fix (id): work with multiple containers

common/random.go

@@ -0,0 +1,22 @@
+package common
+
+import (
+	"crypto/rand"
+	"math/big"
+)
+
+var Letters = []rune("abcdefghijklmnopqrstuvwxyz0123456789")
+
+func RandomString(n int) string {
+	b := make([]rune, n)
+	for i := range b {
+		max := *big.NewInt(int64(len(Letters)))
+		r, err := rand.Int(rand.Reader, &max)
+		if err != nil {
+			b[i] = Letters[0]
+		} else {
+			b[i] = Letters[r.Int64()]
+		}
+	}
+	return string(b)
+}

ctrl/tunnel.go

@@ -2,11 +2,9 @@ package ctrl
 
 import (
 	"context"
-	"crypto/rand"
 	"crypto/tls"
 	"fmt"
 	"io/ioutil"
-	"math/big"
 	"net/http"
 	"time"
 
@@ -131,19 +129,3 @@ func setup(url string, tenant string, jsonInfo []byte, retry int) error {
 	ws.Close()
 	return nil
 }
-
-var Letters = []rune("abcdefghijklmnopqrstuvwxyz0123456789")
-
-func RandomString(n int) string {
-	b := make([]rune, n)
-	for i := range b {
-		max := *big.NewInt(int64(len(Letters)))
-		r, err := rand.Int(rand.Reader, &max)
-		if err != nil {
-			b[i] = Letters[0]
-		} else {
-			b[i] = Letters[r.Int64()]
-		}
-	}
-	return string(b)
-}

webfleet/model/machine.go

@@ -44,10 +44,10 @@ func GetMachineInfo() []byte {
 			content, err := os.ReadFile("/etc/machine-id")
 			if err != nil {
 				return ""
-			} else if string(content) == "" {
-				content, _ = os.ReadFile("/proc/sys/kernel/random/uuid")
+			} else if string(content) != "" {
+				return strings.TrimSpace(string(content))
 			}
-			return strings.TrimSpace(string(content))
+			return RandomString(5)
 		}(),
 		Device: func() string {
 			if isMac() {