feat(local-config): host hash helper

localconfig/host.go

@@ -0,0 +1,28 @@
+package localconfig
+
+import (
+	"io"
+
+	yaml "gopkg.in/yaml.v2"
+)
+
+type Host struct {
+	Name string
+	MACs []string
+	IPs  []string
+
+	Kernel string
+	Initrd string
+	Layers map[string]string
+
+	Config []byte
+}
+
+func (h *Host) WriteHashDataTo(w io.Writer) error {
+	return yaml.NewEncoder(w).Encode(Host{
+		Kernel: h.Kernel,
+		Initrd: h.Initrd,
+		Layers: h.Layers,
+		Config: h.Config,
+	})
+}

localconfig/localconfig.go

@@ -17,18 +17,6 @@ type Cluster struct {
 	Addons []byte
 }
 
-type Host struct {
-	Name string
-	MACs []string
-	IPs  []string
-
-	Kernel string
-	Initrd string
-	Layers map[string]string
-
-	Config []byte
-}
-
 func FromBytes(data []byte) (*Config, error) {
 	config := &Config{}
 	if err := yaml.Unmarshal(data, config); err != nil {