Most days, I don’t have any good ideas. I only have bad ideas. But, I’ve become pretty good at stack ranking my bad ideas into good, better, and best. In this article, I’m going to run through a bunch of the best bad ideas that I had using the new Podman 2.0 REST API. I’ve
Updated 06/02/2020 Understanding Container Images To fully understand how to compare container base images, we must understand the bits inside of them. There are two major parts of an operating system – the kernel and the user space. The kernel is a special program executed directly on the hardware or virtual machine – it
Background For years, I floundered around with moving my own blog, ticket system and wiki into containers. Literally, ticket #627: Migrate Crunchtools to Containers has been open in Request Tracker since March 11th, 2017. It’s embarrassing to admit given how deeply I have been involved with containers at Red Hat. Since the early days of
Continue Reading “A Hacker’s Guide to Moving Linux Services into Containers”
Let’s dig into these three concepts a bit deeper: Portability Since the OCI standard governs the images specification, a container image can be created with Podman, pushed to almost any container registry, shared with the world, and consumed by almost any container engine including Docker, RKT, CRI-O, containerd and, of course, other Podman instances. Standardizing
Perhaps you’ve been charged with developing a container-based application infrastructure? If so, you most likely understand the value that containers can provide to your developers, architects, and operations team. In fact, you’ve likely been reading up on containers and are excited about exploring the technology in more detail. However, before diving head-first into a discussion
Many folks who do container development have run Alpine container images. You might have run Fedora, Red Hat Enterprise Linux (RHEL), CentOS, Debian, and Ubuntu images as well. If you are adventurous, you may have even run Arch, Gentoo, or dare I say, really old container images – like, RHEL 5 old. If you have some
Continue Reading “The Limits of Compatibility and Supportability with Containers”
The Red Hat Universal Base Image (UBI) has an end user license agreement which allows partners, customers and community members to deploy it anywhere, but it takes a lot more than a license to create a container base image that’s suitable for your enterprise applications. In part, suitability for enterprise deployments comes from the compatibility guarantees of
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Background I have used Linode for about 10 years now because the service and price are great. They are one of the most automated cloud providers and they invest in tools to do things like resizing existing VMs. It’s super useful for lab environments and experiments. As such, I wanted to use Linode for my
This is a links article that I plan on keeping up to date over the coming months as we create more and more content on Red Hat Universal Base Image. This should be a one stop shop for understanding how to use it. What/Why Introducing the Red Hat Universal Base Image (UBI) – Scott McCarty
Continue Reading “Everything You Need to Know About Red Hat Universal Base Image”
So, you’re looking for the Dockerfile used to create the Red Hat Universal Base Image (UBI)? Since it’s release this has become a very popular question. The first time somebody asked me, I literally froze. It made no sense to me and for a split second I even second guessed my own knowledge of how
Continue Reading “Where’s The Red Hat Universal Base Image Dockerfile?”