launcher/docker-images/solar-open2-nvfp4/build.sh

#!/usr/bin/env bash
# Build Solar Open2 250B NVFP4 (Nota) Docker image for DGX Spark (aarch64/sm_121a).
# All build inputs are version-pinned in versions.env and locks/.
#
# Generic driver: forwards every KEY=VAL pin in versions.env as a
# --build-arg to the Dockerfile (no hardcoded variable list). The sm121
# launcher writes a merged versions.env here when a recipe carries
# [build.versions] overrides (recipe wins over the image defaults).
set -euo pipefail
cd "$(dirname "$0")"
TAG="${TAG:-solar-open2-nvfp4:probe}"

ARGS=()
while IFS= read -r line; do
    # Skip blank lines and comments (# ...).
    case "$line" in
        ''|\#*) continue ;;
    esac
    key="${line%%=*}"
    val="${line#*=}"
    [ -n "$key" ] && ARGS+=(--build-arg "${key}=${val}")
done < versions.env

echo "=== Building ${TAG} ==="
DOCKER_BUILDKIT=1 docker build "${ARGS[@]}" --progress=plain -t "${TAG}" -f Dockerfile . 2>&1
echo "=== Done: ${TAG} ==="