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IBM and Red Hat on Containers and OpenShift/CNCF/Kubernetes

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Red Hat
  • Building an End-to-End 5G Cloud Native Network with OpenShift

    In case you missed KubeCon 2019 in San Diego, the CNCF have been very diligent about putting the talks up online. That includes the 5G focused keynote delivered by Azhar Sayeed with Heather Kirksey (Linux Foundation) and Fu Qiao (China Mobile). A short summary of the talk is below, and naturally, the video is above.

  • Cluster Scaling

    In this video we will look at different ways to scale the worker nodes of an IPI based cluster up and down. We will see how easy it is to scale up and scale down a cluster manually. We will understand the architecture concepts behind the scaling. Next we will look at the concepts of auto scaling and create the necessary openshift components, generate workload and autoscale the cluster. We will see how the cluster sizes itself up and down based on the workload.

  • Custom wildcard DNS for OpenShift Container Platform 4.2

    With Red Hat OpenShift Container Platform 4 Red Hat introduced automated cluster provisioning by using openshift-installer binary. Installer based cluster provisioning enables users to deploy fully functioning OpenShift Container Platform cluster by running a single command ( openshift-install create cluster ).

    Cluster parameters (like machine CIDR, cluster network, number of masters and workers or VM size ) can be changed according to user needs by updating the install-config.yaml file before cluster installation.

    When running openshift-installer to provision OpenShift Container Platform 4.2, wildcard DNS is set to *.apps.<cluster name>.<base domain> by default.

    Sometimes user might want to have a different wildcard DNS for applications. In order to change the default wildcard DNS, user needs to generate cluster manifest files and change the domain name. Following procedure explains how this can be achieved.

  • Explore Kubernetes with OpenShift in a workshop near you

    The Kubernetes with OpenShift World Tour is a series of in-person workshops around the globe that help you build the skills you need to quickly modernize your applications. This World Tour provides a hands-on experience and teaches the basics of working with the hybrid-cloud, enterprise container platform Red Hat® OpenShift® on IBM Cloud™. You learn coding skills in the world of containerized, cloud-native development with expert developer advocates, who have deep technical experience building cloud microservices and applications with Red Hat OpenShift.

  • Before you select a container platform, consider these things

    If your organization wants to succeed in today’s fast-paced, digital economy, you need to operate like a software company, and that means rethinking the way you design, build, and use applications.

    Organizations are getting the message, and there’s a growing number of IT teams adopting development tools like containers to create cloud-native apps that work in a consistent manner across private, public, and hybrid clouds.

    But how do you know which container platforms are best for your organization? And how do you make the right decision about container orchestration to manage the lifecycles of your containers so you can operate at scale and accelerate innovation? We break it down in a new, on-demand webinar: "10 important things to consider when selecting a container platform," including the relationship between Linux and containers and the various options available if you want to move to Kubernetes for container orchestration.

Adam Young: oc new-app

  • Adam Young: oc new-app

    The tools you use should help you grow from newbie to power user. OpenShift’s command line is one such tool. When getting started with Kubernetes development, the new-app option to the oc command line can help movbe you along the spectrum.

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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