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Red Hat Leftovers

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Red Hat
  • Assess resource consumption with Ansible callback plugins

    When you need metrics about playbook execution, callback plugins can help you drill down into the data and troubleshoot issues.

  • Red Hat OpenShift 4 Migration: Modernizing your cloud platform

    So you’re still using Red Hat OpenShift 3 in your production environment, and everything is running smoothly. "Why should I update to Red Hat OpenShift 4? Version 3 works just fine," you might say.

    Maintenance Support for Red Hat OpenShift 3.11 ends June 2022, followed by a final two-year end-of-life phase. You might not be sure how to start your migration to Red Hat OpenShift 4 or understand what it offers. In this post, we’ll walk you through some new features and benefits to help you get started.

  • Red Hat Developer roundup: Best of October 2021

    We're baaack (just in time for Halloween) with the monthly highlights from our developer experts working at Red Hat. This month features hands-on introductions to VS Code for Java extension 1.0, the new developer console for Red Hat OpenShift 4.9, and Helm Chart for Red Hat JBoss Enterprise Application Platform. We also have a quick guide to using Multipath TCP (included with Red Hat Enterprise Linux 8) to cut through the noise in your network. Keep reading for these highlights and more.

  • Announcing Service Binding Operator 1.0 GA | Red Hat Developer

    In the context of Kubernetes, the exposure of Secrets for connecting applications to external services such as REST APIs, databases, and event buses is manual and bespoke. This action is usually referred to as binding. The process of configuring and maintaining the binding is error-prone and can lead to challenges and debug failures. Indeed, each service provider suggests a different way to access their Secrets, and each application developer in turn consumes those Secrets in a custom way for their applications.

    Service Binding Operator 1.0, now in general availability (GA), expands the developer capabilities available on Red Hat OpenShift. As we'll see in this article, Service Binding Operator makes it easy for developers to connect their applications to backing services like REST APIs, databases, event buses, and others, providing a consistent and predictable experience.

  • Send S3 data to Telegram with Red Hat OpenShift Serverless Functions

    Red Hat OpenShift Serverless Functions is a framework with tooling to support function development. The framework is built on top of the open source Knative project. It has been available in Tech Preview since Red Hat OpenShift 4.7 and is available on 4.6 (EUS) as well. The central tool in OpenShift Serverless Functions is the kn func command, a plug-in extending the Knative kn command-line interface (CLI) to enable function development on the Knative platform.

    Development of this plug-in is led by Red Hat through the Boson Project. This open source project has generated interest in the Knative community because function development capabilities atop Knative have been long-awaited and highly anticipated. The Boson Project has been officially donated to the Knative project and its community.

    Let's take a look at some of the new features added recently to OpenShift Serverless Functions. To demonstrate these capabilities, we will implement a simple Quarkus function that consumes data from an AWS S3 bucket and sends it to a Telegram chat.

  • IT careers: 10 ways to prove yourself during remote work | The Enterprisers Project

    If an IT professional achieves a big win in her home office in the country, does it make a sound?

    Perhaps you’re aware of the term “proximity bias:” the unconscious human tendency to favor what is closest to us. Veteran remote workers have long been aware of the predisposition for – and, in many cases, a clear cultural practice of – valuing more highly those employees who physically come into the office every day. People now navigating a hybrid work environment for the first time may also see this dynamic.

    “It can be difficult to prove your value in a remote work situation because no one can see you and get a visual sense of how you’re performing,” says Cliff Milles, lead technical recruiter at Sungard Availability Services.

    This can be a particular challenge for IT leaders. “In more senior positions there is more emphasis on relationship-building, stakeholder management, and leading by example, which then sets the tone and culture for others,” says Lars Hyland, chief learning officer of Totara Learning, a provider of enterprise learning, engagement, and performance management technology.

  • 4 IT leadership tips for turbulent times | The Enterprisers Project

    Even as many IT teams delivered results with little disruption in the last 18 months, the pandemic brought into focus the importance of soft skills in technology leadership. This is where businesses need to invest the most time in the remaining weeks of 2021 and beyond.

    Technical expertise has always been a given in IT roles, but the ability to motivate staff, help build their skills, and look after their emotional wellbeing requires a different set of capabilities entirely. Successfully blending the two elements is the ultimate challenge of any tech leader.

    Here are some key areas to focus on to ensure future success for your IT teams.

  • A Clang compiler, a hidden visibility, and a weak symbol

    The LLVM packaging team recently ran into a compiler problem. A build of the LLVM package with Clang, with link-time optimization activated, failed validation. This article steps through how we explored, identified, and ultimately fixed the problem.

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.