Containerd: Project Update and Deep Dive
summary
containerd 2.0 lands after an 18‑month effort to remove legacy v1 runtimes, deprecations, and stabilize APIs introduced in 1.7 while adding transfer service, sandbox and array APIs, image verifier plugins, and IGZ decompression support. 2.1 ships next month with FS enhanced reloading (requires Linux 6.12), image volumes and improved userns handling. Release cadence moves to minor releases every six months; LTS branches get named volunteer maintainers and 1.7 is EOL Mar 10 2026. containerd 2.0 stabilizes experimental APIs and drops legacy v1 runtimes 2.1 adds FS reload and image volumes (Linux 6.12) runwasi RC1 benchmarks: runc is ~4x slower; precompiled WASM runs 60 t/s vs 15 t/s NRI and sandbox API are production ready and Kata integration is underway
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chapters (13)
- 0:00Introduction
- 1:06What is containerd
- 2:54Containerd 2.0 recap
- 6:48Containerd 2.1 features
- 10:33Release cadence updates
- 11:58Kubernetes SIG Node
- 13:24Shim layer innovations
- 17:38Maintainer panel
- 21:55Container trends
- 24:43Extensibility future
- 27:13Shim verification
- 29:29Q&A sandbox API
- 31:40Closing
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