enable grub boot for all nodes

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

internal/pkg/overlay/datastructure.go

@@ -34,6 +34,7 @@ type TemplateStruct struct {
 	Tftp          warewulfconf.TFTPConf
 	Paths         warewulfconf.BuildConfig
 	AllNodes      []node.NodeInfo
+	ProfileMap    map[string]*node.NodeInfo
 	node.NodeConf
 	// backward compatiblity
 	Container string
@@ -49,19 +50,19 @@ func InitStruct(nodeInfo *node.NodeInfo) TemplateStruct {
 	controller := warewulfconf.Get()
 	nodeDB, err := node.New()
 	if err != nil {
-		wwlog.Error("%s", err)
-		os.Exit(1)
+		wwlog.Warn("Problems opening nodes.conf: %s", err)
 	}
-	allNodes, err := nodeDB.FindAllNodes()
+	tstruct.AllNodes, err = nodeDB.FindAllNodes()
 	if err != nil {
-		wwlog.Error("%s", err)
-		os.Exit(1)
+		wwlog.Warn("couldn't get all nodes: %s", err)
+	}
+	tstruct.ProfileMap, err = nodeDB.MapAllProfiles()
+	if err != nil {
+		wwlog.Warn("couldn't get all profiles: %s", err)
 	}
 	// init some convenience vars
 	tstruct.Id = nodeInfo.Id.Get()
 	tstruct.Hostname = nodeInfo.Id.Get()
-	// Backwards compatibility for templates using "Keys"
-	tstruct.AllNodes = allNodes
 	tstruct.Nfs = *controller.NFS
 	tstruct.Dhcp = *controller.DHCP
 	tstruct.Tftp = *controller.TFTP