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Red Hat Leftovers

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Red Hat
  • Eat up fewer resources in Cryostat 2.1 with sidecar reports

    Cryostat is a tool for managing JDK Flight Recorder data on Kubernetes. Version 2.1 of Cryostat introduces the option of using a sidecar reports container to generate automated analysis reports for JDK flight recordings. Previously, the main Cryostat container handled the report generation. Report generation is a resource-intensive operation, and as a result, users may find themselves overprovisioning the Cryostat container to meet peak resource demands. Those resources may in turn end up unused if you're not generating reports.

    With this new option to delegate report generation to a sidecar container, users will find it easier to provision resources more efficiently. When report generation is not a concern, the main Cryostat container, including its web server and various lightweight operations over HTTP and JMX, has only a small resource footprint. Based on their report generation workflow, users can provision resources to the sidecar reports container accordingly and spin up any number of replicas of that container.

  • Cockpit 270

    Cockpit is the modern Linux admin interface. We release regularly. Here are the release notes from Cockpit 270, cockpit-machines 269, and cockpit-podman 48...

  • Digital transformation: 5 reality checks before you take the plunge

    Digital transformation (DX) can mean just about anything and everything in the business and technology spectrum. Starting with the transition from analog to digital, the term has evolved to refer to the adoption of social and mobile technologies and more recently, to the implementation of any of a plethora of digital technologies.

    With so much focus on digital, enterprises risk losing sight of what really matters: the actual transformation.

  • 6 tips for effective meetings in a hybrid work environment

    The pandemic has changed meeting culture forever. Zoom has become a verb and a household name. While online meetings were always part of business life, the pandemic and its aftermath made them an essential part of doing business for the foreseeable future. With distributed workforces now standard, doing online meetings “right” is more important than ever.

    After hosting and attending thousands of meetings in my many stints at companies large and small, I’ve become an expert on what it takes to have a productive meeting. Here are some key dos and don’ts and some tips and tricks for making online and hybrid meetings more effective.

More in Tux Machines

RHEL 9 delivers latest container technologies for development and production

Three years ago, with the release of Red Hat Enterprise Linux 8 (RHEL 8), we delivered a new set of container tools with a new concept called Application Streams. These new container tools enabled RHEL users to find, run, build and share containers. For more information on why RHEL moved from Docker to Podman (and the journey it took us to get there) see RHEL 8 enables containers with the tools of software craftsmanship.  In our previous release, What's new in Red Hat Enterprise Linux 8.5 Container Tools?, we introduced a lot of the foundational features and capabilities needed to get to RHEL 9. Read more

Complete Upgrade Guide to Linux Mint 21 (Vanessa) from 20.3

A complete tutorial on how to upgrade to Linux Mint 21 (Vanessa) from Linux Mint 20.3 with the graphical method. Read more

Red Hat Leftovers

  • SSH from RHEL 9 to RHEL 5 or RHEL 6 | Richard WM Jones

    RHEL 9 no longer lets you ssh to RHEL ≤ 6 hosts out of the box. You can weaken security of the whole system but there’s no easy way to set security policy per remote host.

  • IT leadership: You gotta have H.E.A.R.T.

    Humility, Empathy, Adaptability, Resilience, and Transparency: H.E.A.R.T.

  • Artificial Intelligence: 3 ways the pandemic accelerated its adoption

    The need for organizations to quickly create new business models and marketing channels has accelerated AI adoption throughout the past couple of years. This is especially true in healthcare, where data analytics accelerated the development of COVID-19 vaccines. In consumer-packaged goods, Harvard Business Review reported that Frito-Lay created an e-commerce platform, Snacks.com, in just 30 days.

  • How open organizations can harness energy disruptions

    Many people talk a lot about the values of Open Organization Principles, but in many ways, they require people to change how they do things, which can be difficult. That is true for businesses and industries as well. Disruption in many sectors is coming. How do we use Open Principles to address them? This article looks at what's happening in industries related to energy and transportation when it comes to drastic costing changes that will lead to industrial disruption. Business disruption is happening through new technology or methods, which will slash costs. This is forcing industrial change. Consider the oil, coal, natural gas, nuclear, petroleum, biofuels, and charcoal (the primary energy in many developing countries) industries. All these industries are grouped in the fossil fuel-burning energy-generating industry. Imagine them all becoming obsolete and totally replaced by the solar and wind industries in the next decade or so because of costs. That is industrial disruption.

  • OpenTelemetry: A Quarkus Superheroes demo of observability

    Are you building microservices? Do you struggle with observability and with capturing telemetry data between distributed services? This article shows how to quickly and easily introduce OpenTelemetry into a distributed system built on Java with Quarkus. This combination allows you to visualize the interactions between all the microservices within an overall system. The article introduces the official Quarkus sample application, Quarkus Superheroes, deploys it on the free Developer Sandbox for Red Hat OpenShift, and demonstrates how to collect and visualize telemetry data in order to observe microservices' behavior.

today's leftovers