What is the problem you're trying to solve

Our existing CI infrastructure doesn't have ppc64 (PowerPC). Due to that we have/had issues on the architecture;

• ppc64 - Change disk size value in devmapper test #6627
• Update golang.org/x/sys to add linux/ppc support #5436
• tests fail on ppc64le #3005

We are currently reactive regarding this architecture.

Describe the solution you'd like

Continuously test containerd in ppc64. Apparently Oregon State University has https://powerci.osuosl.org/ which hosts some other CNCF projects such as Kubernetes and Envoy.

Once we are confident about the quality, we could have release binaries. There is #6516 already.

Additional context

No response