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IBM/Red Hat: DevNation, Education and Matrix for Fedora

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Red Hat

  • Cloud-native modernization or death? A false dichotomy - Red Hat Developer

    DevNation Tech Talks are hosted by the Red Hat technologists who create our products. These sessions include real solutions plus code and sample projects to help you get started. In this talk, you’ll learn about cloud-native modernization from Daniel Oh and Burr Sutter.

    Are you familiar with the tight coupling of applications with their underlying platform that makes change hard? Or, coupling that creates a lack of scalability, performance, and flexibility for existing applications built with legacy technology? How about the fact that re-architecting applications cannot be done overnight?

    If you say yes to any of these, you probably think that you have “cloud-native modernization or death.” But what if there is another way that shows you the incremental steps to refactor the application to microservices and make use of Kubernetes or Red Hat OpenShift to effectively deploy and manage it at scale on the cloud?

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  • Red Hat : Emerging Trends of Using Open Source Software in Education

    Traditionally, software has been classified into application system software and operating systems software. Application software facilitate users' work in executing routine processes while operating systems software is designed to make all the different hardware components, as well as all the peripherals, work together and operate as an integrated machine. Examples of modern operating systems software are various flavors of Microsoft Windows, and Red Hat Linux.

    The Microsoft Office Suite (with MS Word, MS Excel, MS PowerPoint, MS Access, and MS Publisher) are good examples of application software. Fact is, for almost every thinkable task under the sun, there exist an application software that can execute the task.

    Most software are proprietary and owned by somebody. To use it, one has to purchase it from the developer or a distribution point. Also, a user cannot modify the software code if it is proprietary. Software that fall in this category is classified as closed. A good example is Microsoft's products.

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  • Kevin Fenzi: Matrix and Fedora

    Recently the Fedora Council has been floating the idea of modernizing the Fedora community real-time chat platform (currently IRC hosted at freenode.net). The front runner is matrix. I last looked at matrix 4 or so years ago, so I thought it would be a good time to revisit it and see how it looks today.

    TLDR: I suspect we will have IRC and Matrix bridged together for a long time to come, if you are new user, use Matrix, if not keep using IRC.

    First a few words about IRC (Internet Relay Chat). IRC is a 30+ year old chat protocol. There’s tons of clients. There’s tons of bots and add-ons. There’s tons of gateways and aggregators. So, whats not to like? Well, everything is a add-on mish mash that can be very confusing and frustrating for new users. For example, IRC has no persistance, you only see messages while your client is connected. So, folks invented irc “bouncers” to connect for you to the IRC networks you care about and when you reconnect play back all the messages you missed. Authentication is via messaging various services bots. Encryption is via plugins or other add ons (and often not setup). So, most old timers have a client they have carefully tuned, a bouncer and a bunch of custom bots, which is fine, but new users (not surprisingly) find this all a hassle and frustrating. IRC also has it’s own culture and rituals, some of which still make sense to me, but others that don’t.

    Matrix on the other hand is pretty new (6 years). You can interact with it as a guest or have an account on a particular homeserver. If you have an account all your history is saved, and can be synced to your client on login. You can send pictures and moves and fancy gifs. You can (somewhat) have end to end encryption (see clients below) with encrypted rooms where the server can’t know what was said in the room. You can have ‘reactions’ to things people say. You can redact something you said in the past. You can have a nice avatar and a Real Name (if you like). You can join rooms/conversations with other matrix servers (for example the kde, mozilla and others are running servers). You can get read receipts to see who read your message and notifications when someone is typing (also client dependent see below).

    [...]

    The real question is how long should we keep the current situation with Matrix and IRC bridged? What advantages would be dropping the irc bridges bring? Right now, not too much. End to end encryption isn’t that interesting for an open source project. Reactions are interesting (think about using them to vote up or down proposals in meetings?), but we have done without them so far. I think migration from IRC is going to be a long process, nor is there great advantage to pushing things to go faster. I hope that over coming years matrix clients continue to get better and implement more features. Someday (probably years down the road) more Fedora users will be on Matrix than IRC, then sometime after that things will have shifted enough that the community will start assuming you are on Matrix.

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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.