oclib -> Generate Peer ID

entrypoint.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"os"
 	"strings"
 
 	"runtime/debug"
@@ -30,6 +31,7 @@ import (
 	"cloud.o-forge.io/core/oc-lib/tools"
 	beego "github.com/beego/beego/v2/server/web"
 	"github.com/beego/beego/v2/server/web/context"
+	"github.com/google/uuid"
 	"github.com/goraz/onion"
 	"github.com/rs/zerolog"
 )
@@ -60,6 +62,25 @@ const (
 	NATIVE_TOOL                     = tools.NATIVE_TOOL
 )
 
+func GenerateNodeID() (string, error) {
+	folderStatic := "/var/lib/opencloud-node"
+	if _, err := os.Stat(folderStatic); err == nil {
+		os.MkdirAll(folderStatic, 0644)
+	}
+	folderStatic += "/node_id"
+	if _, err := os.Stat(folderStatic); os.IsNotExist(err) {
+		hostname, err := os.Hostname()
+		if err != nil {
+			return "", err
+		}
+		id := uuid.NewSHA1(uuid.NameSpaceOID, []byte("oc-"+hostname))
+		err = os.WriteFile(folderStatic, []byte(id.String()), 0644)
+		return id.String(), err
+	}
+	data, err := os.ReadFile(folderStatic)
+	return string(data), err
+}
+
 // will turn into standards api hostnames
 func (d LibDataEnum) API() string {
 	return tools.DefaultAPI[d]