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7-9 October, 2026
Prague, Czechia
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Friday October 9, 2026 14:00 - 14:40 CEST
When a CI/CD pipeline runs each step as a separate Kubernetes Pod, those Pods need a way to pass data to one another. Tekton chose the obvious Kubernetes-native answer: a shared persistent volume. Clone code in step one, build it in step two, both read from the same disk. Simple.

It wasn't. Shared volumes meant pinning Pods to the same node, which broke autoscaling. Users hit storage limits, leaked volumes after failures, and spent more time debugging infrastructure than building pipelines. Each fix created new edge cases.

Then a different question: what if steps didn't share a disk at all? What if each step uploaded what it produced, and the next downloaded and verified it, with cryptographic hashes at every handoff? That's Trusted Artifacts. The shared volume disappears, and in its place you get a verifiable chain of trust: every handoff is hashed, signed, and traceable. A storage problem became a security feature.

This talk traces that journey: the design that seemed right, the years of workarounds, and the moment the team stopped fixing the plumbing and rethought the architecture. It's for anyone who's wondered whether to keep patching a leaky abstraction or tear it out.
Speakers
avatar for Vincent Demeester

Vincent Demeester

Senior Principal Software Engineer, Red Hat
I'm a french developer ๐Ÿป, Gopher ๐Ÿน, sysadmin ๐Ÿบ, factotum ๐Ÿฆ, free-software fan ๐Ÿ‘ผ and unicode lover ๐Ÿธ. I'm working at Red Hat ๐ŸŽฉ as a senior principal software engineer, previously at Docker ๐Ÿณ and Zenika ๐Ÿฏ. I am a maintainer of the docker project (moby/moby... Read More →
Friday October 9, 2026 14:00 - 14:40 CEST
Club E (Floor 1)

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