Universal Base Images (UBI)

Use Node.js 14 on Red Hat OpenShift

Use Node.js 14 on Red Hat OpenShift

On April 21st, Node.js released its latest major version with Node.js 14. Because this is an even-numbered release, it will become a Long Term Support (LTS) release in October 2020. This release brings a host of improvements and features, such as improved diagnostics, a V8 upgrade, an experimental Async Local Storage API, hardened the streams APIs, and more.

While Red Hat will release a Universal Base Image (UBI) for Node.js 14 in the coming months for Red Hat OpenShift and Red Hat Enterprise Linux, this article helps you get started today. If you’re interested in more about Node.js 14’s improvements and new features, check out the article listed at the end.

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Red Hat Universal Base Images for Docker users

Red Hat Universal Base Images for Docker users

Red Hat Universal Base Images (UBIs) allow developers using Docker on Windows and Mac platforms to tap into the benefits of the large Red Hat ecosystem. This article demonstrates how to use Red Hat Universal Base Images with Docker from a non-Red Hat system, such as a Windows or Mac workstation.

Red Hat Enterprise Linux and Docker

When Red Hat Enterprise Linux (RHEL) 8 was released almost a year ago, and it came with lots of new features related to containers. The biggest ones were the new container tools (Podman, Buildah, and skopeo) and the new Red Hat Universal Base Images. There was also confusion because RHEL 8 dropped support for the Docker toolset. Some developers thought that they could not work with Docker anymore, and had to either migrate to a Red Hat-ecosystem Linux system such as CentOS or stay away from Red Hat customers.

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Building freely distributed containers with Podman and Red Hat UBI

Building freely distributed containers with Podman and Red Hat UBI

DevNation tech talks are hosted by the Red Hat technologists who create our products. These sessions include real solutions and code and sample projects to help you get started. In this talk, you’ll learn about building containers with Podman and Red Hat Universal Base Image (UBI) from Scott McCarty and Burr Sutter.

We will cover how to build and run containers based on UBI using just your regular user account—no daemon, no root, no fuss. Finally, we will order the de-resolution of all of our containers with a really cool command. After this talk, you will have new tools at the ready to help you find, run, build, and share container images.

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Verifying signatures of Red Hat container images

Verifying signatures of Red Hat container images

Security-conscious organizations are accustomed to using digital signatures to validate application content from the Internet. A common example is RPM package signing. Red Hat Enterprise Linux (RHEL) validates signatures of RPM packages by default.

In the container world, a similar paradigm should be adhered to. In fact, all container images from Red Hat have been digitally signed and have been for several years. Many users are not aware of this because early container tooling was not designed to support digital signatures.

In this article, I’ll demonstrate how to configure a container engine to validate signatures of container images from the Red Hat registries for increased security of your containerized applications.

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How to reduce Red Hat Fuse image size

How to reduce Red Hat Fuse image size

Red Hat Fuse is a leading integration platform, which is capable of solving any given problem with simple enterprise integration patterns (EIP).  Over time, Red Hat Fuse has evolved to cater to a wide range of infrastructure needs.

For more information on each of these, check out the Red Hat Fuse documentation. The Fuse on Red Hat OpenShift flavor uses a Fuse image that has runtime components packaged inside a Linux container image.  This article will discuss how to reduce the size of the Fuse image. The same principle can be used for other images.

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What is Red Hat Universal Base Image?

What is Red Hat Universal Base Image?

Back in May, we launched the Red Hat Universal Base Image (UBI), targeted at developers building containerized applications for the cloud. Since then, we have published an extensive FAQ covering topics ranging from how often UBI is updated, to how the end user license agreement (EULA) allows you to redistribute applications built on it. These are all great fundamental topics to cover, but people still seem to have a lot of questions around what UBI is and what it isn’t.

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Python wheels, AI/ML, and ABI compatibility

Python wheels, AI/ML, and ABI compatibility

Python has become a popular programming language in the AI/ML world. Projects like TensorFlow and PyTorch have Python bindings as the primary interface used by data scientists to write machine learning code. However, distributing AI/ML-related Python packages and ensuring application binary interface (ABI) compatibility between various Python packages and system libraries presents a unique set of challenges.

The manylinux standard (e.g., manylinux2014) for Python wheels provides a practical solution to these challenges, but it also introduces new challenges that the Python community and developers need to consider. Before we delve into these additional challenges, we’ll briefly look at the Python ecosystem for packaging and distribution.

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Using Red Hat OpenShift image streams with Kubernetes deployments

Using Red Hat OpenShift image streams with Kubernetes deployments

This article demonstrates an application update scenario which leverages Red Hat OpenShift image streams together with standard Kubernetes native resources. It also shows how image streams automatically redeploy application pods after an update to their container image.

Best of all, Kubernetes resources enhanced with OpenShift image streams are still compatible with standard Kubernetes clusters. This fact enables the use of the same resource definitions to support multiple Kubernetes distributions, and at the same time take advantage of features unique to OpenShift.

At the end of this article, we present a few considerations around using image IDs and image name tags to manage your ability to roll back to previous versions of an application.

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Develop with Node.js in a container on Red Hat Enterprise Linux

Develop with Node.js in a container on Red Hat Enterprise Linux

In my previous article, Run Red Hat Enterprise Linux 8 in a container on RHEL 7, I showed how to start developing with the latest versions of languages, databases, and web servers available with Red Hat Enterprise Linux 8, even if you are still running RHEL 7. In this article, I’ll build on that base to show how to get started with Node using the current RHEL 8 application stream versions of Node.js and Redis 5.

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