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Speed up VM create with work seeds

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Beat VM create wall time without changing VM semantics.

Generate a work-seed ext4 sidecar during image builds and rootfs rebuilds, then clone and resize that seed for each new VM instead of rebuilding /root from scratch. Plumb the new seed artifact through config, runtime metadata, store state, runtime-bundle defaults, doctor checks, and default-image reconciliation so older images still fall back cleanly.

Add a daemon TAP pool to keep idle bridge-attached devices warm, expose stage timing in lifecycle logs, add a create/SSH benchmark script plus Make target, and teach verify.sh that tap-pool-* devices are reusable capacity rather than cleanup leaks.

Validated with go test ./..., make build, ./verify.sh, and make bench-create ARGS="--runs 2".
This commit is contained in:
Thales Maciel 2026-03-18 21:22:12 -03:00
parent a14a80fd6b
commit c8d9a122f9
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GPG key ID: 33112E6833C34679
24 changed files with 695 additions and 44 deletions
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internal/store/store_test.go
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@ -340,6 +340,7 @@ func sampleImage(name string) model.Image {
Managed: true,
ArtifactDir: "/artifacts/" + name,
RootfsPath: "/images/" + name + ".ext4",
WorkSeedPath: "/images/" + name + ".work-seed.ext4",
KernelPath: "/kernels/" + name,
InitrdPath: "/initrd/" + name,
ModulesDir: "/modules/" + name,