Merge pull request #3009 from olemarkus/continue-on-bad-source

If an error propagates all the way out, bail execution

controller/controller.go

@@ -336,7 +336,7 @@ func (c *Controller) Run(ctx context.Context) {
 	for {
 		if c.ShouldRunOnce(time.Now()) {
 			if err := c.RunOnce(ctx); err != nil {
-				log.Error(err)
+				log.Fatal(err)
 			}
 		}
 		select {