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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

LibreOffice 6.4.3 Release Candidate Version 1 Released Today!

LibreOffice 6.4.3 RC1 Released: LibreOffice is one of the best open-source text editors. LibreOffice comes as default application release of Linux OS. LibreOffice is developed by Team Document Foundation. Today they announced that the LibreOffice 6.4.3 RC1 version has been released. As per their calendar, LibreOffice 6.4.3 RC1 has been released exactly on today!. This RC1 version has many bugs fixes and tweaks in essential features. Read more

Unifont 13.0.01 Released

Unifont 13.0.01 is now available. This is a major release. Significant changes in this version include the addition of these new scripts in Unicode 13.0.0: U+10E80..U+10EBF: Yezidi, by Johnnie Weaver U+10FB0..U+10FDF: Chorasmian, by Johnnie Weaver U+11900..U+1195F: Dives Akuru, by David Corbett U+18B00..U+18CFF: Khitan Small Script, by Johnnie Weaver U+1FB00..U+1FBFF: Symbols for Legacy Computing, by Rebecca Bettencourt Read more

Programming: micro.sth, RProtoBuf, Perl and Python

  • Introducing micro.sth

    Many developers turn their noses up at PHP, but I have a soft spot for it. For me, it's the most approachable programming language by far. It feels intuitive in a way no other languages do, and it makes it possible to cobble together a working application with just a handful of lines of code. So whenever I can't find a tool for a specific job, I try to build one myself. The latest project of mine is a case in point. I was looking for a simple application for keeping a photographic diary, and I was sure that I'd be able to find an open-source tool for that. I searched high and low, but I came back empty-handed. Sure, there are plenty of static website generators, but I'd prefer something that doesn't require me to perform the write-generate-upload dance every time I want to post a quick update. And I need something that I can use not only to maintain a simple diary, but also store notes, manage tasks, and draft articles -- all this without getting bogged down by configuring templates, defining categories, and tweaking settings. And because I want most of my content to be private, I should be able to protect access to it with a password.

  • Dirk Eddelbuettel: RProtoBuf 0.4.17: Robustified

    A new release 0.4.17 of RProtoBuf is now on CRAN. RProtoBuf provides R with bindings for the Google Protocol Buffers (“ProtoBuf”) data encoding and serialization library used and released by Google, and deployed very widely in numerous projects as a language and operating-system agnostic protocol. This release contains small polishes related to the release 0.4.16 which added JSON support for messages, and switched to ByteSizeLong. This release now makes sure JSON functionality is only tested where available (on version 3 of the Protocol Buffers library), and that ByteSizeLong is only called where available (version 3.6.0 or later). Of course, older versions build as before and remain fully supported.

  • Perl Weekly Challenge 53: Rotate Matrix and Vowel Strings

    These are some answers to the Week 53 of the Perl Weekly Challenge organized by Mohammad S. Anwar.

  • Weekly Python StackOverflow Report: (ccxxi) stackoverflow python report
  • Python: Is And ==

    In Python, == compares the value of two variables and returns True as long as the values are equal.

today's howtos