From 0dbf86afcf042d27ee0b3beb255e95823d5a161f Mon Sep 17 00:00:00 2001
From: WanLinghao <wanlh.fnst@cn.fujitsu.com>
Date: Tue, 19 Feb 2019 11:42:05 +0800
Subject: [PATCH] Migrate the controller to use TokenRequest and rotate token
 periodically

Kubernetes-commit: 244b244f9d84c56ad3a5af255b70c793f6bfd39c
---
 transport/token_source.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/transport/token_source.go b/transport/token_source.go
index 8595df27..b8cadd38 100644
--- a/transport/token_source.go
+++ b/transport/token_source.go
@@ -59,6 +59,15 @@ func NewCachedFileTokenSource(path string) oauth2.TokenSource {
 	}
 }
 
+// NewCachedTokenSource returns a oauth2.TokenSource reads a token from a
+// designed TokenSource. The ts would provide the source of token.
+func NewCachedTokenSource(ts oauth2.TokenSource) oauth2.TokenSource {
+	return &cachingTokenSource{
+		now:  time.Now,
+		base: ts,
+	}
+}
+
 type tokenSourceTransport struct {
 	base http.RoundTripper
 	ort  http.RoundTripper