Posts

Have you ever deployed a new version of your app in Kubernetes and noticed errors briefly spiking during rollout? Many teams do not even realize this is happening, especially if they are not closely monitoring their error rates during deployments. There is a common misconception in the Kubernetes world that bothers me. The official Kubernetes documentation and most guides claim that “if you want zero downtime upgrades, just use rolling update mode on deployments”. I have learned the hard way that this simply it is not true - rolling updates alone are NOT enough for true zero-downtime deployments. And it is not just about deployments. Your pods can be terminated for many other reasons: scaling events, node maintenance, preemption, resource constraints, and more. Without proper graceful shutdown handling, any of these events can lead to dropped requests and frustrated users. In this post, I will share what I have learned about implementing proper graceful shutdown in Kubernetes. I will show you exactly what happens behind the scenes, provide working code examples, and back everything with real test results that clearly demonstrate the difference. ...

Hi there! Recently, I’ve deployed microbin, minimalistic opensource “pastebin”-like service, into my homelab to share temporal files/text between devices. It works quite well. A few days ago, I started wondering: could I upload files or paste text into Microbin directly from the iOS Share menu? The short answer is yes. It could be done using iOS’s builtin “Shortcuts”. ...

With the rapid growth of GenAI solutions and the continuous launch of new applications, understanding the fundamental challenges and solutions of the web is becoming increasingly important. One of the core challenges is delivering content quickly to the end user. This is where a CDN comes into play. ...

About six years ago, while operating a large Java-based platform in Kubernetes, I noticed a recurring problem: our services required significantly higher CPU and memory during application startup. Heavy use of Spring Beans and AutoConfiguration forced us to set inflated resource requests and limits just to survive bootstrap, even though those resources were mostly unused afterwards. This workaround never felt right. As an engineer, I wanted a solution that reflected the actual lifecycle of an application rather than its worst moment. ...

Whether you’re curious about open source or wondering how to make a meaningful impact, this post guides you through the process. You’ll learn why contributing is important, discover the different ways to get involved, and find practical steps to take your first contribution. ...