Extract ssh.zip to /root/.ssh/zip at startup

apps/rego-tunnel/build/start-vm.sh

@@ -1,5 +1,36 @@
 #!/bin/bash
+set -euo pipefail
+
+# If provided, extract ssh.zip to /root/.ssh/zip (not baked into the image)
+SSH_ZIP_PATH="/shared/ssh.zip"
+SSH_ZIP_DEST="/root/.ssh/zip"
+
+if [ -f "$SSH_ZIP_PATH" ]; then
+	mkdir -p "$SSH_ZIP_DEST"
+	chmod 700 /root/.ssh
+	chmod 700 "$SSH_ZIP_DEST"
+
+	echo "[rego-tunnel] Extracting $SSH_ZIP_PATH -> $SSH_ZIP_DEST"
+	7z x -y -o"$SSH_ZIP_DEST" "$SSH_ZIP_PATH" >/dev/null
+
+	find "$SSH_ZIP_DEST" -type d -exec chmod 700 {} \;
+	find "$SSH_ZIP_DEST" -type f -exec chmod 600 {} \;
+else
+	echo "[rego-tunnel] No $SSH_ZIP_PATH found; skipping SSH zip extraction"
+fi
+
 # Wait for network setup
 sleep 2
 
-exec qemu-system-x86_64     -enable-kvm     -cpu host     -m ${VM_RAM:-8G}     -smp ${VM_CPUS:-4}     -hda /vm/linux-vm.qcow2     -netdev tap,id=net0,ifname=tap0,script=no,downscript=no     -device virtio-net-pci,netdev=net0,mac=52:54:00:12:34:56     -vnc :0     -vga virtio     -usb     -device usb-tablet
+exec qemu-system-x86_64 \
+	-enable-kvm \
+	-cpu host \
+	-m ${VM_RAM:-8G} \
+	-smp ${VM_CPUS:-4} \
+	-hda /vm/linux-vm.qcow2 \
+	-netdev tap,id=net0,ifname=tap0,script=no,downscript=no \
+	-device virtio-net-pci,netdev=net0,mac=52:54:00:12:34:56 \
+	-vnc :0 \
+	-vga virtio \
+	-usb \
+	-device usb-tablet