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You can now pull images from a mirrored registry by using image tags in addition to digest specifications. To accomplish this change, the ImageContentSourcePolicy (ICSP) object is deprecated. You now use an ImageDigestMirrorSet (IDMS) object to pull images by using digest specifications or an ImageTagMirrorSet (ITMS) object to pull images by using image tags. Organizations concerned with security will be pleased to know they can now use AES-GCM ciphers to encrypt etcd in order to meet compliance requirements for cryptographic standards.

(formerly Red Hat CodeReady Containers)

It’s also possible to use OpenShift to manage a containerized instance of OpenStack’s control plane, though the workloads remain fully in OpenStack. As container technology evolves, these two solutions offer unparalleled flexibility for delivering continued ROI from existing instances while positioning businesses for future growth with fast iteration and quicker time to market. Businesses typically look to OpenShift when they want to build new, cloud-native apps as microservices while managing or modernizing existing apps. OpenShift is favored for this flexibility, which offers the same user experience whether you’re deploying to an on-premise data center, a public cloud, or edge devices.

What is Red Hat OpenShift

A node has a lightweight, secure operating system based on Red Hat Enterprise Linux (RHEL), known as Red Hat Enterprise Linux CoreOS (RHCOS). For example, a front-end web service connects to a database instance by communicating with its service. OpenShift Container Platform automatically injects service information into running openshift consulting containers for ease of discovery. The Kubernetes replica set and the OpenShift Container Platform replication controller are both available. The job of this component is to ensure the specified number of pod replicas are running at all times. If pods exit or are deleted, the replica set or replication controller starts more.


The NUMA Resources Operator deploys a NUMA-aware secondary scheduler that makes scheduling decisions for workloads based on a complete picture of available NUMA zones in clusters. This enhanced NUMA-aware scheduling makes sure that latency-sensitive workloads are processed in a single NUMA zone for maximum efficiency and performance. This update adds fine-tuning of API polling for NUMA resource reports, and provides configuration options at the node group level for the node topology exporter. For Azure, new OpenShift 4.13 on Azure clusters have a control plane machine set that is active by default. For existing OpenShift on Azure clusters that upgrade to version 4.13, an inactive custom resource (CR) is generated for the cluster and can be activated after you verify the CR values are correct for your control plane machines. Refer to Getting started with the Control Plane Machine Set Operator for additional information.

What is Red Hat OpenShift

If more pods are running than needed, the replica set deletes as many as necessary to match the specified number of replicas. In OpenShift Container Platform, pods replace individual application https://www.globalcloudteam.com/ containers as the smallest deployable unit. Developers and DevOps have all of the content needed for their Kubernetes environments with multicluster and multi-region content management.

OpenShift and Kubernetes learning

Coordinate microservices in a service mesh with the powerful monitoring and management tool, Istio. Provides a collection of plugins and libraries for building container images using Docker, JIB, or S2I build strategies. This is especially useful for troubleshooting when the kubelet is down and the the node isn’t reachable via ssh or the OpenShift API. To access the RHCOS system console, you set the “core” user account password via MachineConfig. In OpenShift 4.13, the cluster administrator uses the RunOnceDuration Operator to force a limit on the time those run-once pods can be active.

We’re now a very different organization, with a modern mindset, and we credit Red Hat as a big contributor to that success. A fully supported sandbox in which to rapidly develop, train, and test machine learning (ML) models. Launch a command line terminal on the OpenShift cluster to manage authorized Kubernetes primitives. Provides support for Quarkus and MicroProfile development and Qute support for the Qute template engine. Provides support for creating and editing XML documents, based on the LemMinX XML Language Server.

Reinvent how your teams develop and deploy.

A full set of operations and developer services and tools that includes everything in the Red Hat OpenShift Kubernetes Engine plus additional features and services. Streamline workflows to get to production faster, including built-in Jenkins pipelines and our source-to-image technology to go straight from application code to container. Red Hat OpenShift Service Mesh gives you a uniform way to connect, manage, and observe microservices-based applications. We have multicluster management capabilities in Red Hat Advanced Cluster Management for Kubernetes (ACM). The StackRox acquisition gave us a complete Kubernetes-native solution for multi-cluster security and compliance, and it makes sense to bring these together for customers that want to scale OpenShift. With the automated cluster deployment capabilities in OpenShift 4, it’s become easier to create new clusters.

Red Hat’s product development cycle has always been rooted in open source and the communities that help to steer Red Hat’s products’ direction. Like Fedora is the upstream project for Red Hat Enterprise Linux, the projects listed here are the upstream versions of products that make up the Red Hat Ansible Automation Platform. Get started in the developer sandbox, launch a trial cluster of Red Hat OpenShift Dedicated, or set up a trial of self-managed Red Hat OpenShift Container Platform. Learn how Red Hat OpenShift helps modernize existing applications and accelerate new application development. Red Hat OpenShift Serverless extends Kubernetes in order to deploy and manage serverless workloads. The trial includes membership in the Red Hat Developer program, which gives you access to evaluation software from Red Hat, tutorials, labs, cheat sheets, e-books, and more.

About OCI’s Distributed Cloud

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge. Following closely on the heels of OpenShift 4.13 is Red Hat Advanced Cluster Management for Kubernetes (RHACM) 2.8. Key highlights of RHACM 2.8 include PolicySet for Red Hat OpenShift Platform Plus and Regional stateful application replication with Red Hat OpenShift Data Foundation (ODF) 4.13.

  • The job of this component is to ensure the specified number of pod replicas are running at all times.
  • OpenShift Data Foundation provides accessible data and support for all Red Hat OpenShift apps.
  • Use the browser-based web console to administer, visualize, browse, and manage OpenShift resources.
  • It is used to manage storage, networking, bare-metal, and computing infrastructure, as well as VMs running applications that require guest operating systems.
  • OpenShift registry is also integrated into the cluster’s authentication and authorization system, enabling developers to have fine-grained control over container images.
  • A cloud-native application platform with everything you need to manage your development life cycle securely, including standardized workflows, support for multiple environments, continuous integration, and release management.
  • Red Hat’s commitment to and investment in OpenStack remains strong, we are the leading contributor in commits and have more than 250 engineers continuing to lead innovation at both the project and product levels.

It defines the scope of resources, allows project administrators and collaborators to manage resources, and restricts and tracks the user’s resources with quotas and limits. OpenShift Container Platform schedules and runs all containers in a pod on the same node. They interact externally and also with another inside the OpenShift Container Platform environment. It consists of a colocated group of containers with shared resources such as volumes and IP addresses. OpenShift Service Binding Operator makes it easy for developers to connect their applications to backing services like REST APIs, databases, event buses, and others, providing a consistent and predictable experience.

OpenShift Data Foundation

Red Hat OpenShift Data Science is a cloud-based service that provides a platform for data scientists and developers to build intelligent applications. Data scientists can build artificial intelligence/machine learning (AI/ML) models with Jupyter notebooks, TensorFlow, and PyTorch support. Developers can port these AI/ML models to other platforms and deploy them in production, on containers, and in hybrid cloud and edge environments. It’s a new edition of Red Hat OpenShift that gives customers a single hybrid cloud platform for innovation without limitation, allowing enterprises to build, deploy, run and manage intelligent applications more securely at scale. Multiple layers of Kubernetes-native security, manageability and automation work across infrastructures to provide consistency throughout the application lifecycle. Red Hat OpenStack Platform 17.1 is the last version of the product to use the classic form-factor of the control plane, which can be run either on bare metal or virtualized, with management provided by the OpenStack Director.

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