diff --git a/tools-image/Dockerfile b/tools-image/Dockerfile
index 7037357..1175f79 100644
--- a/tools-image/Dockerfile
+++ b/tools-image/Dockerfile
@@ -14,10 +14,11 @@ COPY --from=grub2 / /grub2
 COPY --from=efi / /efi
 
 RUN zypper ref && zypper dup -y
-RUN zypper ref && zypper in -y xfsprogs parted util-linux-systemd e2fsprogs util-linux udev rsync grub2 dosfstools grub2-x86_64-efi squashfs mtools xorriso lvm2
+RUN zypper ref && zypper in -y xfsprogs parted util-linux-systemd e2fsprogs curl util-linux udev rsync grub2 dosfstools grub2-x86_64-efi squashfs mtools xorriso lvm2
 RUN mkdir /config
 
 COPY ./config.yaml /config/manifest.yaml
 COPY ./entrypoint.sh /entrypoint.sh
+COPY ./add-cloud-init.sh /add-cloud-init.sh
 
 ENTRYPOINT [ "/entrypoint.sh" ]
diff --git a/tools-image/add-cloud-init.sh b/tools-image/add-cloud-init.sh
new file mode 100755
index 0000000..f414a4f
--- /dev/null
+++ b/tools-image/add-cloud-init.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+# docker run --entrypoint /add-cloud-init.sh -v $PWD:/work -ti --rm test https://github.com/kairos-io/kairos/releases/download/v1.1.2/kairos-alpine-v1.1.2.iso /work/test.iso /work/config.yaml
+
+set -ex
+
+ISO=$1
+OUT=$2
+CONFIG=$3
+
+case ${ISO} in
+http*)
+    curl -L "${ISO}" -o in.iso
+    ISO=in.iso
+    ;;
+esac
+
+# Needs xorriso >=1.5.4
+xorriso -indev $ISO -outdev $OUT -map $CONFIG /config.yaml -boot_image any replay
\ No newline at end of file