elixir Distributed consensus with Raft When working with distributed systems so many of the problems we're trying to solve boil down to managing state across multiple nodes. Whether it's replicating databases, mirroring message queues or achieving consensus in
Kubernetes WAF Motivation I'm not going to attempt to properly define what a Web Application Firewall (WAF) is. I will just say this: unlike a traditional firewall that filters/routes ports & TCP packets, a
Rails on Kubernetes - Part 3 Overview This is Part 3 of the Rails on Kubernetes series. Part 1: Rails and Docker Compose Part 2: Kubernetes Part 3: Deployments, Rolling updates and Scaling Code If you don't want to
Rails on Kubernetes - Part 2 Overview This is Part 2 of the Rails on Kubernetes series. Part 1: Rails and Docker Compose Part 2: Kubernetes Part 3: Deployments, Rolling updates and Scaling Updates 2017-11-13: Updated all docker images
Rails on Kubernetes - Part 1 Overview This is a lengthy topic that is split into multiple parts: Part 1: Rails and Docker Compose Part 2: Kubernetes Part 3: Deployments, Rolling updates and Scaling Updates 2019-09-29: Upgrade gems, few
Wordpress and Varnish on Kubernetes Step by Step Overview My goal with this post is to explore Kubernetes' Ingress Controller and Ingress resources. The best way to do that is to deploy a real application: a Wordpress site with a Varnish
Mocking Stripe with Rspec Motivation There are a many ways to deal with testing integrations. In the past I have used VCR with great success, specially when external responses are complex JSON or XML structures. In my
React - starting from scratch with Webpack, Babel and ESLint Contents Introduction Webpack Webpack-dev-server Styles ES6/ES7 React ESLint Source Maps Production Build What is this about About a month ago, I decided to learn React and begun reading Getting started articles on
Getting started with Kubernetes I recently started playing with Kubernetes and deployed a simple Express app as practice. You can follow along after you have installed minikube for your OS. You can then follow along this tutorial
Docker Ruby Images In this article I will explore Docker more hands-on and describe various features of Docker using a few Ruby images as examples. You can read my previous article for an intro to Docker
Docker vs Virtualization The motivation behind this post is to answer a simple question: What's the difference between Docker and classic Virtualization techniques? I set out to research this topic in depth and I will share
coreos CoreOS Test Drive Vagrant setup If you follow the CoreOS documentation and try to get a Vagrant cluster up and running - the etcd cluster is not created by default. After cloning the Vagrant CoreOS repo,
nginx Configuring Nginx and Unicorn I first heard about Unicorn in an interview with 37Signal's server admin Mark Imbriaco and it made me really curious. There are a few great resources explaining how Unicorn works and a neat
haproxy Setting up a High Availability Ruby on Rails environment with keepalived, nginx, HA Proxy and Thin on Debian Lenny Contents Configure Keepalived and Nginx Configure HA Proxy Configure Thin Overview Nginx and HA Proxy have similar functions: they can both be used as reverse proxies and load balancers. In our case Nginx
javascript Building your own Lightbox with Javascript Why write your own lightbox? The simple answer is: to learn how it's done. If you're going to use if for an image gallery, embed flash and videos or even to load Ajax
