What are manifest files in OpenShift?
These files are based on the information that you provide to the installation program directly or through an install-config. yaml file. OpenShift Container Platform uses the manifest files to create pods on the node.
What is Kubernetes manifest?
A Kubernetes manifest describes the resources (e.g., Deployments, Services, Pods, etc.) you want to create, and how you want those resources to run inside a cluster.
What is IPI and UPI?
Terms and Definitions IPI: Installer Provisioned Infrastructure, please see the OpenShift Installation Overview for more details on this term. UPI: User Provisioned Infrastructure, please see the OpenShift Installation Overview for more details on this term.
What is Red Hat OCM?
Red Hat OpenShift Cluster Manager is a managed service where you can install, modify, operate, and upgrade your Red Hat OpenShift clusters. This service allows you to work with all of your organization’s clusters from a single dashboard.
What is DeploymentConfig in Openshift?
A DeploymentConfig or Deployment object, either of which describes the desired state of a particular component of the application as a pod template. DeploymentConfig objects involve one or more replication controllers, which contain a point-in-time record of the state of a deployment as a pod template.
What is manifest YAML?
The manifest. yml file is a YAML based schema definition of how to map external ports, directories, environment variables and various configuration options for your custom image.
How do you write manifest files for Kubernetes?
To create a Kubernetes pod with YAML, you first create an empty file, assign it the necessary access permissions, and then define the necessary key-value pairs. The important ones are the apiVersion, the kind (pod), name, and the containers within the pod.
What is difference between UPI and IPI OpenShift?
IPI is supported in various environments including AWS, Azure, GCE, VMware Vsphere and even Baremetal. IPI is tightly coupled with the infrastructure layer whereas UPI is not and will allow the most customization and work anywhere. Ultimately IPI vs UPI is usually dictated by the requirements.
What is IPI in OpenShift?
Installer-provisioned Infrastructure (IPI) provides a full-stack installation and setup of the Openshift container platform (OCP). It creates Bootstrapping node which will take care deploying the cluster.
What is Rhacm?
Red Hat Advanced Cluster Management for Kubernetes (RHACM) helps organizations further extend and scale the Red Hat OpenShift Container Platform (RHOCP) with enterprise-grade management capabilities across hybrid and multicloud environments.
What are OpenShift clusters?
An OpenShift Cluster is a group of nodes or machines running together. At the highest level of Kubernetes, there exist two kinds of servers, a Master and a Worker node. These servers can be Virtual Machines (VM) or physical servers(Bare metal).
What is difference between OpenShift deployment and DeploymentConfig?
Building on replication controllers, OpenShift Container Platform adds expanded support for the software development and deployment lifecycle with the concept of DeploymentConfig objects. In the simplest case, a DeploymentConfig object creates a new replication controller and lets it start up pods.
