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Programming Leftovers

Submitted by Roy Schestowitz on Tuesday 1st of March 2022 10:56:46 PM Filed under
Development
  • Exploring an Open Source Toolkit for Debugging Kubernetes - KoolKits | HackerNoon

    KoolKits (Kubernetes toolkits) are highly-opinionated, language-specific, batteries-included debug container images for Kubernetes. In practice, they’re what you would’ve installed on your production pods if you were stuck during a tough debug session in an unfamiliar shell.

    To briefly give some background, note that these container images are intended for use with the new kubectl debug feature, which spins up Ephemeral containers for interactive troubleshooting. A KoolKit will be pulled by kubectl debug, spun up as a container in your pod, and have the ability to access the same process namespace as your original container.

    Since production containers are usually rather bare, using a KoolKit enables you to troubleshoot with power tools instead of relying on what was left behind due to the generosity (or carelessness) of whoever originally built the production image.

  • Qt Design Studio 3.1 Released

    We are happy to announce the release of Qt Design Studio 3.1.

  • Digital advertising – Use cases and best practices

    This blog post is the first in a series that aims to show Qt users how they can generate additional revenue from their software thanks to digital advertising.

  • Auto-incrementing version letters

    In other words, I tail out the last record in the table, cut out the code in that last record, and add one to it with BASH arithmetic.

    But what if I wanted to have version letters at the end of mixed letter-number codes, like 101a, 101b, 101c etc? And also wanted to increment version numbers after a letter cycle, like 101c, 101d, 102a, 102b...?

    As is usually the case with command-line operations, there's more than one way to do it. This post looks at a couple of solutions to this particular problem, namely incrementing (single) version letters and version numbers on a fixed letter cycle.

  • Linux Foundation's Zephyr Project Flies Higher with Implementations of its RTOS and the Addition of New Members

    It is becoming increasingly difficult for organizations to effectively process data through their system while restricted by outdated traditional operating systems; instead, real-time operating systems (RTOS) are driving past prior constraints to provide enhanced functionality. As innovators rapidly develop a myriad of sophisticated technologies that require constant streams of data to operate effectively, the importance of overhauled real-time operating systems has become central to the success of data-critical solutions and devices.

»

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Dilution and Misuse of the "Linux" Brand

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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