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feat(deploy/no-envbox-kvm): sketch no-envbox KVM microVM deployment#174

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feat(deploy/no-envbox-kvm): sketch no-envbox KVM microVM deployment#174
f0ssel wants to merge 3 commits into
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f0ssel/no-envbox-kvm-poc

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@f0ssel f0ssel commented Jul 23, 2026

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Exploratory proof-of-concept for replacing the privileged envbox/sysbox wrapper with a KVM-backed microVM booted inside an unprivileged pod that requests /dev/kvm via a device plugin instead of mknod-ing devices under privileged.

Includes a design README, a kvm-device-plugin DaemonSet, an unprivileged workspace pod, a Coder template sketch, and NOTES.md mapping the approach to the existing envbox code paths and the make-or-break tests.

No code is wired into the envbox build; this is a deployment-surface sketch.

Generated by Coder Agents on behalf of @f0ssel.

f0ssel added 3 commits July 23, 2026 21:49
Exploratory proof-of-concept for replacing the privileged envbox/sysbox
wrapper with a KVM-backed microVM booted inside an unprivileged pod that
requests /dev/kvm via a device plugin instead of mknod-ing devices under
privileged.

Includes a design README, a kvm-device-plugin DaemonSet, an unprivileged
workspace pod, a Coder template sketch, and NOTES.md mapping the approach
to the existing envbox code paths and the make-or-break tests.

No code is wired into the envbox build; this is a deployment-surface sketch.

Generated by Coder Agents on behalf of @f0ssel.
Drop the "envbox v2" / epic framing; this is exploratory only.

Generated by Coder Agents on behalf of @f0ssel.
Target cross-pod first-boot warmth, not restart persistence. Add a
node-local pull-through registry mirror (Lever 1) so new pods pull already
-fetched layers from the node, and CSI-mount the inner workspace image
(Lever 2) to reuse the node containerd cache. Drop the persistent
/var/lib/docker framing; guest docker data dir is now ephemeral.

Generated by Coder Agents on behalf of @f0ssel.
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