mirror of https://github.com/k3s-io/k3s
146 lines
4.0 KiB
Go
146 lines
4.0 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package util
|
|
|
|
import (
|
|
"encoding/json"
|
|
"hash/adler32"
|
|
"strconv"
|
|
"strings"
|
|
"testing"
|
|
|
|
"k8s.io/api/core/v1"
|
|
"k8s.io/kubernetes/pkg/controller"
|
|
hashutil "k8s.io/kubernetes/pkg/util/hash"
|
|
)
|
|
|
|
var podSpec string = `
|
|
{
|
|
"metadata": {
|
|
"creationTimestamp": null,
|
|
"labels": {
|
|
"app": "cats"
|
|
}
|
|
},
|
|
"spec": {
|
|
"containers": [
|
|
{
|
|
"name": "cats",
|
|
"image": "registry/test/cats:v0.@@VERSION@@.0",
|
|
"ports": [
|
|
{
|
|
"name": "http",
|
|
"containerPort": 9077,
|
|
"protocol": "TCP"
|
|
}
|
|
],
|
|
"env": [
|
|
{
|
|
"name": "DEPLOYMENT_ENVIRONMENT",
|
|
"value": "cats-stubbed-functional"
|
|
},
|
|
{
|
|
"name": "APP_NAME",
|
|
"value": "cats"
|
|
}
|
|
],
|
|
"resources": {
|
|
"limits": {
|
|
"cpu": "1",
|
|
"memory": "1Gi"
|
|
},
|
|
"requests": {
|
|
"cpu": "1",
|
|
"memory": "1Gi"
|
|
}
|
|
},
|
|
"livenessProbe": {
|
|
"httpGet": {
|
|
"path": "/private/status",
|
|
"port": 9077,
|
|
"scheme": "HTTP"
|
|
},
|
|
"initialDelaySeconds": 30,
|
|
"timeoutSeconds": 1,
|
|
"periodSeconds": 10,
|
|
"successThreshold": 1,
|
|
"failureThreshold": 3
|
|
},
|
|
"readinessProbe": {
|
|
"httpGet": {
|
|
"path": "/private/status",
|
|
"port": 9077,
|
|
"scheme": "HTTP"
|
|
},
|
|
"initialDelaySeconds": 1,
|
|
"timeoutSeconds": 1,
|
|
"periodSeconds": 10,
|
|
"successThreshold": 1,
|
|
"failureThreshold": 3
|
|
},
|
|
"terminationMessagePath": "/dev/termination-log",
|
|
"imagePullPolicy": "IfNotPresent"
|
|
}
|
|
],
|
|
"restartPolicy": "Always",
|
|
"terminationGracePeriodSeconds": 30,
|
|
"dnsPolicy": "ClusterFirst",
|
|
"securityContext": {}
|
|
}
|
|
}
|
|
`
|
|
|
|
func TestPodTemplateSpecHash(t *testing.T) {
|
|
seenHashes := make(map[uint32]int)
|
|
|
|
for i := 0; i < 1000; i++ {
|
|
specJson := strings.Replace(podSpec, "@@VERSION@@", strconv.Itoa(i), 1)
|
|
spec := v1.PodTemplateSpec{}
|
|
json.Unmarshal([]byte(specJson), &spec)
|
|
hash := controller.ComputeHash(&spec, nil)
|
|
if v, ok := seenHashes[hash]; ok {
|
|
t.Errorf("Hash collision, old: %d new: %d", v, i)
|
|
break
|
|
}
|
|
seenHashes[hash] = i
|
|
}
|
|
}
|
|
|
|
func BenchmarkAdler(b *testing.B) {
|
|
spec := v1.PodTemplateSpec{}
|
|
json.Unmarshal([]byte(podSpec), &spec)
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
getPodTemplateSpecOldHash(spec)
|
|
}
|
|
}
|
|
|
|
func getPodTemplateSpecOldHash(template v1.PodTemplateSpec) uint32 {
|
|
podTemplateSpecHasher := adler32.New()
|
|
hashutil.DeepHashObject(podTemplateSpecHasher, template)
|
|
return podTemplateSpecHasher.Sum32()
|
|
}
|
|
|
|
func BenchmarkFnv(b *testing.B) {
|
|
spec := v1.PodTemplateSpec{}
|
|
json.Unmarshal([]byte(podSpec), &spec)
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
controller.ComputeHash(&spec, nil)
|
|
}
|
|
}
|