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today's leftovers

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Misc
  • Private cloud: Avoiding the high cost of operations

    Technology plays a strategic role in the success of any organisation. Whether you’re part of an enterprise with thousands of employees across the globe or running a startup from the garage of your home, the success of the business comes down to how you consume technology.

    However, it’s not that straightforward, and IT decision makers usually have to make a lot of trade-offs when investing in technology. It’s very common to hear phrases like “We would like to implement this solution… but we don’t have the budgets” or “we don’t have the knowledge and skills” or maybe “it doesn’t work well with our environment”.

  • OpenCost - open source Kubernetes cost monitoring | SUSE Communities

    We are excited to share the launch of OpenCost, an open source project that provides real-time cost monitoring for teams running Kubernetes workloads.

    As container and Kubernetes adoption continues to grow, navigating the complexities around measuring and allocating cost is becoming a business-critical challenge. A recent CNCF survey showed overspend is increasingly a problem for teams scaling their Kubernetes deployments, and more than 70% of organizations do not have accurate cost monitoring in place.

  • Impressions from the openSUSE Conf 2022 - Day One: openQA and BCI | SUSE Communities

    First I have been busy saying hello and salute to all my dear SUSE colleagues coming from Czechia, Italy, Spain and of course Germany. I have not seen them all for a long time. Finally, Doug deMaio, the openSUSE Community Manager, welcomed all open source enthusiasts in the Z-Bau in Nuremberg and directed us through the options that are offered by the rich and diversified program. A lot of really good sessions were offered, many of them in parallel.

    I am a big fan of openQA and of course I listened to Oliver Kurz’ talk about the newest highlights of that open source testing framework, the heart and soul of the automated QA behind the openSUSE, SUSE Linux Enterprise and Fedora distributions.

  • Using an old printer to create organic pottery | Arduino Blog

    Traditional pottery has been around for many thousands of years and is known for the mixing, shaping, and baking of clay in order to create artful items. Tools such as the pottery wheel and kiln are iconic, and Guillermo Perez Guillen wanted to make a pottery wheel of his own that would not only be inexpensive, but also work with organic cornstarch-based mediums instead of clay.

    Guillen started his project by finding an old printer and removing the exterior and paper tray, leaving just the horizontal rail and base. From here, he added a potentiometer on the side that enables the user to control how fast the wheel below rotates. In terms of electronics, the platter was taken from a CD player and its motor is driven by a single TB6612FNG dual-motor driver. On the back is an Arduino Mega 2560, which is responsible for reading the analog output of the potentiometer and mapping it to an 8-bit speed that can be outputted via a PWM signal to the motor driver.

  • Microconferences at Linux Plumbers Conference: Zoned Storage Devices (SMR HDDs & ZNS SSDs)

    Linux Plumbers Conference 2022 is pleased to host the Zoned Storage Devices (SMR HDDs & ZNS SSDs).

    The Zoned Storage interface has been introduced to make more efficient use of the storage medium, improving both device raw capacity and performance. Zoned storage devices expose their storage through zone semantics with a set of read/write rules associated with each zone.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

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.