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Red Hat and SUSE: Openshift, RHEL and Cloudwashing

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Red Hat
SUSE
  • Using Kubernetes Operators to Manage Let’s Encrypt SSL/TLS Certificates for Red Hat OpenShift Dedicated
  • No Downtime Upgrade for Red Hat Data Grid on Openshift

    In a blog post I wrote on the Red Hat Developer’s Blog, I wrote about multiple layers of security available while deploying Red Hat Data Grid on Red Hat Openshift. Another challenging problem I see for customer is performing a no downtime upgrade for Red Hat Data Grid images (published on Red Hat Container Catalog). That’s what we’re going to tackle in this post.

    If you’re new to it, Red Hat Data Grid is an in-memory, distributed, NoSQL datastore solution. With it, your applications can access, process, and analyze data at in-memory speed designed to deliver a superior user experience compared to traditional data stores like relational databases. In-memory Data Grids have a variety of use cases in today’s environments, such as fast data access for low-latency apps, storing objects (NoSQL) in a datastore, achieving linear scalability with data distribution/partitioning, and data high-availability across geographies.

  • World domination with cgroups in RHEL 8: welcome cgroups v2!

    One of the great things about open source development is that features can be designed and implemented organically and grow and change as needed. However, a drawback is that this methodology can sometimes lead to a hot mess and uncomfortable technical debt.

    In the case of cgroups v1, as the maintainer Tejun Heo admits, "design followed implementation," "different decisions were taken for different controllers," and "sometimes too much flexibility causes a hindrance."

    In short, not all of the controllers behave in the same manner and it is also completely possible to get yourself into very strange situations if you don’t carefully engineer your group hierarchy. Therefore, cgroups v2 was developed to simplify and standardize some of this.

    Let’s take a look at how the two versions are different. I’m going to show two different diagrams - controllers are in yellow blocks and cgroup directories have a grey background.

  • Cloud Strategies in Frankfurt
  • Are We Ready to Ditch the Data Center? [Ed: Perpetuating the myth that when you outsource all business functions to the Pentagon through its partners the servers just vanish and cease to exist]

    Over the past few decades, organizations have come to rely on their own data centers to run business applications, network their users together and for data storage. Initially, these data centers were largely hardware-centric.In the early days, a mainframe and terminals were the order of the day, before we moved onto the RISC/UNIX era, followed more recently by the server sprawl period of commodity X86 servers.
    But now, the whole concept of an organization-owned data center is going through a radical change. It started with virtualization, which separated the direct relationship between application software and the underlying hardware infrastructure. This helped improve server utilization, efficiency, and provisioning speed. The next step towards an even greater level of abstraction is the move to a software-defined infrastructure (SDI), including compute, storage and networking.

More in Tux Machines

Tizonia – powerful open source cloud music player for the Linux terminal

The Linux platform has matured into an excellent way of listening to streaming music services. There are clients available for most of the popular music streaming services. But what if you want a single app that covers the very popular ones without straying away from the Linux terminal. Step forward Tizonia. Tizonia offers access to some excellent streaming music services — all from the command line. The software supports popular services such as YouTube, Spotify, Google Play Music, SoundCloud, Chromecast, and more. Tizonia is innovative software. It doesn’t use FFmpeg, libav, gstreamer or libvlc for playback. Instead, the software’s multimedia framework is based on OpenMAX IL 1.2. OpenMAX (Open Media Acceleration) is a non-proprietary and royalty-free cross-platform set of C-language programming interfaces. It provides abstractions for routines that are especially useful for processing of audio, video, and still images. Tizonia is C/C++ software which integrates online services with Python connectors/proxies. This means it should be fairly easy to integrate new services, assuming a Python-based API is accessible. Read more

What Is AppImage in Linux?

On a Linux distro, you should always install new software with the aid of your package manager when possible. It keeps things clean, and all files are tracked by the manager and can be easily removed later. This also helps avoid potential trouble when you later upgrade your distribution. But since your distribution might not have the software you need, or some might be too old, you sometimes have to resort to alternatives. Out of all these alternatives, though, only choose to download third party “.deb” or “.rpm” files as a last resort. What Is AppImage? On Windows, you can download a ZIP archive, extract the contents to a directory, and run the application within, without having to install it. This is called a portable app because you can copy it to a USB stick and then run it on any computer that uses the Windows operating system. An AppImage, though technically constructed in a different way, works the same from the user’s perspective. You download one file and run the program on your Linux operating system without having to install anything. Furthermore, you can also copy this on a USB stick, and it will run on Debian, Ubuntu, Arch Linux, openSUSE, Fedora, or any other Linux distribution. Read more

5 Business Tools for Start-ups Running on Linux in 2019

There is no denying that Linux offers more flexibility and security than Microsoft Windows. However, if you use a Linux system for your business, then there is no need to compromise on productivity. The following are some of the most amazing business tools for Linux OS that you can use to enhance business operations and reduce costs: Read more

D9VK 0.13f

  • D9VK for translating D3D9 to Vulkan for Wine has another new version out, 0.13f - "Hypnofrog"

    Developer Joshua Ashton is certainly keeping busy, with another brand new release of D9VK now available. As a reminder: D9VK is based on DXVK. While DXVK focuses on translating D3D11 and D3D10 into Vulkan for use in Wine, D9VK focuses on D3D9. Eventually, they should hopefully merge into one awesome project. Version 0.13f - "Hypnofrog" is coming in less than a week after the last release, yet still manages to sound interesting given that's not a lot of time. There's some "New General API Stuff", "New Fixed Function Support", "New Shader Support" and bug fixes for "D3D9" and "DXSO (Shader Fixes)". Most of the changelog is highly technical language for those of you who understand graphics APIs. The main takeaway, as always, is that each new release should bring more compatibility with Windows games in Wine that use DirectX 9. Since D9VK uses Vulkan, it should perform better than vanilla Wine.

  • D9VK 0.13f Brings Extra Features For Direct3D 9 Over Vulkan

    It was just earlier this month that D9VK 0.13 was released with new features while now a "0.13f" Hypnofrog release is available in pre-release form.