The Datab Node ships on Ubuntu Core 24 — Canonical's atomic, transactional, snap-based variant of Ubuntu. Every node runs the same OS image; the workload differs only by the snaps installed on top.

Why Ubuntu Core (vs. Ubuntu Server)

• Atomic updates. snapd installs new revisions side-by-side; failure to start rolls back automatically.
• Read-only root. The OS partition isn't modified at runtime; only $SNAP_COMMON is writable.
• Long-term security updates. Ten-year support window matches the appliance lifecycle.
• Confinement. Every snap runs under AppArmor profiles by default.

Architectures

• amd64 — Intel / AMD nodes. The most common configuration.
• arm64 — Raspberry Pi 5, generic ARM appliances, NXP boards.

Image artifacts

Image artifacts (UC24 + datab-app pre-installed) are published on the Datab Node Images page. Both architectures share the same datab-app snap version per release; only the OS image differs.

Status

Image artifacts for RC1 are TBD until the first signed publish. The image layout is finalized; the binaries are not yet uploaded.