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IBM/Red Hat/Fedora: Flatpak, Fedora Women’s Day and More

Submitted by Roy Schestowitz on Thursday 25th of March 2021 02:42:49 PM Filed under
Red Hat
  • Avoiding common mistakes in modernizing legacy applications

    Recently, I worked with a customer in the courier industry whose core logistics scheduling application suffered from reliability, performance, and scalability issues. While I addressed the immediate problems, it was clear that the 20 years of patchwork fixes, enhancements, and technical debt accumulated were the root cause.
    The legacy architecture consisted of four Red Hat JBoss Enterprise Application Platform servers, each with an instance of the logistics scheduling application deployed and an embedded Artemis broker to handle the messaging. When deploying a new version of the application, each node was brought offline.

    However, each deployment resulted in message loss due to the Artemis broker clustering being non-existent. Each message loss meant a loss in revenue. In addition to the lack of clustering for messaging, the JBoss EAP servers were not load balanced nor clustered, therefore each instance was a single point of failure.

  • Will Thompson: Chromium on Flathub

    Endless OS is based on Debian, but rather than releasing as a bunch of .debs, it is released as an immutable OSTree snapshot, with apps added and removed using Flatpak.

    For many years, we maintained a branch of Chromium as a traditional OS package which was built into the OS itself, and updated it together with our monthly OS releases. This did not match up well with Chromium, which has a new major version every 6 weeks and typically 2–4 patch versions in between. It’s a security-critical component, and those patch versions invariably fix some rather serious vulnerability. In some ways, web browsers are the best possible example of apps that should be updated independently of the OS. (In a nice parallel, it seems that the Chrome OS folks are also working on separating OS updates from browser updates on Chrome OS.)

    Browsers are also the best possible example of apps which should use elaborate sandboxing techniques to limit the impact of security vulnerabilities, and Chromium is indeed a pioneer in this space. Flatpak applies much the same tools to sandbox applications, which ironically made it harder to ship Chromium as a Flatpak: when running in the Flatpak sandbox, it can’t use those same sandboxing APIs provided by the kernel to sandbox itself further.

    Flatpak provides its own API for sandboxed applications to launch new instances of themselves with tighter sandboxing; what’s needed is a way to make Chromium use that…

  • Db2 and Oracle connectors coming to Debezium 1.4 GA

    This article gives an overview of the new Red Hat Integration Debezium connectors and features included in Debezium 1.4’s general availability (GA) release. Developers now have two more options for streaming data to Apache Kafka from their datastores and a supported integration to handle data schemas.

    The GA of the Db2 connector lets developers stream data from Db2. The Oracle connector, now in technical preview, provides an easy way to capture changes from one of the most popular databases. Finally, developers can delegate the Debezium schema through the fully supported integration with Red Hat Integration’s service registry.

  • Integrate Red Hat’s single sign-on technology 7.4 with Red Hat OpenShift

    In this article, you will learn how to integrate Red Hat’s single sign-on technology 7.4 with Red Hat OpenShift 4. For this integration, we’ll use the PostgreSQL database. PostgreSQL requires a persistent storage database provided by an external Network File System (NFS) server partition.

  • Fedora Women’s Day 2020 Reflection

    Fedora Women’s Day 2020 was a celebration of personal growth, community, and love for open source software. Over three days, women and non-binary folks from the Fedora community shared stories about their lives and work in tech. From the challenges and barriers that they encountered to the achievements and success that they earned, we had the privilege of learning about gendered experiences that informed the journey of each of our speakers.

    In previous years, Fedora Women’s Day has been hosted locally by organizers around the world. In response to the pressures of COVID-19, Fedora Women’s Day went virtual this year. At a time where we can all benefit from a little community, this move created space for Fedorans and open source users everywhere to come together to learn, network, and be inspired. For many of the attendees, this was their first Fedora Women’s Day.

    The event was hosted on Hopin.com following the success of Fedora Nest. We had 67 attendees and 24 speakers. Event organizer Marie Nordin did a fantastic job curating the speaker list and breaking it up with social activities. We were treated to fun events such as “Cake with FCAIC”, one on one networking sessions, group discussions, and pictionary.

»

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