HPC containers at scale using Podman: HPC containers at scale using Podman lastephey Fri, 01/13/2023 – 03:00 This article describes recent work done at NERSC in collaboration with Red Hat to modify Podman (the pod manager tool) to run at a large scale, a key requirement for high-performance computing (HPC). Podman is an open source …
Use OCI containers to run WebAssembly workloads: Use OCI containers to run WebAssembly workloads Aditya R Wed, 10/05/2022 – 03:00 WebAssembly (also referred to as Wasm) has gained popularity as a portable binary instruction format with an embeddable and isolated execution environment for client and server applications. Think of WebAssembly as a small, fast, efficient, …
A hands-on guide to images and containers for developers: A hands-on guide to images and containers for developers Evan “Hippy” Slatis Mon, 05/23/2022 – 03:00 Register or Login to like Register or Login to like Containers and Open Container Initiative (OCI) images are important open source application packaging and delivery technologies made popular by projects …
Experiment with containers and pods on your own computer: Experiment with containers and pods on your own computer Seth Kenlon Thu, 05/05/2022 – 03:00 Register or Login to like Register or Login to like In the TV show Battlestar Galactica, the titular mega-ship didn’t actually do a whole lot. It served as a stalwart haven …
What's new with Java 17 and containers?: Container platforms and edge computing continue to grow, powering major networks and applications across the globe, and Java technologies have evolved new features and improved performance to match steps with modern infrastructure. Java 17 (OpenJDK 17) was released recently (September 2021) with the following major features: read more: …
3 steps to start running containers today: Whether you’re interested in them as part of your job, for future job opportunities, or just out of interest in new technology, containers can seem pretty overwhelming to even an experienced systems administrator. So how do you actually get started with containers? And what’s the path from containers …
5 steps to migrate your application to containers: Generally, you consider it a good thing when people want to use your application. However, when the application runs on a server, there’s a cost for popularity. With users come increased demands on resources, and at some point, you may find that you need to scale your …
Run containers on Linux without sudo in Podman: Containers are an important part of modern computing, and as the infrastructure around containers evolves, new and better tools have started to surface. It used to be that you could run containers with just LXC, and then Docker gained popularity, and things started getting more complex. Eventually, …
What you need to know about containers for Python: Python is a popular language for many applications. Those that run as backend services, now in the 2020s, are often run inside containers. For that to work, though, you have to build a container. Often, with microservice architectures, it makes sense to build a “root” base …
Run containers on your Mac with Lima: Running containers on your Mac can be a challenge. After all, containers are based on Linux-specific technologies like cgroups and namespaces. Luckily, macOS has a built-in hypervisor, allowing virtual machines (VMs) on the Mac. The hypervisor is a low-level kernel feature, not a user-facing one. read more: Opensource.com …
Reusable containers aren’t always better for the environment than disposable ones – new research: The environmental footprint of reusable containers may not be as light as we think. Marco Verch/Flickr, CC BY-SA We are facing a waste crisis, with landfills across the world at full capacity and mountains of “recycled” waste dumped in developing countries. …
4 Linux technologies fundamental to containers: In previous articles, I have written about container images and runtimes. In this article, I look at how containers are made possible by a foundation of some special Linux technologies, including namespaces and control groups. read more: Opensource.com nivedv Supporting Open Source. Have you tried: Diving with Sharks?
Use VS Code to develop in containers: Coding and testing inconsistencies are a risk when you have multiple developers with different development environments working on a project. Visual Studio Code (VS Code) is an integrated development environment (IDE) that can help minimize these issues. It can be combined with containers to provide separate development environments …
How I build my personal website using containers with a Makefile: The make utility and its related Makefile have been used to build software for a long time. The Makefile defines a set of commands to run, and the make utility runs them. It is similar to a Dockerfile or Containerfile—a set of commands used …
What happens when you terminate Kubernetes containers on purpose?: In this series celebrating Kubernetes’ 11th birthday, I’ve introduced some great tools for chaos engineering. In the first article, I explained what chaos engineering is, and in the second, I demonstrated how to get your system’s steady state so that you can compare it against a …
Manage containers on Raspberry Pi with this open source tool: Containers became widely popular because of Docker on Linux, but there are much earlier implementations, including the jail system on FreeBSD. A container is called a “jail” in FreeBSD terminology. The jail system was first released in FreeBSD 4.0 way back in 2000, and it …
Secure your containers with SELinux: When things aren’t working correctly in your Linux environment, the easiest thing to do is disable Security-Enhanced Linux (SELinux). Things suddenly begin to work, and you forget about it—but this is a common pitfall that means you’ve lost a very powerful security tool. read more: Opensource.com mcalizo Supporting Open Source. …
Ranked: the environmental impact of five different soft drink containers: AndriiKoval/Shutterstock People are increasingly aware of the harm plastic waste causes to wildlife, and many would avoid buying single-use plastics if they could help it. But are the alternatives to plastic much better? Let’s look at one example – fizzy drinks. You might assume that …