature a try and build a basic Image Resizer in pure Go using the disintegration/imaging package. Resizing gophers Sometimes you just have…

Testing a Node.js + AWS Lambda + API Gateway app — Serverless computing and FaaS (Function as a Service) are planned to grow massively over the next few years. And each major cloud provider already has an offering: AWS Lambda, Google Cloud Functions, Azure Functions… But what does it mean for us web developers ? How can we adapt our development…

A hands-on use case — The transparency issue Public blockchains like the Ethereum mainnet keep an immutable record of transactions, but the issue is that the ledger is 100% transparent and anybody with access to an Ethereum node has access to all of the data on the blockchain. When discussing potential projects with clients recently, whenever I explained…