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Red Hat Leftovers

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Red Hat
  • Part 2: How to enable Hardware Accelerators on OpenShift, SRO Building Blocks

    In Part 1: How to Enable Hardware Accelerators on OpenShift we gave a high-level overview of the Special Resource Operator (SRO) and a detailed view of the workflow on enabling hardware accelerators.

    Part 2 will go into detailed construction of the enablement, and explain which building blocks/features the SRO provides to make life easier.

    The most important part is the DriverContainer and its interaction with the cluster during deployment and updates. We will show how we can handle multiple DriverContainer vendors, and how SRO can manage them.

  • Storage infrastructure for everyone: Lowering the bar to installing Ceph

    The last few years have seen Ceph continue to mature in stability, scalability and performance to become a leading open source storage platform. However, getting started with Ceph has typically required the administrator learning automation products like Ansible first. While learning Ansible brings its own rewards, wouldn’t it be great if you could simply skip this step and just get on with learning and using Ceph?

    Red Hat Ceph Storage 4 introduces a GUI installation tool built on top of the Cockpit web console. Under the covers, we still rely on the latest iteration of the same trusted ceph-ansible installation flows that have been with us since 2016.

  • Hacking the video stream for BlueJeans on Linux

    Like most of the rest of the world, I'm working from home and stuck inside. I saw some folks who had virtual backgrounds setup on Zoom, and I wondered if something like that was possible for the videoconferencing service that my employer (Red Hat) uses, BlueJeans. The short answer is: No. Bluejeans has no native support for anything other than a regular video cam stream.

    But this is Linux. We don't stop at the short answer.

    I started thinking, surely, it has to be possible to "man in the middle" the video stream. And indeed, it is. I did all of this on Fedora 32 (x86_64), but it should work anywhere else.

  • Talking about containers, virtual machines, and orchestration

    Throughout the two episodes, we explored my own personal history in coming to work with containers. From the bare metal cloud to virtual machines, to starting to use Docker, to delving into cloud environments. And, as Docker became the basic environment for both desktop and server environments, I clearly saw how everything became standardized for us in or by containers.

    With the growth of microservices, the management of containers becomes nearly impossible. The orchestration of containers becomes a thing. So, the niche for Kubernetes and other systems like it come to light. Even while Kubernetes has seen very good adoption rates over the past two years, as developers start to tune their own microservices mesh, they notice a lack of functionality in the vanilla Kubernetes. Then, here comes Istio.

    Companies like Google, IBM, and Lyft founded Istio. Istio answers some of the requirements for dealing with mesh, such as advanced load balancing methods, A/B testing, canary deployments, versioning, enforcing poliices, or just simply monitoring the services.

    Next up in the history of containers and solving some of the issues with microservices mesh based applications is OKD, the Origin Community Distribution of Kubernetes. They are also looking into the advantages of simplified streamlined deployment, management, operations, and security provided by maintained version of Kubernetes. And, finally, merging Kubernetes with all of the above capabilities we have Red Hat OpenShift.

    If you are interested in containers (and Docker, Kubernetes, Istio, or Kubernets on Red Hat OpenShift), join Marek and other IBM Developer Advocates in their webinars and other events.

  • Harish Pillay 9v1hp: No. Internet voting is still a No Go.

    I was asked by a friend why is it that we can’t do voting over the Internet. With all of the digitisation being done globally, and the ongoing COVID-19 issue, shouldn’t Singapore – the Smart Nation – have the general elections (which is due no later than April 2021) be done over the Internet?

    One word answer: No.

    Yes, you have done plenty of Internet banking transactions. You’ve sent money to phone numbers, you’ve received monies etc. You’ve bought stuff using your credit card over the Internet and received the goods. And yes Amazon, Alibaba, Paypal, eBay etc are multi-billion businesses that accept payments over the Internet. It is safe and it works.

    Why? Because of the simple transaction involved: you know what you paid – you can check the ledger and the recipient can check as well. E-commerce sites can see the transactions just as clearly as those involved in the transactions.

    There is no secrecy within a transaction here. There is secrecy across all transactions, but each participant in a transaction knows all the details.

    When you transfer $100 to a bank account over the Internet, you can check that it was delivered/received. You can check that your account was reduced by $100 and the recipient’s increased by $100.

    But if you are NOT part of a transaction, you have no idea what happened. So, global secrecy is enforced and that’s all well (hence money laundering, bribery etc thrives).

    The democratic process of voting has one critical thing that is different from the usual electronic transactions: the participants of the transaction DON’T KNOW WHAT TRANSPIRED because of vote secrecy.

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.