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Unleashing a Docker Swarm orchestrator is a great (and relatively easy) way to deploy a container cluster. Yes, you could go with Kubernetes for more management features, but when you need the bare bones of a simple container cluster, Docker Swarm is a pretty good way to go. The one […]

As we know, volumes provide a flexible and powerful way to add persistent storage to managed dockers, but what should we do if we want to share storage volumes across several Docker hosts, for instance, a Swarm cluster? In this topic, we will consider a simple method of creating shared […]

In this post, I’m going to go over my short journey to setup my PHP development environment on Windows 10. I will tell you how to setup PHPStorm to debug PHP applications using XDebug and PHP setup over Ubuntu 18.04 LTS on WSL2. I would like to work against the […]

I’ve been playing around at using WSL2. This is my first time using Window Subsystem for Linux having skipped over WSL1. I typically like to write my software in Node JS, TypeScript and React and I assumed I would be fine jumping into the projects I had previously been working […]

Docker Swarm is a feature of Docker that makes it easy to run Docker hosts and containers at scale. A Docker Swarm, or Docker cluster, is made up of one or more Dockerized hosts that function as manager nodes, and any number of worker nodes. Setting up such a system […]

В версии CentOS 7 для управления iptables начали использовать firewalld, он в свою очередь управляется через команду firewall-cmd. В отличии от iptables, firewalld оперирует зонами и сервисами, а не цепочками и правилами. Каждому сетевому интерфейсу присваивается определенная зона, она может быть как пользовательская так и предустановленная. Список предустановленных зон: drop […]

You probably already know some comparison operators in PHP. Things like the ternary ?:, the null coalescing ?? and the spaceship <=> operators. But do you really know how they work? Understanding these operators makes you use them more, resulting in a cleaner codebase. Ternary operator The ternary operator is […]

Or in other words, dealing with complex database relations and Laravel models. Recently I had to deal with a complex performance issue in one of our larger Laravel projects. Let me quickly set the scene. We want an admin user to see an overview of all people in the system […]

Do you prefer composition over inheritance? Yes, that’s great. Why aren’t your classes final then? Oh, you have tests and you mock your classes. But why is that a problem? Since I started using final first I got rid of many problems. Most programmers I meet already know about the benefits of not […]

There are situations where you need to check what class an object is. The easiest thing is just checking that with instanceof and a simple if statement. But that doesn’t look that good if you’ve got many cases: if($objectToTest instanceOf TreeRequest) { echo «tree request»; } elseif($objectToTest instanceOf GroundRequest) { […]