The list of Alpine Linux issues that can cause you a great amount of grief — Nowadays, Alpine Linux is one of the most popular options for container base images. Many people (maybe including you) use it for anything and everything. Some people use it because of its small size, some because of habit, and some, just because they copy-pasted a Dockefile from some tutorial. …

This is what happens when you set resource requests and limits on your Kubernetes Pods and Deployments — There’s a lot of “magic” that happens behind the scenes to make the whole Kubernetes work. One of those is resource management and resource allocation done by Linux cgroups. In this article, we will take a deep dive into what cgroups are, how Kubernetes uses them to manage Node resources…

Simplify your Python code by replacing all the unnecessary if/else statements and match/case blocks with dynamic dictionary function lookups — Have you ever written a long chain of if/ else statements or a huge match/ case block, with all statements matching against a list of value — and wondered how you could make it more concise and readable? If so, then the dictionary dispatch pattern might be a tool for…

Learn how to use Grafana Phlare and continuous profiling to discover bottlenecks in you code and boost the performance of your Python apps — Continuous profiling is a great tool for optimizing the performance of applications. It allows us to continuously monitor and analyze application’s resource usage, identify bottlenecks, and use resources more efficiently. …

Can recursive functions use “lazy evaluation”? — Yes, they can — Using Python’s generator functions! — We all are familiar with Python’s generators and all their benefits. But, what if I told you that we can make them even better by combining them with recursion? …

There are many less-known Python magic methods—let’s find out what they do and how we can use them in our code — Python’s magic methods — also known as dunder (double underscore) methods — can be used to implement a lot of cool things. Most of the time we use them for simple stuff, such as constructors (__init__), string representation (__str__, __repr__) or arithmetic operators (__add__/__mul__). …

A crash course in using Python and Mastodon’s API to build bots, analyze data, authorize users, respond to notifications and much more — With what’s happening in Twitter, many people are considering moving to Mastodon. Like Twitter, Mastodon also has an API that can be used to create many useful application, bots, to analyze data, respond to notification or simply post some statuses. In this article we will explore all the things Mastodon…

Kubernetes v1.25 has introduced Container Checkpointing API — Here’s how you can use it for container backup and restore or forensic analysis — Kubernetes v1.25 introduced Container Checkpointing API as an alpha feature. This provides a way to backup and restore Pod containers — without ever stopping them. This feature is primarily aimed at forensic analysis, but general and restore is something any Kubernetes user can take advantage of.

A crash course in using Python and Google APIs to automate all the things you do with Gmail, Google Drive, Calendar, or any other Google API — Google has literally hundreds of APIs, including ones for Gmail, Drive, Maps, Translation, Analytics and more. All of these share the same concepts like authorization, pagination or media uploads/downloads. …