adding install script

butane/ckube-install

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+target=$(xargs -n1 -a /proc/cmdline | awk -F '=' '/^flatcar.target=.*/ {print $NF}')
+
+flatcar-install -d ${target} -i /opt/ignition.json && udevadm settle && systemctl reboot"

butane/k8s-leader-install.yaml

@@ -21,7 +21,7 @@ systemd:
         Type=forking
         TimeoutStartSec=600
         RemainAfterExit=yes
-        ExecStart=/usr/bin/sh -c "flatcar-install -d /dev/vda -i /opt/ignition.json && udevadm settle && systemctl reboot"
+        ExecStart=/usr/bin/sh -c "/opt/ckube-install"
         [Install]
         WantedBy=multi-user.target
 storage:
@@ -29,4 +29,8 @@ storage:
     - path: /opt/ignition.json
       mode: 0700
       contents:
-        source: http://192.168.40.3/leader.json
+        source: http://192.168.40.3/leader.json
+    - path: /opt/ckube-install 
+      mode: 0700
+      contents:
+        source: http://192.168.40.3/ckube-install