added grub.cfg.ww

Signed-off-by: Christian Goll <cgoll@suse.com>

etc/examples/grub.cfg.ww

@@ -0,0 +1,28 @@
+# This file is autogenerated by warewulf
+# Host:   {{.BuildHost}}
+# Time:   {{.BuildTime}}
+# Source: {{.BuildSource}}
+echo "================================================================================"
+echo "Warewulf v4 now booting with grub"
+echo
+uri="(http,{{.Ipaddr}}:9873)/provision/${net_default_mac}?assetkey="
+kernel="${uri}&stage=kernel"
+container="${uri}&stage=container&compress=gz"
+system="${uri}&stage=system&compress=gz"
+echo "Warewulf Controller: {{.Ipaddr}}"
+echo "Trying to load a kernel... "
+linux $kernel wwid=${net_default_mac}
+if [ x$? = x0 ] ; then
+echo "Loading initrd..."
+initrd $system $container
+echo "Booting..."
+boot
+else
+echo "MESSAGE: This node is unconfigured. Please have your system administrator add a"
+echo "         configuration for this node with HW address: ${net_default_mac}"
+echo ""
+echo "Rebooting in 1 minute..."
+sleep 60
+reboot
+fi
+