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DO326

Red Hat Openshift Migration Lab

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Overview

Course description

Migrate application workloads, including its Kubernetes resources, data, and container images, when upgrading from OpenShift 3 to 4 or from OpenShift 4.x to the latest version.

Red Hat Openshift Migration Lab (DO326) is designed for OpenShift professionals migrating workloads from legacy deployments of OpenShift Container Platform running 3.11 onto a 4.6 installation.  Students will gain practical working experience with the Migration Toolkit for Containers (MTC) to leverage in real-world migration scenarios.

Course content summary

  • Assessing OpenShift 3 to OpenShift 4 migration scenarios.
  • Discussion of OpenShift 4 minor version migration scenarios.
  • Deploying the Migration Toolkit for Containers.
  • Migrating Persistent Volumes application data between OpenShift clusters.
  • Migrating application images from the internal registry between OpenShift clusters.
  • Moving Kubernetes manifests application resources between OpenShift clusters.
  • Migrating Kubernetes cluster settings between OpenShift clusters.

Audience for this course

  • Red Hat consultants and partners responsible for customer success and who want to migrate from OpenShift 3 to OpenShift 4.
  • OpenShift professionals responsible for the transition of workloads onto OpenShift 4.

Recommended training

Technology considerations

  • Labs are provided in the Red Hat Training & Certification cloud only. Internet access is required to access the classroom environment.

Outline

Outline for this course

  • Planning an OpenShift 3 to 4 migration
  • Preparing the target cluster for migration
  • Deploying the Migration Toolkit for Containers (MTC)
  • Migrating applications using the MTC
  • Mapping application dependencies and dandling migration issues
  • Automating application migrations using the MTC API and Ansible
  • Reducing downtime during a migration process
  • Red Hat OpenShift 3 to 4 migration lab comprehensive review

Outcomes

Impact on the organization

Successful migration from OpenShift 3 to OpenShift 4 is a critical factor in maintaining continuity for customers with established workloads on legacy OpenShift 3. To preserve continued support and innovation, organizations must ensure a careful and precise transition of applications  using Red Hat’s tools and best practices. In comparison to OpenShift 3, OpenShift 4 brings in sophisticated automation, self-service, governance, and cloud-native features that are based on Kubernetes Operators to enable a wider variety of application modernization and digital transformation efforts.

Impact on the individual 

Learning to apply skills needed to migrate workloads from OpenShift 3 to OpenShift 4 using the Migration Toolkit for Containers will set up students to safely and correctly complete migrations in their organizations.

Recommended next exam or course

Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380)
 
 

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