fix(pkg/utils): check secret is of service-account-token type

Signed-off-by: Massimiliano Giovagnoli <me@maxgio.it>

main.go

@@ -17,9 +17,9 @@ package main
 import (
 	"flag"
 	"fmt"
-	"github.com/pkg/errors"
 	"os"
 
+	"github.com/pkg/errors"
 	"k8s.io/client-go/kubernetes"
 
 	"github.com/maxgio92/proxy-kubeconfig-generator/pkg/generator"

pkg/utils/errors.go

@@ -0,0 +1,9 @@
+package utils
+
+import (
+	"github.com/pkg/errors"
+)
+
+var (
+	ErrSecretTypeNotServiceAccountToken = errors.New("the secret is not of type service-account-token")
+)

pkg/utils/utils.go

@@ -69,6 +69,10 @@ func GetServiceAccountSecret(clientSet *kubernetes.Clientset, serviceAccountName
 		return nil, err
 	}
 
+	if saSecret.Type != corev1.SecretTypeServiceAccountToken {
+		return nil, ErrSecretTypeNotServiceAccountToken
+	}
+
 	return saSecret, nil
 }