- Replace single 'minimal' system template with four well-known distro
base images: minimal-ubuntu (id 0), minimal-alpine (id 1), minimal-arch
(id 2), minimal-fedora (id 3) — all platform-owned, reserved IDs 0–1024
- Add id.IsReservedTemplateID() guard and well-known ID constants
- Seed the four system base templates via a goose migration
- On-disk layout: images/teams/{b36(team)}/{b36(tid)}/rootfs.ext4
- Rebuild scripts (update-minimal-rootfs.sh, build-*.sh) handle all four
- rootfs-from-container.sh: fix usr-merged distro tini install, flatten
IMAGE_NAME slashes for tar path
Snapshotting:
- Allow snapshots from 'paused' state (not just 'running')
- Implement flattenPausedCow for paused sandboxes: re-attach dm-snapshot,
flatten CoW, tear down; distinct dm name to avoid colliding with Resume
- copyMemorySnapshotFiles + linkOrCopyFile: hardlink CH memory artefacts
with sparse-preserving cp --sparse=always fallback across filesystems
- Promote staging dir atomically with rename(2)
- Track origStatus through snapshotInBackground so badge returns to
paused (not running) after paused snapshot
- Expand CleanupOrphanPauseDirs to clean up .stage- prefixes too
Build service:
- Look up all base templates (including system ones) via DB query instead
of hardcoding the minimal template path
- Insert a sandbox DB record for builder sandboxes
- Destroy builder sandbox + mark DB record stopped on finalize
- Default base template to minimal-ubuntu instead of minimal
Chores:
- Remove stale recipe files (code-runner-beta, jupyter test)
- Remove prepare-wrenn-user.sh (replaced by setup-host.sh)
- Remove old build-rootfs.sh / docker-to-rootfs.sh / per-template build.sh
- Update CLAUDE.md, README.md, envd-rs README with new template info
- Frontend: update admin templates page, admin capsule view, snapshot
dialog to support paused-state snapshots
pptx704
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