RedHat Developer

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Top 10 videos from Red Hat Developer

Podman: A Linux tool for working with containers and pods Get started with Podman, an open source, Linux-based tool that builds Docker-compatible container images.

Easily secure your Spring Boot applications with Keycloak Discover how to deploy and configure a Keycloak server and then secure a Spring Boot application.

Learn how to move your existing Java app to Kubernetes—without changing a single line of code Using the free Developer Sandbox for Red Hat OpenShift, we demo how you can take your existing source code or create a new application and easily deploy and manage them as containers.

KBE Insider (E3): Luke Hinds We talk to Luke Hinds, Security Lead for Office of CTO, Red Hat, about his work on the Kubernetes Security Response Team, Sigstore, and the Kubernetes HackerOne Bug Bounty Program.

Local OpenShift environment on Windows with Red Hat CodeReady Containers Brian Tannous walks through getting a local OpenShift environment installed on Windows using Red Hat CodeReady Containers.

Securing apps and services with Keycloak authentication | DevNation Tech Talk See how to easily secure all of your applications and services, regardless of how they’re implemented and hosted, with Keycloak—all with little-to-no code required.

A deep dive into Keycloak | DevNation Tech Talk This tutorial introduces Keycloak, an open source identity and access management solution for modern applications and services.

Secure Spring Boot Microservices with Keycloak | DevNation Tech Talk In this interactive, live-coding session, you’ll explore the Spring Boot adapter provided by Keycloak.

KBE Insider (E5): Savitha Raghunathan We talk to Savitha Raghunathan, Senior Software Engineer at Red Hat, about her work and experience as an open source contributor within the Kubernetes ecosystem.

Apache Kafka + Debezium | DevNation Tech Talk This tutorial explores how to use Apache Kafka and Debezium. Learn how to use change data capture for reliable microservices integration.
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Working around Docker’s download limit on RedHat OpenShift

Taken from “How to work around Docker’s new download rate limit on Red Hat OpenShift” from RedHat Developer.

Docker recently changed its policy for downloading images as an anonymous user. The company now has a limit of 100 downloads every six hours from a single IP address.

If you are using the OpenShift Developer Sandbox to experiment with a free OpenShift cluster, you might encounter the error message shown in Figure 1.

All you have to do to avoid Docker’s new rate-limit error is authenticate to your Docker Hub account. After you’ve authenticated to the account, you won’t be pulling the image as an anonymous user but as an authenticated user. The image download will count against your personal limit of 200 downloads per six hours instead of the 100 downloads shared across all anonymous cluster users.

For the complete article, do take a look at “How to work around Docker’s new download rate limit on Red Hat OpenShift” from RedHat Developer.