C. A. Fillekes
Enabling Linux and K8s on the Mainframe!
Albany, New York, United States
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C. A. Fillekes is an IBM Red Hat partner engineer, actively porting and testing Kubernetes and OpenShift add-ons and features on the s390x architecture to run on the LinuxONE and System Z platforms.
Area of Expertise
Topics
Multi-Arch KubeVirt and CDI
KubeVirt and Containerized Data Importer (CDI) have been ported to ARM and s390x in addition to x86 cluster node architectures. Running these operators on a multi-arch Kubernetes cluster opens up a number of exciting use cases to import, manage, launch and template virtual machines. For example, while only x86 nodes have API access to a certain external commercial VM management platform, by importing a VM through the CDI operator deployed on an x86 node, the VM can be disassembled, templated and re-built as either a VM or a container to run on the s390x or ARM nodes, and tested all in the same K8s cluster. This makes KubeVirt and CDI particularly useful for modernizing complex workloads.
Multi-Arch VM deployment options with KubeVirt + CDI
Now that we have KubeVirt + CDI running and released on x86, ARM and s390x, there are a few multi-arch deployment options we can execute out-of-the-box, and some (e.g. converting VMware VMs to run on the mainframe) requires some additional tools and development. Likewise, there are some options which require no code changes at all, but which provide tremendous benefit to the user. We explore the various options of multi-arch KubeVirt, and consider the options that require the least work/risk and provide are the most benefit -- demonstrations included!
Project Lightning Talk + Maintainer Track + Contribfest: KubeCon + CloudNativeCon Europe 2025 Sessionize Event
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