Support passing of Service Account to tkn-results

User can pass flag --sa for serviceaccount name and --sa-ns for
serviceaccount namespace. Latter is optional. If not given, then
namespace from current context is assumed.

tools/tkn-results/cmd/root.go

@@ -73,6 +73,8 @@ func Root() *cobra.Command {
 
 	cmd.PersistentFlags().StringP("addr", "a", "", "Result API server address. If not specified, tkn-result would port-forward to service/tekton-results-api-service automatically")
 	cmd.PersistentFlags().StringP("authtoken", "t", "", "authorization bearer token to use for authenticated requests")
+	cmd.PersistentFlags().String("sa", "", "ServiceAccount to use instead of token for authorization and authentication")
+	cmd.PersistentFlags().String("sa-ns", "", "ServiceAccount Namespace, if not given, it will be taken from current context")
 	cmd.PersistentFlags().Bool("portforward", true, "enable auto portforwarding to tekton-results-api-service, when addr is set and portforward is true, tkn-results will portforward tekton-results-api-service automatically")
 
 	cmd.AddCommand(ListCommand(params), records.Command(params))

tools/tkn-results/internal/client/client.go

@@ -35,6 +35,13 @@ func NewDefaultFactory() (*ClientFactory, error) {
 	if err != nil {
 		return nil, err
 	}
+	if cfg.ServiceAccount.Name != "" && cfg.ServiceAccount.Namespace == "" {
+		ns, _, err := kubeconfig.Namespace()
+		if err != nil {
+			return nil, err
+		}
+		cfg.ServiceAccount.Namespace = ns
+	}
 	client, err := kubernetes.NewForConfig(clientconfig)
 	if err != nil {
 		return nil, err

tools/tkn-results/internal/config/config.go

@@ -102,6 +102,12 @@ func setConfig() error {
 	if s := viper.GetString("authtoken"); s != "" {
 		cfg.Token = viper.GetString("authtoken")
 	}
+	if s := viper.GetString("sa"); s != "" {
+		cfg.ServiceAccount.Name = viper.GetString("sa")
+	}
+	if s := viper.GetString("sa-ns"); s != "" {
+		cfg.ServiceAccount.Namespace = viper.GetString("sa-ns")
+	}
 	cfg.Portforward = viper.GetBool("portforward")
 	return nil
 }