Introduction to Red Hat OpenShift Service on AWS (CS120)

Course code: CS120

Learn how to deploy, access, and perform day-to-day operations to a ROSA cluster.

This course teaches IT operations staff how to deploy a public Red Hat OpenShift Service on AWS (ROSA) cluster for experimentation and to provision projects for development teams to work within. IT operations staff will learn how to perform day-to-day operation of ROSA clusters and support application teams which use that cluster. IT operations staff can then apply the same skills and similar procedures to private ROSA clusters of their organizations.

Impact on the Organization

Red Hat OpenShift Service on AWS (ROSA) is a turnkey application platform that provides a managed Red Hat OpenShift service that runs natively on Amazon Web Services (AWS) to enable organizations to increase operational efficiency, refocus on innovation, and quickly build, deploy, and scale applications
Red Hat OpenShift is the hybrid cloud platform that brings operational consistency to on-premise and cloud environments. Organizations that use ROSA follow the same operational processes as on a self-managed Red Hat OpenShift Container Platform cluster in their on-premise data centers, and deploy the same applications on any OpenShift cluster, whether a managed cluster or a self-managed one

Impact on the Individual

After completing CS120, students can create ROSA clusters. Most day-to-day application and cluster administration tasks are performed the same way across Red Hat OpenShift products, so IT professionals apply the same skills in managing Red Hat OpenShift clusters to both cloud and on-premise environments

540 EUR

653 EUR including VAT

The earliest date from 10.11.2025

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Course dates

Starting date: 10.11.2025

Type: Virtual

Course duration: 2 days

Language: en

Price without VAT: 635 EUR

Starting date: Upon request

Place : Praha

Type: In-person

Course duration: 1 day

Language: en/cz

Price without VAT: 635 EUR

Starting date: Upon request

Type: Virtual

Course duration: 2 days

Language: en/cz

Price without VAT: 635 EUR

Starting date: Upon request

Type: Self-paced

Course duration: 90 days

Language: en

Price without VAT: 540 EUR

	Starting date	Place	Type	Course duration	Language	Price without VAT
	10.11.2025		Virtual	2 days	en	635 EUR	Register

	Upon request	Praha	In-person	1 day	en/cz	635 EUR	Register

	Upon request		Virtual	2 days	en/cz	635 EUR	Register

	Upon request		Self-paced	90 days	en	540 EUR	Register
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Course description

Course Content Summary

Introduction to Managed OpenShift
Identify prerequisites to create and deploy a ROSA cluster
Access a ROSA cluster as an administrator
Configure GitHub authentication
Connect ROSA clusters to Red Hat cloud services
Configure projects with guardrails for application teams
Declarative project provisioning and configuration by using OpenShift GitOps
Perform OpenShift version updates
Clean AWS resources from deleted clusters

Target group

Primary:
- ROSA administrators
- System administrators, platform engineers, cloud engineers, other infrastructure-related IT roles who are responsible for providing and supporting infrastructure for applications deployed on AWS.
Secondary:
- Enterprise architects
- Application and development infrastructure professionals such as site reliability engineers and DevOps engineers.

Course structure

Create Public Red Hat OpenShift Service on AWS (ROSA) Clusters
Create a Red Hat OpenShift Service on AWS (ROSA) cluster that is accessible through the internet
- Introduction to ROSA
  Describe how ROSA clusters fit into the AWS infrastructure, the required tools to create and access ROSA clusters, and the typical deployment patterns for ROSA clusters: public, bring your own Amazon Virtual Private Cloud (VPC), and private link
- Prerequisites for ROSA Cluster Creation
  Describe the required tools and services to create ROSA clusters. Prepare an AWS account and a management workstation to create a ROSA cluster, and verify that an AWS account meets all the prerequisites for creating a ROSA cluster
- Creating a ROSA Cluster
  Create an internet-accessible ROSA cluster
- Accessing a ROSA Cluster as an Administrator
  Create OpenShift cluster administrator credentials to access a managed cluster by using the OpenShift CLI, OpenShift Web Console, and Kubernetes CLI
- Connecting a ROSA Cluster to Red Hat Services
  Connect a managed cluster to Red Hat Cloud Services
Configure Projects for Application Teams
Configure projects for application teams to develop or deploy applications, and grant non-cluster administrators sufficient autonomy for their jobs and to prevent misusing a ROSA cluster and AWS services
- Configuring Identity Providers for ROSA Clusters
  Configure an identity provider for developers to access a ROSA cluster and self-service projects to deploy unprivileged applications
- OpenShift Multi-Tenancy with Projects
  Describe the OpenShift features that enable multi-tenancy
- Configuring Project Self-Service
  Describe the OpenShift features that enable self-service for application teams
Declarative Project Management
Automate project creation and ongoing maintenance by using OpenShift GitOps while preserving the autonomy of non-administrator users over those projects
- GitOps for Kubernetes
  Define the fundamentals of GitOps and its use with Kubernetes clusters and applications. Describe the essential concepts of Argo CD that Red Hat OpenShift GitOps supports
- Automating ROSA Cluster Management with OpenShift GitOps
  Describe the GitOps approach to automating OpenShift cluster management
- Drift Remediation with OpenShift GitOps
  Describe ROSA resource reconciliation with OpenShift GitOps. Describe the OpenShift GitOps approach to remediating cluster state deviation
ROSA Cluster Upgrades
Upgrade ROSA clusters with new OpenShift versions
- OpenShift Updates and Application Availability
  Describe the OpenShift update process and how it affects application availability
- Configuring Scheduled Cluster Upgrades
  Describe the process of scheduling a ROSA cluster upgrade and configuring automated y-stream upgrades
Delete ROSA Clusters
Delete ROSA clusters and ensure that all of its related AWS resources are deleted
- Deleting AWS Resources from Deleted ROSA Clusters
  Describe the process of deleting a ROSA cluster
- Deleting AWS Resources from Deleted ROSA Clusters
  Describe scenarios that require manual deletion of AWS resources that are related to a ROSA cluster after the cluster was deleted

Prerequisites

All students must be knowledgeable about Amazon Web Services (AWS), including operating and managing AWS compute, storage, and network resources
For students who are new to Red Hat OpenShift, it is recommended that you learn the fundamental skills of managing Red Hat OpenShift clusters from the following courses:
- Red Hat OpenShift I: Containers & Kubernetes (DO180)
- Red Hat OpenShift Administration II: Operating a Production Kubernetes Cluster (DO280)
Students with previous experience of managing Kubernetes clusters are advised to take DO180 and DO280 or at least to acquire foundational skills in operating Red Hat OpenShift clusters by using the following free resources from Red Hat:
- Red Hat Developer Sandbox for OpenShift
- OpenShift and Kubernetes learning from Red Hat Developer
- Containers, Kubernetes and Red Hat OpenShift Technical Overview (DO080)

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