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