DO180

Course Description

Deploy, manage, and troubleshoot containerized applications running as Kubernetes workloads in OpenShift clusters.

• Red Hat OpenShift Administration I: Managing Containers and Kubernetes (DO180) prepares OpenShift Cluster Administrators to perform day-to-day management of Kubernetes workloads and collaborate with Developers, DevOps Engineers, System Administrators, and SREs to ensure the availability of application workloads. This course focuses on managing typical end-user applications that are often accessible from a web or mobile UI and represent the majority of cloud native and containerized workloads. Management of applications also includes deployment and updating of their dependencies such as databases, messaging, and authentication systems.
  
  The skills you learn in this course can be applied using all versions of OpenShift, including Red Hat OpenShift on AWS (ROSA), Azure Red Hat OpenShift (ARO), and OpenShift Container Platform.
  
  This course is based on Red Hat^® OpenShift^® 4.12.

Course Content Summary

• Managing OpenShift clusters from the command-line interface and from the web console.
• Troubleshooting network connectivity between applications inside and outside of an OpenShift cluster.
• Connecting Kubernetes workloads to storage for application data.
• Configuring Kubernetes workloads for high availability and reliability.
• Managing updates to container images, settings, and Kubernetes manifests of an application.

Target Audience

• System Administrators and Platform Operators interested in the ongoing management of OpenShift clusters and containerized applications.
• Site Reliability Engineers interested in the ongoing maintenance and troubleshooting of containerized applications on Kubernetes.
• System and Software Architects interested in understanding the features and functionality of an OpenShift cluster.

Recommended training

• Take our free assessment to gauge whether this offering is the best fit for your skills.
• Prerequisite: Red Hat System Administration I (RH124) or equivalent skills managing Linux systems and servers from the Bash shell.
   

Technology considerations

• This course requires internet access to access the cloud-based classroom environment that provides an OpenShift cluster and a remote administrator’s workstation.

Introduction to Kubernetes and OpenShift

Identify the main Kubernetes cluster services and OpenShift platform services and monitor them using the web console.

Kubernetes and OpenShift Command-Line Interfaces and APIs

Access an OpenShift cluster using the command line and query its Kubernetes API resources to assess the health of a cluster.

Run Applications as Containers and Pods

Run and troubleshoot containerized applications as unmanaged Kubernetes pods.

Deploy Managed and Networked Applications on Kubernetes

Deploy applications and expose them to network access from inside and outside of a Kubernetes cluster.

Manage Storage for Application Configuration and Data

Externalize application configurations in Kubernetes resources and provision storage volumes for persistent data files.

Configure Applications for Reliability

Configure applications to work with Kubernetes for high availability and resiliency.

Manage Application Updates

Manage reproducible Application updates and roll backs of code and configurations.

Impact on the Organization

• This course is intended to develop the skills needed to manage Red Hat OpenShift clusters and support containerized applications that are highly available, resilient, and scalable. Red Hat OpenShift is an enterprise-hardened application platform based on Kubernetes that provides a common set of APIs and abstractions that enable application portability across cloud providers and traditional data centers. Red Hat OpenShift adds consistency and portability of operational processes across these environments and can also be deployed as a managed service. An external SRE team shares the responsibility of managing Red Hat OpenShift clusters with a customer’s IT operations team when using a managed OpenShift offering such as Red Hat OpenShift on AWS (ROSA) or Azure Red Hat OpenShift (ARO).

Impact on the Individual

• As a result of attending this course, students will understand the architecture of Red Hat OpenShift clusters and of Kubernetes applications, and will be able to deploy, manage, and troubleshoot applications on OpenShift. Students will also be able to identify and escalate application and infrastructure issues to development teams, operation teams, and IT vendors.

Recommended next course or exam

• Red Hat OpenShift Administration II: Operating a Production Kubernetes Cluster (DO280)
• Red Hat Certified OpenShift Administrator exam (EX280)
• Introduction to Red Hat OpenShift Service on AWS (DO120)
• Introduction to Microsoft Azure Red Hat OpenShift (DO121)