[INLONG-11869][SDK]Obtain a valid ip during initialization (#11870)

lvanneo · web-flow · commit f2f9cb57802f · 2025-05-19T15:45:19.000+08:00
diff --git a/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/dataproxy/options.go b/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/dataproxy/options.go
@@ -41,12 +41,9 @@ var (
 
 func init() {
 	var err error
-	localIP, err = util.GetFirstPrivateIP()
+	localIP, err = util.GetOneIP()
 	if err != nil {
-		localIP, err = util.GetFirstIP()
-		if err != nil {
-			localIP = "noIP"
-		}
+		localIP = "noIP"
 	}
 }
 
diff --git a/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/util/id.go b/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/util/id.go
@@ -29,7 +29,7 @@ var (
 )
 
 func init() {
-	ip, err := GetFirstPrivateIP()
+	ip, err := GetOneIP()
 	if err != nil {
 		log.Fatal(err)
 	}
diff --git a/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/util/ip.go b/inlong-sdk/dataproxy-sdk-twins/dataproxy-sdk-golang/util/ip.go
@@ -154,3 +154,23 @@ func GetFirstIP() (string, error) {
 
 	return "", fmt.Errorf("no ip")
 }
+
+// GetOneIP obtain a valid ip address of the current host, with private ip preferred
+func GetOneIP() (string, error) {
+	ips, err := GetIPv4List()
+	if err != nil {
+		return "", fmt.Errorf("failed to obtain ip. %w", err)
+	}
+
+	if len(ips) == 0 {
+		return "", fmt.Errorf("no ip")
+	}
+
+	for _, ip := range ips {
+		if IsPrivateIP(ip) {
+			return ip, nil
+		}
+	}
+
+	return ips[0], nil
+}

Original file line number	Diff line number	Diff line change
`@@ -41,12 +41,9 @@ var (`
`41`	`41`
`42`	`42`	`func init() {`
`43`	`43`	`var err error`
`44`		`- localIP, err = util.GetFirstPrivateIP()`
	`44`	`+ localIP, err = util.GetOneIP()`
`45`	`45`	`if err != nil {`
`46`		`- localIP, err = util.GetFirstIP()`
`47`		`- if err != nil {`
`48`		`- localIP = "noIP"`
`49`		`- }`
	`46`	`+ localIP = "noIP"`
`50`	`47`	`}`
`51`	`48`	`}`
`52`	`49`