Building containerized applications

Learn how containers and Kubernetes have changed development process and development tools.  

Red Hat’s lightweight, open standards-based container toolkit is now fully supported and included with Red Hat Enterprise Linux 8. Built with enterprise IT security needs in mind, Buildah (container building), Podman (running containers), and Skopeo (sharing/finding containers) help developers find, run, build, and share containerized applications more quickly and efficiently, thanks to the distributed and daemonless nature of the tools. 

What are Red Hat's tools for containers?

Linux containers are ideal for deploying microservices-based, cloud-native applications. Red Hat Enterprise Linux 8 contains and fully supports Red Hat’s lightweight, open standards-based container toolkit. It also provides several new features to simplify and improve container development, management, and security.

 

Buildah

Buildah

Buildah allows you to build and modify containers without any daemon or docker. It preserves your existing dockerfile workflow while allowing detailed control over image layers, content, and commits. Buildah also minimizes container image size by using tools from the container host rather than adding them to the container image.

Podman

Podman

Podman is a complete, daemonless container engine for running, managing, and debugging OCI-compliant containers and pods. It lets you manage containers without the daemon dependency and is docker command-line interface (CLI) compatible. Podman also provides improved integration with systemd. With Podman, you can easily find, build, run, and share containers. Switching from Docker to Podman is easy and intuitive—two commands are all you need.

Skopeo

Skopeo

Red Hat Enterprise Linux 8 also includes Skopeo, a new, comprehensive tool and library for inspecting, signing, and transferring container images. This advanced container sharing allows you to inspect, verify, and sign image manifests. Move container images between registries. Skopeo uses the same code-base library used by Buildah, Podman, and CRI-O, a lightweight container engine for Kubernetes.

Podman guide for containers cover image

Podman guide for containers

Podman is one of the next-generation container tools (along with Buildah and Skopeo) included in Red Hat Enterprise Linux 7.6 and later. This cheat sheet covers all of the commands that focus on images, containers, and container resources.

 

This cheat sheet explains how to:

  • Find, build, and remove images.
  • Run containers on images.
  • Manage container processes and resources.
  • Work with a container's filesystem.

 

Download now

Use enterprise-grade containers to develop in a hybrid world

Part of the beauty of Linux containers is that they are hybrid by design. That means you can code locally, test in the cloud, and deploy anywhere that Linux containers will run. Most Red Hat developer components are available with dockerfiles, or distributed as Linux container images on Red Hat Enterprise Linux (for local dev) and Red Hat OpenShift Container Platform (local, on-line, or public cloud dev). This means that wherever you develop, test, and deploy, you’re using the same development stacks, on-premise to virtual to cloud. To help you get where you’re going faster, the Red Hat container catalog gives you access to certified, trusted and secure application containers.

 

Try a container

New Container articles

Featured image for: Learn Quarkus faster with quick starts in the Developer Sandbox for Red Hat OpenShift.
Article

RESTEasy Reactive and more in Quarkus 2.0

July 1, 2021

Quarkus 2.0 includes continuous testing, the new Dev UI, and RESTEasy Reactive. Read about these new features and plans for the Red Hat build of Quarkus.

Featured image for Red Hat JBoss Enterprise Application Platform.
Article

Integrate Red Hat Data Grid and Red Hat JBoss Enterprise Application Platform on Red Hat OpenShift

June 29, 2021

A quick guide to configuring Red Hat Data Grid as an external cache container for HTTP sessions in Red Hat JBoss Enterprise Application Platform on Red Hat OpenShift.

Featured image for: Kubernetes configuration patterns, Part 2: Patterns for Kubernetes controllers.
Article

Kubernetes Operators 101, Part 2: How operators work

Bobby Woolf
June 22, 2021

Want to know more about Kubernetes Operators and how they extend Kubernetes? Explore the structure, workload deployment, and reconciliation of operators.

Featured image for: Perform a kaniko build on a Red Hat OpenShift cluster and push the image to a registry.
Article

Perform a kaniko build on a Red Hat OpenShift cluster and push the image to a registry

June 18, 2021

Building containers and images typically requires root access and permissions, but you can get around that by building your container images on Red Hat OpenShift with kaniko.

Featured image for Kubernetes + OpenShift
Article

Shipwright: A framework for building container images on Kubernetes

June 17, 2021

Get an introduction to Shipwright, an open, extensible framework that makes it simple to securely build container images on a Kubernetes cluster.

Featured image for: Updating to newer releases of Red Hat OpenShift 4.
Article

Deploy self-hosted GitHub Actions runners for Red Hat OpenShift

June 16, 2021

Find out how you can run workflow jobs in containers on Red Hat OpenShift using GitHub Actions self-hosted runners.

More Containers articles

Latest Comments

Waiting for Disqus…
hero-logo

Easily deploy your code to multiple servers with Red Hat Ansible Automation Platform

Whether you’re a small team of developers looking for an easy way to scale your application across multiple servers, or an established enterprise team wanting a better way to collaborate with operations, Ansible Automation Platform helps you quickly scale up and manage your stack.

Revisit AnsibleFest 2020