Agent Auto Auth Self Healing for Templates (#26172)

* Agent Auto Auth Self Healing for Templates

* Added changelog

* Edited go.sum

* Edit changelog wording

Author: divyaac

changelog/26172.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+agent: Agent will re-trigger auto auth if token used for rendering templates has been revoked, has exceeded the number of uses, or is a bogus value.
+```

command/agent.go

@@ -83,8 +83,7 @@ type AgentCommand struct {
 
 	// Telemetry object
 	metricsHelper *metricsutil.MetricsHelper
-
-	cleanupGuard sync.Once
+	cleanupGuard  sync.Once
 
 	startedCh  chan struct{} // for tests
 	reloadedCh chan struct{} // for tests
@@ -787,7 +786,7 @@ func (c *AgentCommand) Run(args []string) int {
 		})
 
 		g.Add(func() error {
-			err := ss.Run(ctx, ah.OutputCh, sinks)
+			err := ss.Run(ctx, ah.OutputCh, sinks, ah.AuthInProgress)
 			c.logger.Info("sinks finished, exiting")
 
 			// Start goroutine to drain from ah.OutputCh from this point onward
@@ -818,7 +817,7 @@ func (c *AgentCommand) Run(args []string) int {
 		})
 
 		g.Add(func() error {
-			return ts.Run(ctx, ah.TemplateTokenCh, config.Templates)
+			return ts.Run(ctx, ah.TemplateTokenCh, config.Templates, ah.AuthInProgress, ah.InvalidToken)
 		}, func(error) {
 			// Let the lease cache know this is a shutdown; no need to evict
 			// everything