refactor the profile add

Signed-off-by: jason yang <jasonyangshadow@gmail.com>

internal/pkg/node/constructors.go

@@ -14,8 +14,10 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
-var ConfigFile string
-var DefaultConfig string
+var (
+	ConfigFile    string
+	DefaultConfig string
+)
 
 var cachedDB NodeYaml
 
@@ -91,7 +93,8 @@ func New() (NodeYaml, error) {
 	wwlog.Debug("Returning node object")
 	cachedDB = ret
 	cachedDB.current = true
-	return ret, nil
+	cachedDB.persist = true
+	return cachedDB, nil
 }
 
 /*

internal/pkg/node/modifiers.go

@@ -38,7 +38,6 @@ func (config *NodeYaml) AddNode(nodeID string) (NodeInfo, error) {
 }
 
 func (config *NodeYaml) DelNode(nodeID string) error {
-
 	if _, ok := config.Nodes[nodeID]; !ok {
 		return errors.New("Nodename does not exist: " + nodeID)
 	}
@@ -76,14 +75,14 @@ func (config *NodeYaml) AddProfile(profileID string) (NodeInfo, error) {
 	}
 
 	config.NodeProfiles[profileID] = &node
-
+	config.NodeProfiles[profileID].NetDevs = make(map[string]*NetDevs)
 	n.Id.Set(profileID)
+	n.NetDevs = make(map[string]*NetDevEntry)
 
 	return n, nil
 }
 
 func (config *NodeYaml) DelProfile(profileID string) error {
-
 	if _, ok := config.NodeProfiles[profileID]; !ok {
 		return errors.New("Profile does not exist: " + profileID)
 	}
@@ -131,7 +130,7 @@ func (config *NodeYaml) Persist() error {
 	if !config.persist {
 		return err
 	}
-	file, err := os.OpenFile(ConfigFile, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
+	file, err := os.OpenFile(ConfigFile, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0o644)
 	if err != nil {
 		wwlog.Error("%s", err)
 		os.Exit(1)