From 9a210e24d9f5eb3997540022ffdf77fbda4ce1e4 Mon Sep 17 00:00:00 2001
From: shuting <shutting06@gmail.com>
Date: Tue, 1 Sep 2020 17:23:54 -0700
Subject: [PATCH] bug fix - nil pointer (#1093)

* add watch policy to clusterrole kyverno:customresources

* fix build

* fix nil pointer
---
 pkg/policymutation/cronjob.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkg/policymutation/cronjob.go b/pkg/policymutation/cronjob.go
index bd88cbce5d..a08ee2084c 100644
--- a/pkg/policymutation/cronjob.go
+++ b/pkg/policymutation/cronjob.go
@@ -2,6 +2,7 @@ package policymutation
 
 import (
 	"fmt"
+	"reflect"
 	"strings"
 
 	"github.com/go-logr/logr"
@@ -20,6 +21,10 @@ func generateCronJobRule(rule kyverno.Rule, controllers string, log logr.Logger)
 	logger.V(3).Info("")
 	jobRule := generateRuleForControllers(rule, "Job", logger)
 
+	if reflect.DeepEqual(jobRule, kyvernoRule{}) {
+		return kyvernoRule{}
+	}
+
 	cronJobRule := &jobRule
 	cronJobRule.Name = fmt.Sprintf("autogen-cronjob-%s", rule.Name)
 	cronJobRule.MatchResources.Kinds = []string{engine.PodControllerCronJob}