527 decoupling sender and reciever

cmd/kyverno/main.go

@@ -140,7 +140,6 @@ func main() {
 	// Policy Status Handler - deals with all logic related to policy status
 	statusSync := policyStatus.NewSync(
 		pclient,
-		stopCh,
 		policyMetaStore)
 
 	// POLICY VIOLATION GENERATOR

pkg/generate/policyStatus_test.go

@@ -0,0 +1,58 @@
+package generate
+
+import (
+	"encoding/json"
+	"reflect"
+	"testing"
+
+	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
+	"github.com/nirmata/kyverno/pkg/policyStatus"
+)
+
+type dummyStore struct {
+}
+
+func (d *dummyStore) Get(policyName string) (*v1.ClusterPolicy, error) {
+	return &v1.ClusterPolicy{}, nil
+}
+
+func Test_Stats(t *testing.T) {
+	testCase := struct {
+		generatedCountStats []v1.GenerateRequest
+		expectedOutput      []byte
+	}{
+		expectedOutput: []byte(`{"policy1":{"averageExecutionTime":"","resourcesGeneratedCount":1},"policy2":{"averageExecutionTime":"","resourcesGeneratedCount":1}}`),
+		generatedCountStats: []v1.GenerateRequest{
+			{
+				Spec: v1.GenerateRequestSpec{
+					Policy: "policy1",
+				},
+				Status: v1.GenerateRequestStatus{
+					GeneratedResources: make([]v1.ResourceSpec, 1),
+				},
+			},
+			{
+				Spec: v1.GenerateRequestSpec{
+					Policy: "policy2",
+				},
+				Status: v1.GenerateRequestStatus{
+					GeneratedResources: make([]v1.ResourceSpec, 1),
+				},
+			},
+		},
+	}
+
+	s := policyStatus.NewSync(nil, &dummyStore{})
+
+	for _, generateCountStat := range testCase.generatedCountStats {
+		receiver := &generatedResourceCount{
+			generateRequest: generateCountStat,
+		}
+		receiver.UpdateStatus(s)
+	}
+
+	output, _ := json.Marshal(s.Cache.Data)
+	if !reflect.DeepEqual(output, testCase.expectedOutput) {
+		t.Errorf("\n\nTestcase has failed\nExpected:\n%v\nGot:\n%v\n\n", string(testCase.expectedOutput), string(output))
+	}
+}

pkg/generate/status.go

@@ -44,7 +44,9 @@ func (sc StatusControl) Success(gr kyverno.GenerateRequest, genResources []kyver
 	gr.Status.GeneratedResources = genResources
 
 	if oldState != kyverno.Completed {
-		go sc.policyStatus.UpdatePolicyStatusWithGeneratedResourceCount(gr)
+		go func() {
+			sc.policyStatus.Listener <- updatePolicyStatusWithGeneratedResourceCount(gr)
+		}()
 	}
 
 	_, err := sc.client.KyvernoV1().GenerateRequests("kyverno").UpdateStatus(&gr)
@@ -55,3 +57,29 @@ func (sc StatusControl) Success(gr kyverno.GenerateRequest, genResources []kyver
 	glog.V(4).Infof("updated gr %s status to %s", gr.Name, string(kyverno.Completed))
 	return nil
 }
+
+type generatedResourceCount struct {
+	generateRequest kyverno.GenerateRequest
+}
+
+func updatePolicyStatusWithGeneratedResourceCount(generateRequest kyverno.GenerateRequest) *generatedResourceCount {
+	return &generatedResourceCount{
+		generateRequest: generateRequest,
+	}
+}
+
+func (vc *generatedResourceCount) UpdateStatus(s *policyStatus.Sync) {
+	s.Cache.Mutex.Lock()
+	status, exist := s.Cache.Data[vc.generateRequest.Spec.Policy]
+	if !exist {
+		policy, _ := s.PolicyStore.Get(vc.generateRequest.Spec.Policy)
+		if policy != nil {
+			status = policy.Status
+		}
+	}
+
+	status.ResourcesGeneratedCount += len(vc.generateRequest.Status.GeneratedResources)
+
+	s.Cache.Data[vc.generateRequest.Spec.Policy] = status
+	s.Cache.Mutex.Unlock()
+}

pkg/policyStatus/1_interface.go

@@ -1,5 +0,0 @@
-package policyStatus
-
-type statusUpdater interface {
-	updateStatus()
-}

pkg/policyStatus/2_functions.go

@@ -1,14 +0,0 @@
-package policyStatus
-
-import "time"
-
-func updateAverageTime(newTime time.Duration, oldAverageTimeString string, averageOver int64) time.Duration {
-	if averageOver == 0 {
-		return newTime
-	}
-	oldAverageExecutionTime, _ := time.ParseDuration(oldAverageTimeString)
-	numerator := (oldAverageExecutionTime.Nanoseconds() * averageOver) + newTime.Nanoseconds()
-	denominator := averageOver + 1
-	newAverageTimeInNanoSeconds := numerator / denominator
-	return time.Duration(newAverageTimeInNanoSeconds) * time.Nanosecond
-}

pkg/policyStatus/generateStats.go

@@ -1,85 +0,0 @@
-package policyStatus
-
-import (
-	"reflect"
-	"sort"
-	"time"
-
-	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
-	"github.com/nirmata/kyverno/pkg/engine/response"
-)
-
-type generateStats struct {
-	s    *Sync
-	resp response.EngineResponse
-}
-
-func (s *Sync) UpdateStatusWithGenerateStats(resp response.EngineResponse) {
-	s.listener <- &generateStats{
-		s:    s,
-		resp: resp,
-	}
-}
-
-func (gs *generateStats) updateStatus() {
-	if reflect.DeepEqual(response.EngineResponse{}, gs.resp) {
-		return
-	}
-
-	gs.s.cache.mutex.Lock()
-	policyStatus, exist := gs.s.cache.data[gs.resp.PolicyResponse.Policy]
-	if !exist {
-		if gs.s.policyStore != nil {
-			policy, _ := gs.s.policyStore.Get(gs.resp.PolicyResponse.Policy)
-			if policy != nil {
-				policyStatus = policy.Status
-			}
-		}
-	}
-
-	var nameToRule = make(map[string]v1.RuleStats)
-	for _, rule := range policyStatus.Rules {
-		nameToRule[rule.Name] = rule
-	}
-
-	for _, rule := range gs.resp.PolicyResponse.Rules {
-		ruleStat := nameToRule[rule.Name]
-		ruleStat.Name = rule.Name
-
-		averageOver := int64(ruleStat.AppliedCount + ruleStat.FailedCount)
-		ruleStat.ExecutionTime = updateAverageTime(
-			rule.ProcessingTime,
-			ruleStat.ExecutionTime,
-			averageOver).String()
-
-		if rule.Success {
-			policyStatus.RulesAppliedCount++
-			ruleStat.AppliedCount++
-		} else {
-			policyStatus.RulesFailedCount++
-			ruleStat.FailedCount++
-		}
-
-		nameToRule[rule.Name] = ruleStat
-	}
-
-	var policyAverageExecutionTime time.Duration
-	var ruleStats = make([]v1.RuleStats, 0, len(nameToRule))
-	for _, ruleStat := range nameToRule {
-		executionTime, err := time.ParseDuration(ruleStat.ExecutionTime)
-		if err == nil {
-			policyAverageExecutionTime += executionTime
-		}
-		ruleStats = append(ruleStats, ruleStat)
-	}
-
-	sort.Slice(ruleStats, func(i, j int) bool {
-		return ruleStats[i].Name < ruleStats[j].Name
-	})
-
-	policyStatus.AvgExecutionTime = policyAverageExecutionTime.String()
-	policyStatus.Rules = ruleStats
-
-	gs.s.cache.data[gs.resp.PolicyResponse.Policy] = policyStatus
-	gs.s.cache.mutex.Unlock()
-}

pkg/policyStatus/generatedResourceCount.go

@@ -1,31 +0,0 @@
-package policyStatus
-
-import v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
-
-type generatedResourceCount struct {
-	sync            *Sync
-	generateRequest v1.GenerateRequest
-}
-
-func (s *Sync) UpdatePolicyStatusWithGeneratedResourceCount(generateRequest v1.GenerateRequest) {
-	s.listener <- &generatedResourceCount{
-		sync:            s,
-		generateRequest: generateRequest,
-	}
-}
-
-func (vc *generatedResourceCount) updateStatus() {
-	vc.sync.cache.mutex.Lock()
-	status, exist := vc.sync.cache.data[vc.generateRequest.Spec.Policy]
-	if !exist {
-		policy, _ := vc.sync.policyStore.Get(vc.generateRequest.Spec.Policy)
-		if policy != nil {
-			status = policy.Status
-		}
-	}
-
-	status.ResourcesGeneratedCount += len(vc.generateRequest.Status.GeneratedResources)
-
-	vc.sync.cache.data[vc.generateRequest.Spec.Policy] = status
-	vc.sync.cache.mutex.Unlock()
-}

pkg/policyStatus/main.go

@@ -6,8 +6,6 @@ import (
 
 	"github.com/golang/glog"
 
-	"github.com/nirmata/kyverno/pkg/policystore"
-
 	"k8s.io/apimachinery/pkg/util/wait"
 
 	"github.com/nirmata/kyverno/pkg/client/clientset/versioned"
@@ -15,27 +13,35 @@ import (
 	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
 )
 
+type statusUpdater interface {
+	UpdateStatus(s *Sync)
+}
+
+type policyStore interface {
+	Get(policyName string) (*v1.ClusterPolicy, error)
+}
+
 type Sync struct {
-	cache       *cache
-	listener    chan statusUpdater
+	Cache       *cache
+	Listener    chan statusUpdater
 	client      *versioned.Clientset
-	policyStore *policystore.PolicyStore
+	PolicyStore policyStore
 }
 
 type cache struct {
-	mutex sync.RWMutex
-	data  map[string]v1.PolicyStatus
+	Mutex sync.RWMutex
+	Data  map[string]v1.PolicyStatus
 }
 
-func NewSync(c *versioned.Clientset, pms *policystore.PolicyStore) *Sync {
+func NewSync(c *versioned.Clientset, p policyStore) *Sync {
 	return &Sync{
-		cache: &cache{
-			mutex: sync.RWMutex{},
-			data:  make(map[string]v1.PolicyStatus),
+		Cache: &cache{
+			Mutex: sync.RWMutex{},
+			Data:  make(map[string]v1.PolicyStatus),
 		},
 		client:      c,
-		policyStore: pms,
-		listener:    make(chan statusUpdater),
+		PolicyStore: p,
+		Listener:    make(chan statusUpdater),
 	}
 }
 
@@ -52,8 +58,8 @@ func (s *Sync) Run(workers int, stopCh <-chan struct{}) {
 func (s *Sync) updateStatusCache(stopCh <-chan struct{}) {
 	for {
 		select {
-		case statusUpdater := <-s.listener:
-			statusUpdater.updateStatus()
+		case statusUpdater := <-s.Listener:
+			statusUpdater.UpdateStatus(s)
 		case <-stopCh:
 			return
 		}
@@ -61,24 +67,24 @@ func (s *Sync) updateStatusCache(stopCh <-chan struct{}) {
 }
 
 func (s *Sync) updatePolicyStatus() {
-	s.cache.mutex.Lock()
-	var nameToStatus = make(map[string]v1.PolicyStatus, len(s.cache.data))
-	for k, v := range s.cache.data {
+	s.Cache.Mutex.Lock()
+	var nameToStatus = make(map[string]v1.PolicyStatus, len(s.Cache.Data))
+	for k, v := range s.Cache.Data {
 		nameToStatus[k] = v
 	}
-	s.cache.mutex.Unlock()
+	s.Cache.Mutex.Unlock()
 
 	for policyName, status := range nameToStatus {
-		policy, err := s.policyStore.Get(policyName)
+		policy, err := s.PolicyStore.Get(policyName)
 		if err != nil {
 			continue
 		}
 		policy.Status = status
 		_, err = s.client.KyvernoV1().ClusterPolicies().UpdateStatus(policy)
 		if err != nil {
-			s.cache.mutex.Lock()
-			delete(s.cache.data, policyName)
-			s.cache.mutex.Unlock()
+			s.Cache.Mutex.Lock()
+			delete(s.Cache.Data, policyName)
+			s.Cache.Mutex.Unlock()
 			glog.V(4).Info(err)
 		}
 	}

pkg/policyStatus/mutateStats.go

@@ -1,88 +0,0 @@
-package policyStatus
-
-import (
-	"reflect"
-	"sort"
-	"time"
-
-	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
-	"github.com/nirmata/kyverno/pkg/engine/response"
-)
-
-type mutateStats struct {
-	s    *Sync
-	resp response.EngineResponse
-}
-
-func (s *Sync) UpdateStatusWithMutateStats(resp response.EngineResponse) {
-	s.listener <- &mutateStats{
-		s:    s,
-		resp: resp,
-	}
-
-}
-
-func (ms *mutateStats) updateStatus() {
-	if reflect.DeepEqual(response.EngineResponse{}, ms.resp) {
-		return
-	}
-
-	ms.s.cache.mutex.Lock()
-	policyStatus, exist := ms.s.cache.data[ms.resp.PolicyResponse.Policy]
-	if !exist {
-		if ms.s.policyStore != nil {
-			policy, _ := ms.s.policyStore.Get(ms.resp.PolicyResponse.Policy)
-			if policy != nil {
-				policyStatus = policy.Status
-			}
-		}
-	}
-
-	var nameToRule = make(map[string]v1.RuleStats)
-	for _, rule := range policyStatus.Rules {
-		nameToRule[rule.Name] = rule
-	}
-
-	for _, rule := range ms.resp.PolicyResponse.Rules {
-		ruleStat := nameToRule[rule.Name]
-		ruleStat.Name = rule.Name
-
-		averageOver := int64(ruleStat.AppliedCount + ruleStat.FailedCount)
-		ruleStat.ExecutionTime = updateAverageTime(
-			rule.ProcessingTime,
-			ruleStat.ExecutionTime,
-			averageOver).String()
-
-		if rule.Success {
-			policyStatus.RulesAppliedCount++
-			policyStatus.ResourcesMutatedCount++
-			ruleStat.AppliedCount++
-			ruleStat.ResourcesMutatedCount++
-		} else {
-			policyStatus.RulesFailedCount++
-			ruleStat.FailedCount++
-		}
-
-		nameToRule[rule.Name] = ruleStat
-	}
-
-	var policyAverageExecutionTime time.Duration
-	var ruleStats = make([]v1.RuleStats, 0, len(nameToRule))
-	for _, ruleStat := range nameToRule {
-		executionTime, err := time.ParseDuration(ruleStat.ExecutionTime)
-		if err == nil {
-			policyAverageExecutionTime += executionTime
-		}
-		ruleStats = append(ruleStats, ruleStat)
-	}
-
-	sort.Slice(ruleStats, func(i, j int) bool {
-		return ruleStats[i].Name < ruleStats[j].Name
-	})
-
-	policyStatus.AvgExecutionTime = policyAverageExecutionTime.String()
-	policyStatus.Rules = ruleStats
-
-	ms.s.cache.data[ms.resp.PolicyResponse.Policy] = policyStatus
-	ms.s.cache.mutex.Unlock()
-}

pkg/policyStatus/validateStats.go

@@ -1,89 +0,0 @@
-package policyStatus
-
-import (
-	"reflect"
-	"sort"
-	"time"
-
-	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
-	"github.com/nirmata/kyverno/pkg/engine/response"
-)
-
-type validateStats struct {
-	s    *Sync
-	resp response.EngineResponse
-}
-
-func (s *Sync) UpdateStatusWithValidateStats(resp response.EngineResponse) {
-	s.listener <- &validateStats{
-		s:    s,
-		resp: resp,
-	}
-}
-
-func (vs *validateStats) updateStatus() {
-	if reflect.DeepEqual(response.EngineResponse{}, vs.resp) {
-		return
-	}
-
-	vs.s.cache.mutex.Lock()
-	policyStatus, exist := vs.s.cache.data[vs.resp.PolicyResponse.Policy]
-	if !exist {
-		if vs.s.policyStore != nil {
-			policy, _ := vs.s.policyStore.Get(vs.resp.PolicyResponse.Policy)
-			if policy != nil {
-				policyStatus = policy.Status
-			}
-		}
-	}
-
-	var nameToRule = make(map[string]v1.RuleStats)
-	for _, rule := range policyStatus.Rules {
-		nameToRule[rule.Name] = rule
-	}
-
-	for _, rule := range vs.resp.PolicyResponse.Rules {
-		ruleStat := nameToRule[rule.Name]
-		ruleStat.Name = rule.Name
-
-		averageOver := int64(ruleStat.AppliedCount + ruleStat.FailedCount)
-		ruleStat.ExecutionTime = updateAverageTime(
-			rule.ProcessingTime,
-			ruleStat.ExecutionTime,
-			averageOver).String()
-
-		if rule.Success {
-			policyStatus.RulesAppliedCount++
-			ruleStat.AppliedCount++
-		} else {
-			policyStatus.RulesFailedCount++
-			ruleStat.FailedCount++
-			if vs.resp.PolicyResponse.ValidationFailureAction == "enforce" {
-				policyStatus.ResourcesBlockedCount++
-				ruleStat.ResourcesBlockedCount++
-			}
-		}
-
-		nameToRule[rule.Name] = ruleStat
-	}
-
-	var policyAverageExecutionTime time.Duration
-	var ruleStats = make([]v1.RuleStats, 0, len(nameToRule))
-	for _, ruleStat := range nameToRule {
-		executionTime, err := time.ParseDuration(ruleStat.ExecutionTime)
-		if err == nil {
-			policyAverageExecutionTime += executionTime
-		}
-		ruleStats = append(ruleStats, ruleStat)
-	}
-
-	sort.Slice(ruleStats, func(i, j int) bool {
-		return ruleStats[i].Name < ruleStats[j].Name
-	})
-
-	policyStatus.AvgExecutionTime = policyAverageExecutionTime.String()
-	policyStatus.Rules = ruleStats
-
-	vs.s.cache.data[vs.resp.PolicyResponse.Policy] = policyStatus
-	vs.s.cache.mutex.Unlock()
-}

pkg/policyStatus/violationCount.go

@@ -1,41 +0,0 @@
-package policyStatus
-
-import v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
-
-type violationCount struct {
-	sync          *Sync
-	policyName    string
-	violatedRules []v1.ViolatedRule
-}
-
-func (s *Sync) UpdatePolicyStatusWithViolationCount(policyName string, violatedRules []v1.ViolatedRule) {
-	s.listener <- &violationCount{
-		sync:          s,
-		policyName:    policyName,
-		violatedRules: violatedRules,
-	}
-}
-
-func (vc *violationCount) updateStatus() {
-	vc.sync.cache.mutex.Lock()
-	status, exist := vc.sync.cache.data[vc.policyName]
-	if !exist {
-		policy, _ := vc.sync.policyStore.Get(vc.policyName)
-		if policy != nil {
-			status = policy.Status
-		}
-	}
-
-	var ruleNameToViolations = make(map[string]int)
-	for _, rule := range vc.violatedRules {
-		ruleNameToViolations[rule.Name]++
-	}
-
-	for i := range status.Rules {
-		status.ViolationCount += ruleNameToViolations[status.Rules[i].Name]
-		status.Rules[i].ViolationCount += ruleNameToViolations[status.Rules[i].Name]
-	}
-
-	vc.sync.cache.data[vc.policyName] = status
-	vc.sync.cache.mutex.Unlock()
-}

pkg/policyviolation/clusterpv.go

@@ -100,7 +100,9 @@ func (cpv *clusterPV) createPV(newPv *kyverno.ClusterPolicyViolation) error {
 	}
 
 	if newPv.Annotations["fromSync"] != "true" {
-		go cpv.policyStatus.UpdatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		go func() {
+			cpv.policyStatus.Listener <- updatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		}()
 	}
 
 	glog.Infof("policy violation created for resource %v", newPv.Spec.ResourceSpec)
@@ -126,7 +128,9 @@ func (cpv *clusterPV) updatePV(newPv, oldPv *kyverno.ClusterPolicyViolation) err
 	glog.Infof("cluster policy violation updated for resource %v", newPv.Spec.ResourceSpec)
 
 	if newPv.Annotations["fromSync"] != "true" {
-		go cpv.policyStatus.UpdatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		go func() {
+			cpv.policyStatus.Listener <- updatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		}()
 	}
 	return nil
 }

pkg/policyviolation/common.go

@@ -4,9 +4,12 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/nirmata/kyverno/pkg/policyStatus"
+
 	backoff "github.com/cenkalti/backoff"
 	"github.com/golang/glog"
 	kyverno "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
+	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
 	client "github.com/nirmata/kyverno/pkg/dclient"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	unstructured "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
@@ -70,3 +73,39 @@ func converLabelToSelector(labelMap map[string]string) (labels.Selector, error)
 
 	return policyViolationSelector, nil
 }
+
+type violationCount struct {
+	policyName    string
+	violatedRules []v1.ViolatedRule
+}
+
+func updatePolicyStatusWithViolationCount(policyName string, violatedRules []kyverno.ViolatedRule) *violationCount {
+	return &violationCount{
+		policyName:    policyName,
+		violatedRules: violatedRules,
+	}
+}
+
+func (vc *violationCount) UpdateStatus(s *policyStatus.Sync) {
+	s.Cache.Mutex.Lock()
+	status, exist := s.Cache.Data[vc.policyName]
+	if !exist {
+		policy, _ := s.PolicyStore.Get(vc.policyName)
+		if policy != nil {
+			status = policy.Status
+		}
+	}
+
+	var ruleNameToViolations = make(map[string]int)
+	for _, rule := range vc.violatedRules {
+		ruleNameToViolations[rule.Name]++
+	}
+
+	for i := range status.Rules {
+		status.ViolationCount += ruleNameToViolations[status.Rules[i].Name]
+		status.Rules[i].ViolationCount += ruleNameToViolations[status.Rules[i].Name]
+	}
+
+	s.Cache.Data[vc.policyName] = status
+	s.Cache.Mutex.Unlock()
+}

pkg/policyviolation/namespacedpv.go

@@ -99,7 +99,9 @@ func (nspv *namespacedPV) createPV(newPv *kyverno.PolicyViolation) error {
 	}
 
 	if newPv.Annotations["fromSync"] != "true" {
-		go nspv.policyStatus.UpdatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		go func() {
+			nspv.policyStatus.Listener <- updatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		}()
 	}
 	glog.Infof("policy violation created for resource %v", newPv.Spec.ResourceSpec)
 	return nil
@@ -122,7 +124,9 @@ func (nspv *namespacedPV) updatePV(newPv, oldPv *kyverno.PolicyViolation) error
 	}
 
 	if newPv.Annotations["fromSync"] != "true" {
-		go nspv.policyStatus.UpdatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		go func() {
+			nspv.policyStatus.Listener <- updatePolicyStatusWithViolationCount(newPv.Spec.Policy, newPv.Spec.ViolatedRules)
+		}()
 	}
 	glog.Infof("namespaced policy violation updated for resource %v", newPv.Spec.ResourceSpec)
 	return nil

pkg/policyviolation/policyStatus_test.go

@@ -0,0 +1,74 @@
+package policyviolation
+
+import (
+	"encoding/json"
+	"reflect"
+	"testing"
+
+	"github.com/nirmata/kyverno/pkg/policyStatus"
+
+	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
+)
+
+type dummyStore struct {
+}
+
+func (d *dummyStore) Get(policyName string) (*v1.ClusterPolicy, error) {
+	return &v1.ClusterPolicy{
+		Status: v1.PolicyStatus{
+			Rules: []v1.RuleStats{
+				{
+					Name: "rule4",
+				},
+			},
+		},
+	}, nil
+}
+
+func Test_Stats(t *testing.T) {
+	testCase := struct {
+		violationCountStats []struct {
+			policyName    string
+			violatedRules []v1.ViolatedRule
+		}
+		expectedOutput []byte
+	}{
+		expectedOutput: []byte(`{"policy1":{"averageExecutionTime":"","violationCount":1,"ruleStatus":[{"ruleName":"rule4","violationCount":1}]},"policy2":{"averageExecutionTime":"","violationCount":1,"ruleStatus":[{"ruleName":"rule4","violationCount":1}]}}`),
+		violationCountStats: []struct {
+			policyName    string
+			violatedRules []v1.ViolatedRule
+		}{
+			{
+				policyName: "policy1",
+				violatedRules: []v1.ViolatedRule{
+					{
+						Name: "rule4",
+					},
+				},
+			},
+			{
+				policyName: "policy2",
+				violatedRules: []v1.ViolatedRule{
+					{
+						Name: "rule4",
+					},
+				},
+			},
+		},
+	}
+
+	s := policyStatus.NewSync(nil, &dummyStore{})
+
+	for _, violationCountStat := range testCase.violationCountStats {
+		receiver := &violationCount{
+			policyName:    violationCountStat.policyName,
+			violatedRules: violationCountStat.violatedRules,
+		}
+		receiver.UpdateStatus(s)
+	}
+
+	output, _ := json.Marshal(s.Cache.Data)
+	if !reflect.DeepEqual(output, testCase.expectedOutput) {
+		t.Errorf("\n\nTestcase has failed\nExpected:\n%v\nGot:\n%v\n\n", string(testCase.expectedOutput), string(output))
+	}
+}

pkg/webhooks/generation.go

@@ -1,8 +1,15 @@
 package webhooks
 
 import (
+	"reflect"
+	"sort"
+	"time"
+
+	"github.com/nirmata/kyverno/pkg/policyStatus"
+
 	"github.com/golang/glog"
 	kyverno "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
+	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
 	"github.com/nirmata/kyverno/pkg/engine"
 	"github.com/nirmata/kyverno/pkg/engine/context"
 	"github.com/nirmata/kyverno/pkg/engine/response"
@@ -61,7 +68,9 @@ func (ws *WebhookServer) HandleGenerate(request *v1beta1.AdmissionRequest, polic
 		if len(engineResponse.PolicyResponse.Rules) > 0 {
 			// some generate rules do apply to the resource
 			engineResponses = append(engineResponses, engineResponse)
-			go ws.status.UpdateStatusWithGenerateStats(engineResponse)
+			go func() {
+				ws.status.Listener <- updateStatusWithGenerateStats(engineResponse)
+			}()
 		}
 	}
 	// Adds Generate Request to a channel(queue size 1000) to generators
@@ -103,3 +112,87 @@ func transform(userRequestInfo kyverno.RequestInfo, er response.EngineResponse)
 	}
 	return gr
 }
+
+type generateStats struct {
+	resp response.EngineResponse
+}
+
+func updateStatusWithGenerateStats(resp response.EngineResponse) *generateStats {
+	return &generateStats{
+		resp: resp,
+	}
+}
+
+func (gs *generateStats) UpdateStatus(s *policyStatus.Sync) {
+	if reflect.DeepEqual(response.EngineResponse{}, gs.resp) {
+		return
+	}
+
+	s.Cache.Mutex.Lock()
+	status, exist := s.Cache.Data[gs.resp.PolicyResponse.Policy]
+	if !exist {
+		if s.PolicyStore != nil {
+			policy, _ := s.PolicyStore.Get(gs.resp.PolicyResponse.Policy)
+			if policy != nil {
+				status = policy.Status
+			}
+		}
+	}
+
+	var nameToRule = make(map[string]v1.RuleStats)
+	for _, rule := range status.Rules {
+		nameToRule[rule.Name] = rule
+	}
+
+	for _, rule := range gs.resp.PolicyResponse.Rules {
+		ruleStat := nameToRule[rule.Name]
+		ruleStat.Name = rule.Name
+
+		averageOver := int64(ruleStat.AppliedCount + ruleStat.FailedCount)
+		ruleStat.ExecutionTime = updateAverageTime(
+			rule.ProcessingTime,
+			ruleStat.ExecutionTime,
+			averageOver).String()
+
+		if rule.Success {
+			status.RulesAppliedCount++
+			ruleStat.AppliedCount++
+		} else {
+			status.RulesFailedCount++
+			ruleStat.FailedCount++
+		}
+
+		nameToRule[rule.Name] = ruleStat
+	}
+
+	var policyAverageExecutionTime time.Duration
+	var ruleStats = make([]v1.RuleStats, 0, len(nameToRule))
+	for _, ruleStat := range nameToRule {
+		executionTime, err := time.ParseDuration(ruleStat.ExecutionTime)
+		if err == nil {
+			policyAverageExecutionTime += executionTime
+		}
+		ruleStats = append(ruleStats, ruleStat)
+	}
+
+	sort.Slice(ruleStats, func(i, j int) bool {
+		return ruleStats[i].Name < ruleStats[j].Name
+	})
+
+	status.AvgExecutionTime = policyAverageExecutionTime.String()
+	status.Rules = ruleStats
+
+	s.Cache.Data[gs.resp.PolicyResponse.Policy] = status
+	s.Cache.Mutex.Unlock()
+}
+
+func updateAverageTime(newTime time.Duration, oldAverageTimeString string, averageOver int64) time.Duration {
+	if averageOver == 0 {
+		return newTime
+	}
+	oldAverageExecutionTime, _ := time.ParseDuration(oldAverageTimeString)
+	numerator := (oldAverageExecutionTime.Nanoseconds() * averageOver) + newTime.Nanoseconds()
+	denominator := averageOver + 1
+	newAverageTimeInNanoSeconds := numerator / denominator
+	return time.Duration(newAverageTimeInNanoSeconds) * time.Nanosecond
+}

pkg/webhooks/mutation.go

@@ -1,10 +1,15 @@
 package webhooks
 
 import (
+	"reflect"
+	"sort"
 	"time"
 
+	"github.com/nirmata/kyverno/pkg/policyStatus"
+
 	"github.com/golang/glog"
 	kyverno "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
+	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
 	"github.com/nirmata/kyverno/pkg/engine"
 	"github.com/nirmata/kyverno/pkg/engine/context"
 	"github.com/nirmata/kyverno/pkg/engine/response"
@@ -58,7 +63,9 @@ func (ws *WebhookServer) HandleMutation(request *v1beta1.AdmissionRequest, resou
 		policyContext.Policy = policy
 		engineResponse := engine.Mutate(policyContext)
 		engineResponses = append(engineResponses, engineResponse)
-		go ws.status.UpdateStatusWithMutateStats(engineResponse)
+		go func() {
+			ws.status.Listener <- updateStatusWithMutateStats(engineResponse)
+		}()
 		if !engineResponse.IsSuccesful() {
 			glog.V(4).Infof("Failed to apply policy %s on resource %s/%s\n", policy.Name, resource.GetNamespace(), resource.GetName())
 			continue
@@ -106,3 +113,79 @@ func (ws *WebhookServer) HandleMutation(request *v1beta1.AdmissionRequest, resou
 	// patches holds all the successful patches, if no patch is created, it returns nil
 	return engineutils.JoinPatches(patches)
 }
+
+type mutateStats struct {
+	resp response.EngineResponse
+}
+
+func updateStatusWithMutateStats(resp response.EngineResponse) *mutateStats {
+	return &mutateStats{
+		resp: resp,
+	}
+
+}
+
+func (ms *mutateStats) UpdateStatus(s *policyStatus.Sync) {
+	if reflect.DeepEqual(response.EngineResponse{}, ms.resp) {
+		return
+	}
+
+	s.Cache.Mutex.Lock()
+	status, exist := s.Cache.Data[ms.resp.PolicyResponse.Policy]
+	if !exist {
+		if s.PolicyStore != nil {
+			policy, _ := s.PolicyStore.Get(ms.resp.PolicyResponse.Policy)
+			if policy != nil {
+				status = policy.Status
+			}
+		}
+	}
+
+	var nameToRule = make(map[string]v1.RuleStats)
+	for _, rule := range status.Rules {
+		nameToRule[rule.Name] = rule
+	}
+
+	for _, rule := range ms.resp.PolicyResponse.Rules {
+		ruleStat := nameToRule[rule.Name]
+		ruleStat.Name = rule.Name
+
+		averageOver := int64(ruleStat.AppliedCount + ruleStat.FailedCount)
+		ruleStat.ExecutionTime = updateAverageTime(
+			rule.ProcessingTime,
+			ruleStat.ExecutionTime,
+			averageOver).String()
+
+		if rule.Success {
+			status.RulesAppliedCount++
+			status.ResourcesMutatedCount++
+			ruleStat.AppliedCount++
+			ruleStat.ResourcesMutatedCount++
+		} else {
+			status.RulesFailedCount++
+			ruleStat.FailedCount++
+		}
+
+		nameToRule[rule.Name] = ruleStat
+	}
+
+	var policyAverageExecutionTime time.Duration
+	var ruleStats = make([]v1.RuleStats, 0, len(nameToRule))
+	for _, ruleStat := range nameToRule {
+		executionTime, err := time.ParseDuration(ruleStat.ExecutionTime)
+		if err == nil {
+			policyAverageExecutionTime += executionTime
+		}
+		ruleStats = append(ruleStats, ruleStat)
+	}
+
+	sort.Slice(ruleStats, func(i, j int) bool {
+		return ruleStats[i].Name < ruleStats[j].Name
+	})
+
+	status.AvgExecutionTime = policyAverageExecutionTime.String()
+	status.Rules = ruleStats
+
+	s.Cache.Data[ms.resp.PolicyResponse.Policy] = status
+	s.Cache.Mutex.Unlock()
+}

pkg/webhooks/policyStatus_test.go

@@ -1,4 +1,4 @@
-package policyStatus
+package webhooks
 
 import (
 	"encoding/json"
@@ -7,151 +7,23 @@ import (
 	"time"
 
 	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
-
 	"github.com/nirmata/kyverno/pkg/engine/response"
+	"github.com/nirmata/kyverno/pkg/policyStatus"
 )
 
-func Test_Stats(t *testing.T) {
+type dummyStore struct {
+}
+
+func (d *dummyStore) Get(policyName string) (*v1.ClusterPolicy, error) {
+	return &v1.ClusterPolicy{}, nil
+}
+
+func Test_GenerateStats(t *testing.T) {
 	testCase := struct {
-		mutateStats         []response.EngineResponse
-		validateStats       []response.EngineResponse
-		generateStats       []response.EngineResponse
-		violationCountStats []struct {
-			policyName    string
-			violatedRules []v1.ViolatedRule
-		}
-		generatedCountStats []v1.GenerateRequest
-		expectedOutput      []byte
+		generateStats  []response.EngineResponse
+		expectedOutput []byte
 	}{
-		expectedOutput: []byte(`{"policy1":{"averageExecutionTime":"1.482µs","violationCount":1,"rulesFailedCount":3,"rulesAppliedCount":3,"resourcesBlockedCount":1,"resourcesMutatedCount":1,"resourcesGeneratedCount":1,"ruleStatus":[{"ruleName":"rule1","averageExecutionTime":"243ns","appliedCount":1,"resourcesMutatedCount":1},{"ruleName":"rule2","averageExecutionTime":"251ns","failedCount":1},{"ruleName":"rule3","averageExecutionTime":"243ns","appliedCount":1},{"ruleName":"rule4","averageExecutionTime":"251ns","violationCount":1,"failedCount":1,"resourcesBlockedCount":1},{"ruleName":"rule5","averageExecutionTime":"243ns","appliedCount":1},{"ruleName":"rule6","averageExecutionTime":"251ns","failedCount":1}]},"policy2":{"averageExecutionTime":"1.299µs","violationCount":1,"rulesFailedCount":3,"rulesAppliedCount":3,"resourcesMutatedCount":1,"resourcesGeneratedCount":1,"ruleStatus":[{"ruleName":"rule1","averageExecutionTime":"222ns","appliedCount":1,"resourcesMutatedCount":1},{"ruleName":"rule2","averageExecutionTime":"211ns","failedCount":1},{"ruleName":"rule3","averageExecutionTime":"222ns","appliedCount":1},{"ruleName":"rule4","averageExecutionTime":"211ns","violationCount":1,"failedCount":1},{"ruleName":"rule5","averageExecutionTime":"222ns","appliedCount":1},{"ruleName":"rule6","averageExecutionTime":"211ns","failedCount":1}]}}`),
-		generatedCountStats: []v1.GenerateRequest{
-			{
-				Spec: v1.GenerateRequestSpec{
-					Policy: "policy1",
-				},
-				Status: v1.GenerateRequestStatus{
-					GeneratedResources: make([]v1.ResourceSpec, 1),
-				},
-			},
-			{
-				Spec: v1.GenerateRequestSpec{
-					Policy: "policy2",
-				},
-				Status: v1.GenerateRequestStatus{
-					GeneratedResources: make([]v1.ResourceSpec, 1),
-				},
-			},
-		},
-		violationCountStats: []struct {
-			policyName    string
-			violatedRules []v1.ViolatedRule
-		}{
-			{
-				policyName: "policy1",
-				violatedRules: []v1.ViolatedRule{
-					{
-						Name: "rule4",
-					},
-				},
-			},
-			{
-				policyName: "policy2",
-				violatedRules: []v1.ViolatedRule{
-					{
-						Name: "rule4",
-					},
-				},
-			},
-		},
-		mutateStats: []response.EngineResponse{
-			{
-				PolicyResponse: response.PolicyResponse{
-					Policy: "policy1",
-					Rules: []response.RuleResponse{
-						{
-							Name:    "rule1",
-							Success: true,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 243,
-							},
-						},
-						{
-							Name:    "rule2",
-							Success: false,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 251,
-							},
-						},
-					},
-				},
-			},
-			{
-				PolicyResponse: response.PolicyResponse{
-					Policy: "policy2",
-					Rules: []response.RuleResponse{
-						{
-							Name:    "rule1",
-							Success: true,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 222,
-							},
-						},
-						{
-							Name:    "rule2",
-							Success: false,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 211,
-							},
-						},
-					},
-				},
-			},
-		},
-		validateStats: []response.EngineResponse{
-			{
-				PolicyResponse: response.PolicyResponse{
-					Policy:                  "policy1",
-					ValidationFailureAction: "enforce",
-					Rules: []response.RuleResponse{
-						{
-							Name:    "rule3",
-							Success: true,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 243,
-							},
-						},
-						{
-							Name:    "rule4",
-							Success: false,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 251,
-							},
-						},
-					},
-				},
-			},
-			{
-				PolicyResponse: response.PolicyResponse{
-					Policy: "policy2",
-					Rules: []response.RuleResponse{
-						{
-							Name:    "rule3",
-							Success: true,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 222,
-							},
-						},
-						{
-							Name:    "rule4",
-							Success: false,
-							RuleStats: response.RuleStats{
-								ProcessingTime: time.Nanosecond * 211,
-							},
-						},
-					},
-				},
-			},
-		},
+		expectedOutput: []byte(`{"policy1":{"averageExecutionTime":"494ns","rulesFailedCount":1,"rulesAppliedCount":1,"ruleStatus":[{"ruleName":"rule5","averageExecutionTime":"243ns","appliedCount":1},{"ruleName":"rule6","averageExecutionTime":"251ns","failedCount":1}]},"policy2":{"averageExecutionTime":"433ns","rulesFailedCount":1,"rulesAppliedCount":1,"ruleStatus":[{"ruleName":"rule5","averageExecutionTime":"222ns","appliedCount":1},{"ruleName":"rule6","averageExecutionTime":"211ns","failedCount":1}]}}`),
 		generateStats: []response.EngineResponse{
 			{
 				PolicyResponse: response.PolicyResponse{
@@ -198,49 +70,149 @@ func Test_Stats(t *testing.T) {
 		},
 	}
 
-	s := NewSync(nil, nil, nil)
-	for _, mutateStat := range testCase.mutateStats {
-		receiver := &mutateStats{
-			s:    s,
-			resp: mutateStat,
-		}
-		receiver.updateStatus()
-	}
-
-	for _, validateStat := range testCase.validateStats {
-		receiver := &validateStats{
-			s:    s,
-			resp: validateStat,
-		}
-		receiver.updateStatus()
-	}
+	s := policyStatus.NewSync(nil, &dummyStore{})
 
 	for _, generateStat := range testCase.generateStats {
 		receiver := &generateStats{
-			s:    s,
 			resp: generateStat,
 		}
-		receiver.updateStatus()
+		receiver.UpdateStatus(s)
 	}
 
-	for _, generateCountStat := range testCase.generatedCountStats {
-		receiver := &generatedResourceCount{
-			sync:            s,
-			generateRequest: generateCountStat,
-		}
-		receiver.updateStatus()
-	}
-
-	for _, violationCountStat := range testCase.violationCountStats {
-		receiver := &violationCount{
-			sync:          s,
-			policyName:    violationCountStat.policyName,
-			violatedRules: violationCountStat.violatedRules,
-		}
-		receiver.updateStatus()
-	}
-
-	output, _ := json.Marshal(s.cache.data)
+	output, _ := json.Marshal(s.Cache.Data)
+	if !reflect.DeepEqual(output, testCase.expectedOutput) {
+		t.Errorf("\n\nTestcase has failed\nExpected:\n%v\nGot:\n%v\n\n", string(testCase.expectedOutput), string(output))
+	}
+}
+
+func Test_MutateStats(t *testing.T) {
+	testCase := struct {
+		mutateStats    []response.EngineResponse
+		expectedOutput []byte
+	}{
+		expectedOutput: []byte(`{"policy1":{"averageExecutionTime":"494ns","rulesFailedCount":1,"rulesAppliedCount":1,"resourcesMutatedCount":1,"ruleStatus":[{"ruleName":"rule1","averageExecutionTime":"243ns","appliedCount":1,"resourcesMutatedCount":1},{"ruleName":"rule2","averageExecutionTime":"251ns","failedCount":1}]},"policy2":{"averageExecutionTime":"433ns","rulesFailedCount":1,"rulesAppliedCount":1,"resourcesMutatedCount":1,"ruleStatus":[{"ruleName":"rule1","averageExecutionTime":"222ns","appliedCount":1,"resourcesMutatedCount":1},{"ruleName":"rule2","averageExecutionTime":"211ns","failedCount":1}]}}`),
+		mutateStats: []response.EngineResponse{
+			{
+				PolicyResponse: response.PolicyResponse{
+					Policy: "policy1",
+					Rules: []response.RuleResponse{
+						{
+							Name:    "rule1",
+							Success: true,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 243,
+							},
+						},
+						{
+							Name:    "rule2",
+							Success: false,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 251,
+							},
+						},
+					},
+				},
+			},
+			{
+				PolicyResponse: response.PolicyResponse{
+					Policy: "policy2",
+					Rules: []response.RuleResponse{
+						{
+							Name:    "rule1",
+							Success: true,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 222,
+							},
+						},
+						{
+							Name:    "rule2",
+							Success: false,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 211,
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	s := policyStatus.NewSync(nil, &dummyStore{})
+	for _, mutateStat := range testCase.mutateStats {
+		receiver := &mutateStats{
+			resp: mutateStat,
+		}
+		receiver.UpdateStatus(s)
+	}
+
+	output, _ := json.Marshal(s.Cache.Data)
+	if !reflect.DeepEqual(output, testCase.expectedOutput) {
+		t.Errorf("\n\nTestcase has failed\nExpected:\n%v\nGot:\n%v\n\n", string(testCase.expectedOutput), string(output))
+	}
+}
+
+func Test_ValidateStats(t *testing.T) {
+	testCase := struct {
+		validateStats  []response.EngineResponse
+		expectedOutput []byte
+	}{
+		expectedOutput: []byte(`{"policy1":{"averageExecutionTime":"494ns","rulesFailedCount":1,"rulesAppliedCount":1,"resourcesBlockedCount":1,"ruleStatus":[{"ruleName":"rule3","averageExecutionTime":"243ns","appliedCount":1},{"ruleName":"rule4","averageExecutionTime":"251ns","failedCount":1,"resourcesBlockedCount":1}]},"policy2":{"averageExecutionTime":"433ns","rulesFailedCount":1,"rulesAppliedCount":1,"ruleStatus":[{"ruleName":"rule3","averageExecutionTime":"222ns","appliedCount":1},{"ruleName":"rule4","averageExecutionTime":"211ns","failedCount":1}]}}`),
+		validateStats: []response.EngineResponse{
+			{
+				PolicyResponse: response.PolicyResponse{
+					Policy:                  "policy1",
+					ValidationFailureAction: "enforce",
+					Rules: []response.RuleResponse{
+						{
+							Name:    "rule3",
+							Success: true,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 243,
+							},
+						},
+						{
+							Name:    "rule4",
+							Success: false,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 251,
+							},
+						},
+					},
+				},
+			},
+			{
+				PolicyResponse: response.PolicyResponse{
+					Policy: "policy2",
+					Rules: []response.RuleResponse{
+						{
+							Name:    "rule3",
+							Success: true,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 222,
+							},
+						},
+						{
+							Name:    "rule4",
+							Success: false,
+							RuleStats: response.RuleStats{
+								ProcessingTime: time.Nanosecond * 211,
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	s := policyStatus.NewSync(nil, &dummyStore{})
+	for _, validateStat := range testCase.validateStats {
+		receiver := &validateStats{
+			resp: validateStat,
+		}
+		receiver.UpdateStatus(s)
+	}
+
+	output, _ := json.Marshal(s.Cache.Data)
 	if !reflect.DeepEqual(output, testCase.expectedOutput) {
 		t.Errorf("\n\nTestcase has failed\nExpected:\n%v\nGot:\n%v\n\n", string(testCase.expectedOutput), string(output))
 	}

pkg/webhooks/validation.go

@@ -2,10 +2,14 @@ package webhooks
 
 import (
 	"reflect"
+	"sort"
 	"time"
 
+	"github.com/nirmata/kyverno/pkg/policyStatus"
+
 	"github.com/golang/glog"
 	kyverno "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
+	v1 "github.com/nirmata/kyverno/pkg/api/kyverno/v1"
 	"github.com/nirmata/kyverno/pkg/engine"
 	"github.com/nirmata/kyverno/pkg/engine/context"
 	"github.com/nirmata/kyverno/pkg/engine/response"
@@ -69,7 +73,9 @@ func (ws *WebhookServer) HandleValidation(request *v1beta1.AdmissionRequest, pol
 			continue
 		}
 		engineResponses = append(engineResponses, engineResponse)
-		go ws.status.UpdateStatusWithValidateStats(engineResponse)
+		go func() {
+			ws.status.Listener <- updateStatusWithValidateStats(engineResponse)
+		}()
 		if !engineResponse.IsSuccesful() {
 			glog.V(4).Infof("Failed to apply policy %s on resource %s/%s\n", policy.Name, newR.GetNamespace(), newR.GetName())
 			continue
@@ -99,3 +105,80 @@ func (ws *WebhookServer) HandleValidation(request *v1beta1.AdmissionRequest, pol
 	glog.V(4).Infof("report: %v %s/%s/%s", time.Since(reportTime), request.Kind, request.Namespace, request.Name)
 	return true, ""
 }
+
+type validateStats struct {
+	resp response.EngineResponse
+}
+
+func updateStatusWithValidateStats(resp response.EngineResponse) *validateStats {
+	return &validateStats{
+		resp: resp,
+	}
+}
+
+func (vs *validateStats) UpdateStatus(s *policyStatus.Sync) {
+	if reflect.DeepEqual(response.EngineResponse{}, vs.resp) {
+		return
+	}
+
+	s.Cache.Mutex.Lock()
+	status, exist := s.Cache.Data[vs.resp.PolicyResponse.Policy]
+	if !exist {
+		if s.PolicyStore != nil {
+			policy, _ := s.PolicyStore.Get(vs.resp.PolicyResponse.Policy)
+			if policy != nil {
+				status = policy.Status
+			}
+		}
+	}
+
+	var nameToRule = make(map[string]v1.RuleStats)
+	for _, rule := range status.Rules {
+		nameToRule[rule.Name] = rule
+	}
+
+	for _, rule := range vs.resp.PolicyResponse.Rules {
+		ruleStat := nameToRule[rule.Name]
+		ruleStat.Name = rule.Name
+
+		averageOver := int64(ruleStat.AppliedCount + ruleStat.FailedCount)
+		ruleStat.ExecutionTime = updateAverageTime(
+			rule.ProcessingTime,
+			ruleStat.ExecutionTime,
+			averageOver).String()
+
+		if rule.Success {
+			status.RulesAppliedCount++
+			ruleStat.AppliedCount++
+		} else {
+			status.RulesFailedCount++
+			ruleStat.FailedCount++
+			if vs.resp.PolicyResponse.ValidationFailureAction == "enforce" {
+				status.ResourcesBlockedCount++
+				ruleStat.ResourcesBlockedCount++
+			}
+		}
+
+		nameToRule[rule.Name] = ruleStat
+	}
+
+	var policyAverageExecutionTime time.Duration
+	var ruleStats = make([]v1.RuleStats, 0, len(nameToRule))
+	for _, ruleStat := range nameToRule {
+		executionTime, err := time.ParseDuration(ruleStat.ExecutionTime)
+		if err == nil {
+			policyAverageExecutionTime += executionTime
+		}
+		ruleStats = append(ruleStats, ruleStat)
+	}
+
+	sort.Slice(ruleStats, func(i, j int) bool {
+		return ruleStats[i].Name < ruleStats[j].Name
+	})
+
+	status.AvgExecutionTime = policyAverageExecutionTime.String()
+	status.Rules = ruleStats
+
+	s.Cache.Data[vs.resp.PolicyResponse.Policy] = status
+	s.Cache.Mutex.Unlock()
+}