Enhance eMMC provisioning dashboard: implement cloud-init template management with options to load, save, and delete templates. Update UI to support selecting Raspberry Pi OS variant for image building and improve user instructions for cloud-init image creation. Add new API endpoints for managing cloud-init templates and fetching the latest Raspberry Pi OS URLs.

chromium-setup/emmc-provisioning/host/build-cloudinit-image.sh

@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+# Run on the Proxmox host when build_cloudinit_request.json appears in the provisioning dir.
+# Downloads Raspberry Pi OS image from URL, injects cloud-init NoCloud files, saves to BACKUPS_DIR.
+# Uses loop devices and mount (available on host, not in unprivileged LXC).
+# Triggered by systemd path unit cm4-build-cloudinit.path.
+
+set -e
+PROV_DIR="${CM4_PROVISIONING_DIR:-/var/lib/cm4-provisioning}"
+REQUEST_FILE="$PROV_DIR/build_cloudinit_request.json"
+STATUS_FILE="$PROV_DIR/build_cloudinit_status.json"
+[[ -f /opt/cm4-provisioning/env ]] && source /opt/cm4-provisioning/env
+BACKUPS_DIR="${BACKUPS_DIR:-$PROV_DIR/backups}"
+GOLDEN_IMAGE="${GOLDEN_IMAGE:-$PROV_DIR/golden.img}"
+
+write_status() {
+    local phase="$1" message="$2" output_name="$3" error="$4"
+    printf '{"phase":"%s","message":"%s","output_name":%s,"error":%s,"updated":%s}\n' \
+        "$phase" "$message" \
+        "$([ -n "$output_name" ] && echo "\"$output_name\"" || echo "null")" \
+        "$([ -n "$error" ] && echo "\"${error//\"/\\\"}\"" || echo "null")" \
+        "$(date +%s)" > "$STATUS_FILE"
+}
+
+[[ -f "$REQUEST_FILE" ]] || { echo "No request file"; exit 0; }
+
+TEMP_DIR=$(mktemp -d -p "$BACKUPS_DIR" cloudinit-build.XXXXXX)
+trap 'rm -rf "$TEMP_DIR"; rm -f "$REQUEST_FILE"' EXIT
+
+# Extract fields from JSON into temp files (handles multi-line content)
+python3 - "$REQUEST_FILE" "$TEMP_DIR" << 'PY'
+import json, sys
+with open(sys.argv[1]) as f:
+    d = json.load(f)
+out = sys.argv[2]
+for name, key in [("user-data", "user_data"), ("meta-data", "meta_data"), ("network-config", "network_config")]:
+    with open(f"{out}/{name}", "w") as f:
+        f.write(d.get(key, ""))
+with open(f"{out}/variant", "w") as f:
+    f.write(d.get("variant", "lite"))
+with open(f"{out}/url", "w") as f:
+    f.write(d.get("url", ""))
+with open(f"{out}/set_golden", "w") as f:
+    f.write("1" if d.get("set_as_golden_after") else "0")
+PY
+
+URL=$(cat "$TEMP_DIR/url")
+VARIANT=$(cat "$TEMP_DIR/variant")
+SET_AS_GOLDEN=$(cat "$TEMP_DIR/set_golden")
+[[ -n "$URL" ]] || { write_status "error" "" "" "Missing url in request"; exit 1; }
+
+OUT_NAME="raspios-${VARIANT}-cloudinit-$(date +%Y%m%d-%H%M%S).img"
+OUT_PATH="$BACKUPS_DIR/$OUT_NAME"
+
+write_status "downloading" "Downloading $(basename "$URL")…" "" ""
+XZ_FILE="$TEMP_DIR/image.img.xz"
+if ! curl -f -sS -L -o "$XZ_FILE" "$URL"; then
+    write_status "error" "" "" "Download failed"
+    exit 1
+fi
+
+write_status "decompressing" "Decompressing image…" "" ""
+IMG_FILE="$TEMP_DIR/image.img"
+xz -d -k -f "$XZ_FILE" || { write_status "error" "" "" "Decompress failed"; exit 1; }
+[[ -f "$IMG_FILE" ]] || { write_status "error" "" "" "image.img not found after decompress"; exit 1; }
+
+write_status "injecting" "Mounting boot partition and injecting cloud-init…" "" ""
+LOOP=$(losetup -f --show -P "$IMG_FILE")
+boot_part="${LOOP}p1"
+[[ -b "$boot_part" ]] || boot_part="${LOOP}p2"
+[[ -b "$boot_part" ]] || { write_status "error" "" "" "Boot partition not found"; losetup -d "$LOOP"; exit 1; }
+
+MNT="$TEMP_DIR/mnt"
+mkdir -p "$MNT"
+mount "$boot_part" "$MNT"
+cp "$TEMP_DIR/user-data" "$MNT/user-data"
+cp "$TEMP_DIR/meta-data" "$MNT/meta-data"
+cp "$TEMP_DIR/network-config" "$MNT/network-config"
+umount "$MNT"
+losetup -d "$LOOP"
+
+write_status "finalizing" "Copying image to backups…" "" ""
+mkdir -p "$BACKUPS_DIR"
+cp "$IMG_FILE" "$OUT_PATH"
+
+if [[ "$SET_AS_GOLDEN" == "1" ]]; then
+    cp "$OUT_PATH" "$GOLDEN_IMAGE"
+    write_status "done" "Built $OUT_NAME and set as golden image." "$OUT_NAME" ""
+else
+    write_status "done" "Built $OUT_NAME" "$OUT_NAME" ""
+fi