Add netboot script

tools-image/Dockerfile

@@ -86,6 +86,7 @@ COPY ./arm /arm
 COPY ./gce.sh /gce.sh
 COPY ./raw-images.sh /raw-images.sh
 COPY ./azure.sh /azure.sh
+COPY ./netboot.sh /netboot.sh
 
 COPY defaults.yaml /defaults.yaml
 

tools-image/netboot.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+# Extracts squashfs, kernel, initrd and generates a ipxe template script
+
+ISO=$1
+OUTPUT_NAME=$2
+VERSION=$3
+
+isoinfo -x /rootfs.squashfs -R -i $ISO > $OUTPUT_NAME.squashfs
+isoinfo -x /boot/kernel -R -i $ISO > $OUTPUT_NAME-kernel
+isoinfo -x /boot/initrd -R -i $ISO > $OUTPUT_NAME-initrd
+
+RELEASE_URL=${RELEASE_URL:-https://github.com/kairos-io/kairos/releases/download}
+
+cat > $OUTPUT_NAME.ipxe << EOF
+#!ipxe
+set url ${RELEASE_URL}/
+set kernel $OUTPUT_NAME-kernel
+set initrd $OUTPUT_NAME-initrd
+set rootfs $OUTPUT_NAME.squashfs
+# set config https://example.com/machine-config
+# set cmdline extra.values=1
+kernel \${url}/\${kernel} initrd=\${initrd} ip=dhcp rd.cos.disable root=live:\${url}/\${rootfs} netboot nodepair.enable config_url=\${config} console=tty1 console=ttyS0 \${cmdline}
+initrd \${url}/\${initrd}
+boot
+EOF