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Software: Book Squire, isolcpus, GNU Health and rpminspect

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Software
  • Book Squire Is Ten Years Old

    I choose Python for the first version. I got the logging in, navigating of the Library site and the scraping of account data working as a script. Then decided to built it into an application running under the then new Google App Engine platform. That worked for a while just fine. Over time I added a database to store user information and an email notifications feature with nightly reports delivered when accounts had notable events worth mentioning.

    After working on a few Django applications I decided to move Book Squire to Django and host it on a VPS. Here it stayed for many years working well except for the random updates made to the Library site which broke the parsing of the pages.

    Eventually, the Library upgraded there system in a significant way. Actually made it somewhat user friendly. Still it didn't support multiple cards and you had to click around a bit so Book Squire was reworked and it continued on.

    For my latest update to Book Squire I've rewritten it in Clojure. The latest version is much cleaner internally and suspect the maintenance going forward will be easier. The old Python code did suffer overtime as refactoring was never justified enough because it just worked.

  • Matt Fleming: isolcpus is deprecated, kinda

    A problem that a lot of sysadmins and developers have is, how do you run a single task on a CPU without it being interrupted? It’s a common scenario for real-time and virtualised workloads where any interruption to your task could cause unacceptable latency.

    For example, let’s say you’ve got a virtual machine running with 4 vCPUs, and you want to make sure those vCPU tasks don’t get preempted by other tasks since that would introduce delays into your audio transcoding app.

    Running each of those vCPU tasks on its own host CPU seems like the way to go. All you need to do is choose 4 host CPUs and make sure no other tasks run on them.

    How do you do that?

  • GNU Health HMIS 3.6 Release Candidate 1 is out !

    We are pleased to announce the initial release candidate for the upcoming GNU Health HMIS server !

  • rpminspect-0.7 released, bug fixes and a new integration test suite

    rpminspect-0.7 has been released. The main things in this release are a new integration test suite and many bug fixes. There is one new user feature and that's the -t or --threshold option.

    The -t option lets you control the result code that triggers a non-zero exit code from rpminspect. By default, this is set to VERIFY. But you could set it to BAD or INFO or any other valid result code in the program. The result code specified by this option means that any result in rpminspect at that code or higher will trigger a non-zero return code. Combined with the -T option, this can be a useful tool for some types of CI system integration.

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.