User Story

As an OpenShift administrator, I want to perform cluster upgrades (both z-stream and y-stream) on VMware Cloud Foundation 9.0 so that I can keep my clusters current while maintaining platform stability.

Description

Validate that OpenShift cluster upgrades work correctly on VCF 9.0, ensuring customers can maintain their clusters through standard upgrade procedures.

Acceptance Criteria

Z-stream Upgrade Validation

• [ ] Z-stream upgrades complete successfully on VCF 9.0
• [ ] All cluster components upgrade without VCF-specific issues
• [ ] Node reboot cycles complete successfully during upgrades
• [ ] Storage and networking remain stable through z-stream upgrades
• [ ] Performance characteristics maintained post-upgrade

Y-stream Upgrade Validation

• [ ] Y-stream upgrades complete successfully on VCF 9.0
• [ ] Major version transitions work correctly
• [ ] All operators upgrade successfully on VCF 9.0
• [ ] Feature migrations work properly during y-stream upgrades
• [ ] Rollback procedures function if needed

Upgrade Process Testing

• [ ] Machine Config Pool updates work correctly
• [ ] Control plane upgrades complete without issues
• [ ] Worker node upgrades proceed smoothly
• [ ] etcd cluster maintains consistency through upgrades
• [ ] Storage persistence maintained through upgrade process

Post-upgrade Validation

• [ ] All cluster functionality works post-upgrade
• [ ] Performance benchmarks pass after upgrades
• [ ] New features function correctly on VCF 9.0
• [ ] Existing workloads continue operating normally
• [ ] Monitoring and alerting remain functional

Definition of Done

• Both z-stream and y-stream upgrades validated on VCF 9.0
• Upgrade procedures documented for VCF 9.0
• QE test coverage includes upgrade scenarios
• Performance impact of upgrades assessed and documented