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strategy_test.go
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strategy_test.go
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/*
Copyright 2014 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 service
import (
"reflect"
"testing"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/diff"
"k8s.io/apimachinery/pkg/util/intstr"
genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
api "k8s.io/kubernetes/pkg/apis/core"
_ "k8s.io/kubernetes/pkg/apis/core/install"
utilfeature "k8s.io/apiserver/pkg/util/feature"
featuregatetesting "k8s.io/component-base/featuregate/testing"
"k8s.io/kubernetes/pkg/features"
netutils "k8s.io/utils/net"
utilpointer "k8s.io/utils/pointer"
)
func newStrategy(cidr string, hasSecondary bool) (testStrategy Strategy, testStatusStrategy Strategy) {
_, testCIDR, err := netutils.ParseCIDRSloppy(cidr)
if err != nil {
panic("invalid CIDR")
}
testStrategy, _ = StrategyForServiceCIDRs(*testCIDR, hasSecondary)
testStatusStrategy = NewServiceStatusStrategy(testStrategy)
return
}
func TestCheckGeneratedNameError(t *testing.T) {
ctx := genericapirequest.WithRequestInfo(genericapirequest.NewContext(), &genericapirequest.RequestInfo{
Resource: "foos",
})
testStrategy, _ := newStrategy("10.0.0.0/16", false)
expect := errors.NewNotFound(api.Resource("foos"), "bar")
if err := rest.CheckGeneratedNameError(ctx, testStrategy, expect, &api.Service{}); err != expect {
t.Errorf("NotFoundError should be ignored: %v", err)
}
expect = errors.NewAlreadyExists(api.Resource("foos"), "bar")
if err := rest.CheckGeneratedNameError(ctx, testStrategy, expect, &api.Service{}); err != expect {
t.Errorf("AlreadyExists should be returned when no GenerateName field: %v", err)
}
expect = errors.NewAlreadyExists(api.Resource("foos"), "bar")
if err := rest.CheckGeneratedNameError(ctx, testStrategy, expect, &api.Service{ObjectMeta: metav1.ObjectMeta{GenerateName: "foo"}}); err == nil || !errors.IsAlreadyExists(err) {
t.Errorf("expected try again later error: %v", err)
}
}
func makeValidService() *api.Service {
preferDual := api.IPFamilyPolicyPreferDualStack
clusterInternalTrafficPolicy := api.ServiceInternalTrafficPolicyCluster
return &api.Service{
ObjectMeta: metav1.ObjectMeta{
Name: "valid",
Namespace: "default",
Labels: map[string]string{},
Annotations: map[string]string{},
ResourceVersion: "1",
},
Spec: api.ServiceSpec{
Selector: map[string]string{"key": "val"},
SessionAffinity: "None",
Type: api.ServiceTypeClusterIP,
Ports: []api.ServicePort{
makeValidServicePort("p", "TCP", 8675),
makeValidServicePort("q", "TCP", 309),
},
ClusterIP: "1.2.3.4",
ClusterIPs: []string{"1.2.3.4", "5:6:7::8"},
IPFamilyPolicy: &preferDual,
IPFamilies: []api.IPFamily{"IPv4", "IPv6"},
InternalTrafficPolicy: &clusterInternalTrafficPolicy,
},
}
}
func makeValidServicePort(name string, proto api.Protocol, port int32) api.ServicePort {
return api.ServicePort{
Name: name,
Protocol: proto,
Port: port,
TargetPort: intstr.FromInt(int(port)),
}
}
func makeValidServiceCustom(tweaks ...func(svc *api.Service)) *api.Service {
svc := makeValidService()
for _, fn := range tweaks {
fn(svc)
}
return svc
}
func makeServiceWithClusterIp(clusterIP string, clusterIPs []string) *api.Service {
return &api.Service{
Spec: api.ServiceSpec{
ClusterIP: clusterIP,
ClusterIPs: clusterIPs,
},
}
}
// TODO: This should be done on types that are not part of our API
func TestBeforeUpdate(t *testing.T) {
testCases := []struct {
name string
tweakSvc func(oldSvc, newSvc *api.Service) // given basic valid services, each test case can customize them
expectErr bool
}{
{
name: "no change",
tweakSvc: func(oldSvc, newSvc *api.Service) {
// nothing
},
expectErr: false,
},
{
name: "change port",
tweakSvc: func(oldSvc, newSvc *api.Service) {
newSvc.Spec.Ports[0].Port++
},
expectErr: false,
},
{
name: "bad namespace",
tweakSvc: func(oldSvc, newSvc *api.Service) {
newSvc.Namespace = "#$%%invalid"
},
expectErr: true,
},
{
name: "change name",
tweakSvc: func(oldSvc, newSvc *api.Service) {
newSvc.Name += "2"
},
expectErr: true,
},
{
name: "change ClusterIP",
tweakSvc: func(oldSvc, newSvc *api.Service) {
oldSvc.Spec.ClusterIPs = []string{"1.2.3.4"}
newSvc.Spec.ClusterIPs = []string{"4.3.2.1"}
},
expectErr: true,
},
{
name: "change selector",
tweakSvc: func(oldSvc, newSvc *api.Service) {
newSvc.Spec.Selector = map[string]string{"newkey": "newvalue"}
},
expectErr: false,
},
}
for _, tc := range testCases {
strategy, _ := newStrategy("172.30.0.0/16", false)
oldSvc := makeValidService()
newSvc := makeValidService()
tc.tweakSvc(oldSvc, newSvc)
ctx := genericapirequest.NewDefaultContext()
err := rest.BeforeUpdate(strategy, ctx, runtime.Object(oldSvc), runtime.Object(newSvc))
if tc.expectErr && err == nil {
t.Errorf("unexpected non-error for %q", tc.name)
}
if !tc.expectErr && err != nil {
t.Errorf("unexpected error for %q: %v", tc.name, err)
}
}
}
func TestServiceStatusStrategy(t *testing.T) {
_, testStatusStrategy := newStrategy("10.0.0.0/16", false)
ctx := genericapirequest.NewDefaultContext()
if !testStatusStrategy.NamespaceScoped() {
t.Errorf("Service must be namespace scoped")
}
oldService := makeValidService()
newService := makeValidService()
oldService.ResourceVersion = "4"
newService.ResourceVersion = "4"
newService.Spec.SessionAffinity = "ClientIP"
newService.Status = api.ServiceStatus{
LoadBalancer: api.LoadBalancerStatus{
Ingress: []api.LoadBalancerIngress{
{IP: "127.0.0.2"},
},
},
}
testStatusStrategy.PrepareForUpdate(ctx, newService, oldService)
if newService.Status.LoadBalancer.Ingress[0].IP != "127.0.0.2" {
t.Errorf("Service status updates should allow change of status fields")
}
if newService.Spec.SessionAffinity != "None" {
t.Errorf("PrepareForUpdate should have preserved old spec")
}
errs := testStatusStrategy.ValidateUpdate(ctx, newService, oldService)
if len(errs) != 0 {
t.Errorf("Unexpected error %v", errs)
}
}
func makeServiceWithIPFamilies(ipfamilies []api.IPFamily, ipFamilyPolicy *api.IPFamilyPolicyType) *api.Service {
return &api.Service{
Spec: api.ServiceSpec{
IPFamilies: ipfamilies,
IPFamilyPolicy: ipFamilyPolicy,
},
}
}
func makeServiceWithConditions(conditions []metav1.Condition) *api.Service {
return &api.Service{
Status: api.ServiceStatus{
Conditions: conditions,
},
}
}
func makeServiceWithPorts(ports []api.PortStatus) *api.Service {
return &api.Service{
Status: api.ServiceStatus{
LoadBalancer: api.LoadBalancerStatus{
Ingress: []api.LoadBalancerIngress{
{
Ports: ports,
},
},
},
},
}
}
func makeServiceWithLoadBalancerClass(loadBalancerClass *string) *api.Service {
return &api.Service{
Spec: api.ServiceSpec{
LoadBalancerClass: loadBalancerClass,
},
}
}
func makeServiceWithInternalTrafficPolicy(policy *api.ServiceInternalTrafficPolicyType) *api.Service {
return &api.Service{
Spec: api.ServiceSpec{
InternalTrafficPolicy: policy,
},
}
}
func TestDropDisabledField(t *testing.T) {
requireDualStack := api.IPFamilyPolicyRequireDualStack
preferDualStack := api.IPFamilyPolicyPreferDualStack
singleStack := api.IPFamilyPolicySingleStack
localInternalTrafficPolicy := api.ServiceInternalTrafficPolicyLocal
testCases := []struct {
name string
enableDualStack bool
enableMixedProtocol bool
enableLoadBalancerClass bool
enableInternalTrafficPolicy bool
svc *api.Service
oldSvc *api.Service
compareSvc *api.Service
}{
{
name: "not dual stack, field not used",
enableDualStack: false,
svc: makeServiceWithIPFamilies(nil, nil),
oldSvc: nil,
compareSvc: makeServiceWithIPFamilies(nil, nil),
},
{
name: "not dual stack, field used in old and new",
enableDualStack: false,
svc: makeServiceWithIPFamilies([]api.IPFamily{api.IPv4Protocol}, nil),
oldSvc: makeServiceWithIPFamilies([]api.IPFamily{api.IPv4Protocol}, nil),
compareSvc: makeServiceWithIPFamilies([]api.IPFamily{api.IPv4Protocol}, nil),
},
{
name: "dualstack, field used",
enableDualStack: true,
svc: makeServiceWithIPFamilies([]api.IPFamily{api.IPv6Protocol}, nil),
oldSvc: nil,
compareSvc: makeServiceWithIPFamilies([]api.IPFamily{api.IPv6Protocol}, nil),
},
/* preferDualStack field */
{
name: "not dual stack, fields is not use",
enableDualStack: false,
svc: makeServiceWithIPFamilies(nil, nil),
oldSvc: nil,
compareSvc: makeServiceWithIPFamilies(nil, nil),
},
{
name: "not dual stack, fields used in new, not in old",
enableDualStack: false,
svc: makeServiceWithIPFamilies(nil, &preferDualStack),
oldSvc: nil,
compareSvc: makeServiceWithIPFamilies(nil, nil),
},
{
name: "not dual stack, fields used in new, not in old",
enableDualStack: false,
svc: makeServiceWithIPFamilies(nil, &requireDualStack),
oldSvc: nil,
compareSvc: makeServiceWithIPFamilies(nil, nil),
},
{
name: "not dual stack, fields not used in old (single stack)",
enableDualStack: false,
svc: makeServiceWithIPFamilies(nil, nil),
oldSvc: makeServiceWithIPFamilies(nil, &singleStack),
compareSvc: makeServiceWithIPFamilies(nil, nil),
},
{
name: "dualstack, field used",
enableDualStack: true,
svc: makeServiceWithIPFamilies(nil, &singleStack),
oldSvc: nil,
compareSvc: makeServiceWithIPFamilies(nil, &singleStack),
},
/* svc.Status.Conditions */
{
name: "mixed protocol not enabled, field not used in old, not used in new",
enableMixedProtocol: false,
svc: makeServiceWithConditions(nil),
oldSvc: makeServiceWithConditions(nil),
compareSvc: makeServiceWithConditions(nil),
},
{
name: "mixed protocol not enabled, field used in old and in new",
enableMixedProtocol: false,
svc: makeServiceWithConditions([]metav1.Condition{}),
oldSvc: makeServiceWithConditions([]metav1.Condition{}),
compareSvc: makeServiceWithConditions([]metav1.Condition{}),
},
{
name: "mixed protocol not enabled, field not used in old, used in new",
enableMixedProtocol: false,
svc: makeServiceWithConditions([]metav1.Condition{}),
oldSvc: makeServiceWithConditions(nil),
compareSvc: makeServiceWithConditions(nil),
},
{
name: "mixed protocol not enabled, field used in old, not used in new",
enableMixedProtocol: false,
svc: makeServiceWithConditions(nil),
oldSvc: makeServiceWithConditions([]metav1.Condition{}),
compareSvc: makeServiceWithConditions(nil),
},
{
name: "mixed protocol enabled, field not used in old, not used in new",
enableMixedProtocol: true,
svc: makeServiceWithConditions(nil),
oldSvc: makeServiceWithConditions(nil),
compareSvc: makeServiceWithConditions(nil),
},
{
name: "mixed protocol enabled, field used in old and in new",
enableMixedProtocol: true,
svc: makeServiceWithConditions([]metav1.Condition{}),
oldSvc: makeServiceWithConditions([]metav1.Condition{}),
compareSvc: makeServiceWithConditions([]metav1.Condition{}),
},
{
name: "mixed protocol enabled, field not used in old, used in new",
enableMixedProtocol: true,
svc: makeServiceWithConditions([]metav1.Condition{}),
oldSvc: makeServiceWithConditions(nil),
compareSvc: makeServiceWithConditions([]metav1.Condition{}),
},
{
name: "mixed protocol enabled, field used in old, not used in new",
enableMixedProtocol: true,
svc: makeServiceWithConditions(nil),
oldSvc: makeServiceWithConditions([]metav1.Condition{}),
compareSvc: makeServiceWithConditions(nil),
},
/* svc.Status.LoadBalancer.Ingress.Ports */
{
name: "mixed protocol not enabled, field not used in old, not used in new",
enableMixedProtocol: false,
svc: makeServiceWithPorts(nil),
oldSvc: makeServiceWithPorts(nil),
compareSvc: makeServiceWithPorts(nil),
},
{
name: "mixed protocol not enabled, field used in old and in new",
enableMixedProtocol: false,
svc: makeServiceWithPorts([]api.PortStatus{}),
oldSvc: makeServiceWithPorts([]api.PortStatus{}),
compareSvc: makeServiceWithPorts([]api.PortStatus{}),
},
{
name: "mixed protocol not enabled, field not used in old, used in new",
enableMixedProtocol: false,
svc: makeServiceWithPorts([]api.PortStatus{}),
oldSvc: makeServiceWithPorts(nil),
compareSvc: makeServiceWithPorts(nil),
},
{
name: "mixed protocol not enabled, field used in old, not used in new",
enableMixedProtocol: false,
svc: makeServiceWithPorts(nil),
oldSvc: makeServiceWithPorts([]api.PortStatus{}),
compareSvc: makeServiceWithPorts(nil),
},
{
name: "mixed protocol enabled, field not used in old, not used in new",
enableMixedProtocol: true,
svc: makeServiceWithPorts(nil),
oldSvc: makeServiceWithPorts(nil),
compareSvc: makeServiceWithPorts(nil),
},
{
name: "mixed protocol enabled, field used in old and in new",
enableMixedProtocol: true,
svc: makeServiceWithPorts([]api.PortStatus{}),
oldSvc: makeServiceWithPorts([]api.PortStatus{}),
compareSvc: makeServiceWithPorts([]api.PortStatus{}),
},
{
name: "mixed protocol enabled, field not used in old, used in new",
enableMixedProtocol: true,
svc: makeServiceWithPorts([]api.PortStatus{}),
oldSvc: makeServiceWithPorts(nil),
compareSvc: makeServiceWithPorts([]api.PortStatus{}),
},
{
name: "mixed protocol enabled, field used in old, not used in new",
enableMixedProtocol: true,
svc: makeServiceWithPorts(nil),
oldSvc: makeServiceWithPorts([]api.PortStatus{}),
compareSvc: makeServiceWithPorts(nil),
},
/* svc.Spec.LoadBalancerClass */
{
name: "loadBalancerClass not enabled, field not used in old, not used in new",
enableLoadBalancerClass: false,
svc: makeServiceWithLoadBalancerClass(nil),
oldSvc: makeServiceWithLoadBalancerClass(nil),
compareSvc: makeServiceWithLoadBalancerClass(nil),
},
{
name: "loadBalancerClass not enabled, field used in old and in new",
enableLoadBalancerClass: false,
svc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
oldSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
compareSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
},
{
name: "loadBalancerClass not enabled, field not used in old, used in new",
enableLoadBalancerClass: false,
svc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
oldSvc: makeServiceWithLoadBalancerClass(nil),
compareSvc: makeServiceWithLoadBalancerClass(nil),
},
{
name: "loadBalancerClass not enabled, field used in old, not used in new",
enableLoadBalancerClass: false,
svc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
oldSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
compareSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
},
{
name: "loadBalancerClass enabled, field not used in old, not used in new",
enableLoadBalancerClass: true,
svc: makeServiceWithLoadBalancerClass(nil),
oldSvc: makeServiceWithLoadBalancerClass(nil),
compareSvc: makeServiceWithLoadBalancerClass(nil),
},
{
name: "loadBalancerClass enabled, field used in old and in new",
enableLoadBalancerClass: true,
svc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
oldSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
compareSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
},
{
name: "loadBalancerClass enabled, field not used in old, used in new",
enableLoadBalancerClass: true,
svc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
oldSvc: makeServiceWithLoadBalancerClass(nil),
compareSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
},
{
name: "loadBalancerClass enabled, field used in old, not used in new",
enableLoadBalancerClass: true,
svc: makeServiceWithLoadBalancerClass(nil),
oldSvc: makeServiceWithLoadBalancerClass(utilpointer.StringPtr("test.com/test")),
compareSvc: makeServiceWithLoadBalancerClass(nil),
},
/* svc.spec.internalTrafficPolicy */
{
name: "internal traffic policy not enabled, field used in old, not used in new",
enableInternalTrafficPolicy: false,
svc: makeServiceWithInternalTrafficPolicy(nil),
oldSvc: makeServiceWithInternalTrafficPolicy(&localInternalTrafficPolicy),
compareSvc: makeServiceWithInternalTrafficPolicy(nil),
},
{
name: "internal traffic policy not enabled, field not used in old, used in new",
enableInternalTrafficPolicy: false,
svc: makeServiceWithInternalTrafficPolicy(&localInternalTrafficPolicy),
oldSvc: makeServiceWithInternalTrafficPolicy(nil),
compareSvc: makeServiceWithInternalTrafficPolicy(nil),
},
{
name: "internal traffic policy enabled, field not used in old, used in new",
enableInternalTrafficPolicy: true,
svc: makeServiceWithInternalTrafficPolicy(&localInternalTrafficPolicy),
oldSvc: makeServiceWithInternalTrafficPolicy(nil),
compareSvc: makeServiceWithInternalTrafficPolicy(&localInternalTrafficPolicy),
},
/* add more tests for other dropped fields as needed */
}
for _, tc := range testCases {
func() {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.IPv6DualStack, tc.enableDualStack)()
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.MixedProtocolLBService, tc.enableMixedProtocol)()
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ServiceLoadBalancerClass, tc.enableLoadBalancerClass)()
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ServiceInternalTrafficPolicy, tc.enableInternalTrafficPolicy)()
old := tc.oldSvc.DeepCopy()
// to test against user using IPFamily not set on cluster
dropServiceDisabledFields(tc.svc, tc.oldSvc)
// old node should never be changed
if !reflect.DeepEqual(tc.oldSvc, old) {
t.Errorf("%v: old svc changed: %v", tc.name, diff.ObjectReflectDiff(tc.oldSvc, old))
}
if !reflect.DeepEqual(tc.svc, tc.compareSvc) {
t.Errorf("%v: unexpected svc spec: %v", tc.name, diff.ObjectReflectDiff(tc.svc, tc.compareSvc))
}
}()
}
}
func TestNormalizeClusterIPs(t *testing.T) {
testCases := []struct {
name string
oldService *api.Service
newService *api.Service
expectedClusterIP string
expectedClusterIPs []string
}{
{
name: "new - only clusterip used",
oldService: nil,
newService: makeServiceWithClusterIp("10.0.0.10", nil),
expectedClusterIP: "10.0.0.10",
expectedClusterIPs: []string{"10.0.0.10"},
},
{
name: "new - only clusterips used",
oldService: nil,
newService: makeServiceWithClusterIp("", []string{"10.0.0.10"}),
expectedClusterIP: "", // this is a validation issue, and validation will catch it
expectedClusterIPs: []string{"10.0.0.10"},
},
{
name: "new - both used",
oldService: nil,
newService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
expectedClusterIP: "10.0.0.10",
expectedClusterIPs: []string{"10.0.0.10"},
},
{
name: "update - no change",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
expectedClusterIP: "10.0.0.10",
expectedClusterIPs: []string{"10.0.0.10"},
},
{
name: "update - malformed change",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("10.0.0.11", []string{"10.0.0.11"}),
expectedClusterIP: "10.0.0.11",
expectedClusterIPs: []string{"10.0.0.11"},
},
{
name: "update - malformed change on secondary ip",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10", "2000::1"}),
newService: makeServiceWithClusterIp("10.0.0.11", []string{"10.0.0.11", "3000::1"}),
expectedClusterIP: "10.0.0.11",
expectedClusterIPs: []string{"10.0.0.11", "3000::1"},
},
{
name: "update - upgrade",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10", "2000::1"}),
expectedClusterIP: "10.0.0.10",
expectedClusterIPs: []string{"10.0.0.10", "2000::1"},
},
{
name: "update - downgrade",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10", "2000::1"}),
newService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
expectedClusterIP: "10.0.0.10",
expectedClusterIPs: []string{"10.0.0.10"},
},
{
name: "update - user cleared cluster IP",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("", []string{"10.0.0.10"}),
expectedClusterIP: "",
expectedClusterIPs: nil,
},
{
name: "update - user cleared clusterIPs", // *MUST* REMAIN FOR OLD CLIENTS
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("10.0.0.10", nil),
expectedClusterIP: "10.0.0.10",
expectedClusterIPs: []string{"10.0.0.10"},
},
{
name: "update - user cleared both",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("", nil),
expectedClusterIP: "",
expectedClusterIPs: nil,
},
{
name: "update - user cleared ClusterIP but changed clusterIPs",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("", []string{"10.0.0.11"}),
expectedClusterIP: "", /* validation catches this */
expectedClusterIPs: []string{"10.0.0.11"},
},
{
name: "update - user cleared ClusterIPs but changed ClusterIP",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10", "2000::1"}),
newService: makeServiceWithClusterIp("10.0.0.11", nil),
expectedClusterIP: "10.0.0.11",
expectedClusterIPs: nil,
},
{
name: "update - user changed from None to ClusterIP",
oldService: makeServiceWithClusterIp("None", []string{"None"}),
newService: makeServiceWithClusterIp("10.0.0.10", []string{"None"}),
expectedClusterIP: "10.0.0.10",
expectedClusterIPs: []string{"10.0.0.10"},
},
{
name: "update - user changed from ClusterIP to None",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10"}),
newService: makeServiceWithClusterIp("None", []string{"10.0.0.10"}),
expectedClusterIP: "None",
expectedClusterIPs: []string{"None"},
},
{
name: "update - user changed from ClusterIP to None and changed ClusterIPs in a dual stack (new client making a mistake)",
oldService: makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10", "2000::1"}),
newService: makeServiceWithClusterIp("None", []string{"10.0.0.11", "2000::1"}),
expectedClusterIP: "None",
expectedClusterIPs: []string{"10.0.0.11", "2000::1"},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
NormalizeClusterIPs(tc.oldService, tc.newService)
if tc.newService == nil {
t.Fatalf("unexpected new service to be nil")
}
if tc.newService.Spec.ClusterIP != tc.expectedClusterIP {
t.Fatalf("expected clusterIP [%v] got [%v]", tc.expectedClusterIP, tc.newService.Spec.ClusterIP)
}
if len(tc.newService.Spec.ClusterIPs) != len(tc.expectedClusterIPs) {
t.Fatalf("expected clusterIPs %v got %v", tc.expectedClusterIPs, tc.newService.Spec.ClusterIPs)
}
for idx, clusterIP := range tc.newService.Spec.ClusterIPs {
if clusterIP != tc.expectedClusterIPs[idx] {
t.Fatalf("expected clusterIP [%v] at index[%v] got [%v]", tc.expectedClusterIPs[idx], idx, tc.newService.Spec.ClusterIPs[idx])
}
}
})
}
}
func TestDropTypeDependentFields(t *testing.T) {
// Tweaks used below.
setTypeExternalName := func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeExternalName
}
setTypeNodePort := func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeNodePort
}
setTypeClusterIP := func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeClusterIP
}
setTypeLoadBalancer := func(svc *api.Service) {
svc.Spec.Type = api.ServiceTypeLoadBalancer
}
clearClusterIPs := func(svc *api.Service) {
svc.Spec.ClusterIP = ""
svc.Spec.ClusterIPs = nil
}
changeClusterIPs := func(svc *api.Service) {
svc.Spec.ClusterIP += "0"
svc.Spec.ClusterIPs[0] += "0"
}
setNodePorts := func(svc *api.Service) {
for i := range svc.Spec.Ports {
svc.Spec.Ports[i].NodePort = int32(30000 + i)
}
}
changeNodePorts := func(svc *api.Service) {
for i := range svc.Spec.Ports {
svc.Spec.Ports[i].NodePort += 100
}
}
clearIPFamilies := func(svc *api.Service) {
svc.Spec.IPFamilies = nil
}
changeIPFamilies := func(svc *api.Service) {
svc.Spec.IPFamilies[0] = svc.Spec.IPFamilies[1]
}
clearIPFamilyPolicy := func(svc *api.Service) {
svc.Spec.IPFamilyPolicy = nil
}
changeIPFamilyPolicy := func(svc *api.Service) {
single := api.IPFamilyPolicySingleStack
svc.Spec.IPFamilyPolicy = &single
}
addPort := func(svc *api.Service) {
svc.Spec.Ports = append(svc.Spec.Ports, makeValidServicePort("new", "TCP", 0))
}
delPort := func(svc *api.Service) {
svc.Spec.Ports = svc.Spec.Ports[0 : len(svc.Spec.Ports)-1]
}
changePort := func(svc *api.Service) {
svc.Spec.Ports[0].Port += 100
svc.Spec.Ports[0].Protocol = "UDP"
}
setHCNodePort := func(svc *api.Service) {
svc.Spec.ExternalTrafficPolicy = api.ServiceExternalTrafficPolicyTypeLocal
svc.Spec.HealthCheckNodePort = int32(32000)
}
changeHCNodePort := func(svc *api.Service) {
svc.Spec.HealthCheckNodePort += 100
}
patches := func(fns ...func(svc *api.Service)) func(svc *api.Service) {
return func(svc *api.Service) {
for _, fn := range fns {
fn(svc)
}
}
}
setAllocateLoadBalancerNodePortsTrue := func(svc *api.Service) {
svc.Spec.AllocateLoadBalancerNodePorts = utilpointer.BoolPtr(true)
}
setAllocateLoadBalancerNodePortsFalse := func(svc *api.Service) {
svc.Spec.AllocateLoadBalancerNodePorts = utilpointer.BoolPtr(false)
}
clearAllocateLoadBalancerNodePorts := func(svc *api.Service) {
svc.Spec.AllocateLoadBalancerNodePorts = nil
}
setLoadBalancerClass := func(svc *api.Service) {
svc.Spec.LoadBalancerClass = utilpointer.StringPtr("test-load-balancer-class")
}
clearLoadBalancerClass := func(svc *api.Service) {
svc.Spec.LoadBalancerClass = nil
}
changeLoadBalancerClass := func(svc *api.Service) {
svc.Spec.LoadBalancerClass = utilpointer.StringPtr("test-load-balancer-class-changed")
}
testCases := []struct {
name string
svc *api.Service
patch func(svc *api.Service)
expect *api.Service
}{
{ // clusterIP cases
name: "don't clear clusterIP et al",
svc: makeValidService(),
patch: nil,
expect: makeValidService(),
}, {
name: "clear clusterIP et al",
svc: makeValidService(),
patch: setTypeExternalName,
expect: makeValidServiceCustom(setTypeExternalName, clearClusterIPs, clearIPFamilies, clearIPFamilyPolicy),
}, {
name: "don't clear changed clusterIP",
svc: makeValidService(),
patch: patches(setTypeExternalName, changeClusterIPs),
expect: makeValidServiceCustom(setTypeExternalName, changeClusterIPs, clearIPFamilies, clearIPFamilyPolicy),
}, {
name: "don't clear changed ipFamilies",
svc: makeValidService(),
patch: patches(setTypeExternalName, changeIPFamilies),
expect: makeValidServiceCustom(setTypeExternalName, clearClusterIPs, changeIPFamilies, clearIPFamilyPolicy),
}, {
name: "don't clear changed ipFamilyPolicy",
svc: makeValidService(),
patch: patches(setTypeExternalName, changeIPFamilyPolicy),
expect: makeValidServiceCustom(setTypeExternalName, clearClusterIPs, clearIPFamilies, changeIPFamilyPolicy),
}, { // nodePort cases
name: "don't clear nodePorts for type=NodePort",
svc: makeValidServiceCustom(setTypeNodePort, setNodePorts),
patch: nil,
expect: makeValidServiceCustom(setTypeNodePort, setNodePorts),
}, {
name: "don't clear nodePorts for type=LoadBalancer",
svc: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
patch: nil,
expect: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
}, {
name: "clear nodePorts",
svc: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
patch: setTypeClusterIP,
expect: makeValidService(),
}, {
name: "don't clear changed nodePorts",
svc: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
patch: patches(setTypeClusterIP, changeNodePorts),
expect: makeValidServiceCustom(setNodePorts, changeNodePorts),
}, {
name: "clear nodePorts when adding a port",
svc: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
patch: patches(setTypeClusterIP, addPort),
expect: makeValidServiceCustom(addPort),
}, {
name: "don't clear nodePorts when adding a port with NodePort",
svc: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
patch: patches(setTypeClusterIP, addPort, setNodePorts),
expect: makeValidServiceCustom(addPort, setNodePorts),
}, {
name: "clear nodePorts when removing a port",
svc: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
patch: patches(setTypeClusterIP, delPort),
expect: makeValidServiceCustom(delPort),
}, {
name: "clear nodePorts when changing a port",
svc: makeValidServiceCustom(setTypeLoadBalancer, setNodePorts),
patch: patches(setTypeClusterIP, changePort),
expect: makeValidServiceCustom(changePort),
}, { // healthCheckNodePort cases
name: "don't clear healthCheckNodePort for type=LoadBalancer",
svc: makeValidServiceCustom(setTypeLoadBalancer, setHCNodePort),
patch: nil,
expect: makeValidServiceCustom(setTypeLoadBalancer, setHCNodePort),
}, {
name: "clear healthCheckNodePort",
svc: makeValidServiceCustom(setTypeLoadBalancer, setHCNodePort),
patch: setTypeClusterIP,
expect: makeValidService(),
}, {
name: "don't clear changed healthCheckNodePort",
svc: makeValidServiceCustom(setTypeLoadBalancer, setHCNodePort),
patch: patches(setTypeClusterIP, changeHCNodePort),
expect: makeValidServiceCustom(setHCNodePort, changeHCNodePort),
}, { // allocatedLoadBalancerNodePorts cases
name: "clear allocatedLoadBalancerNodePorts true -> true",
svc: makeValidServiceCustom(setTypeLoadBalancer, setAllocateLoadBalancerNodePortsTrue),
patch: setTypeNodePort,
expect: makeValidServiceCustom(setTypeNodePort),
}, {
name: "clear allocatedLoadBalancerNodePorts false -> false",
svc: makeValidServiceCustom(setTypeLoadBalancer, setAllocateLoadBalancerNodePortsFalse),
patch: setTypeNodePort,
expect: makeValidServiceCustom(setTypeNodePort),
}, {
name: "set allocatedLoadBalancerNodePorts nil -> true",
svc: makeValidServiceCustom(setTypeLoadBalancer),
patch: patches(setTypeNodePort, setAllocateLoadBalancerNodePortsTrue),
expect: makeValidServiceCustom(setTypeNodePort, setAllocateLoadBalancerNodePortsTrue),
}, {
name: "set allocatedLoadBalancerNodePorts nil -> false",
svc: makeValidServiceCustom(setTypeLoadBalancer),
patch: patches(setTypeNodePort, setAllocateLoadBalancerNodePortsFalse),
expect: makeValidServiceCustom(setTypeNodePort, setAllocateLoadBalancerNodePortsFalse),
}, {
name: "set allocatedLoadBalancerNodePorts true -> nil",
svc: makeValidServiceCustom(setTypeLoadBalancer, setAllocateLoadBalancerNodePortsTrue),
patch: patches(setTypeNodePort, clearAllocateLoadBalancerNodePorts),
expect: makeValidServiceCustom(setTypeNodePort),
}, {
name: "set allocatedLoadBalancerNodePorts false -> nil",
svc: makeValidServiceCustom(setTypeLoadBalancer, setAllocateLoadBalancerNodePortsFalse),
patch: patches(setTypeNodePort, clearAllocateLoadBalancerNodePorts),
expect: makeValidServiceCustom(setTypeNodePort),
}, {
name: "set allocatedLoadBalancerNodePorts true -> false",
svc: makeValidServiceCustom(setTypeLoadBalancer, setAllocateLoadBalancerNodePortsTrue),
patch: patches(setTypeNodePort, setAllocateLoadBalancerNodePortsFalse),
expect: makeValidServiceCustom(setTypeNodePort, setAllocateLoadBalancerNodePortsFalse),
}, {
name: "set allocatedLoadBalancerNodePorts false -> true",
svc: makeValidServiceCustom(setTypeLoadBalancer, setAllocateLoadBalancerNodePortsFalse),
patch: patches(setTypeNodePort, setAllocateLoadBalancerNodePortsTrue),
expect: makeValidServiceCustom(setTypeNodePort, setAllocateLoadBalancerNodePortsTrue),
}, { // loadBalancerClass cases
name: "clear loadBalancerClass when set Service type LoadBalancer -> non LoadBalancer",
svc: makeValidServiceCustom(setTypeLoadBalancer, setLoadBalancerClass),
patch: setTypeClusterIP,
expect: makeValidServiceCustom(setTypeClusterIP, clearLoadBalancerClass),
}, {
name: "update loadBalancerClass load balancer class name",
svc: makeValidServiceCustom(setTypeLoadBalancer, setLoadBalancerClass),
patch: changeLoadBalancerClass,
expect: makeValidServiceCustom(setTypeLoadBalancer, changeLoadBalancerClass),
}, {
name: "clear load balancer class name",
svc: makeValidServiceCustom(setTypeLoadBalancer, setLoadBalancerClass),
patch: clearLoadBalancerClass,
expect: makeValidServiceCustom(setTypeLoadBalancer, clearLoadBalancerClass),
}, {
name: "change service type and load balancer class",
svc: makeValidServiceCustom(setTypeLoadBalancer, setLoadBalancerClass),
patch: patches(setTypeClusterIP, changeLoadBalancerClass),
expect: makeValidServiceCustom(setTypeClusterIP, changeLoadBalancerClass),
}, {
name: "change service type to load balancer and set load balancer class",
svc: makeValidServiceCustom(setTypeClusterIP),
patch: patches(setTypeLoadBalancer, setLoadBalancerClass),
expect: makeValidServiceCustom(setTypeLoadBalancer, setLoadBalancerClass),
}, {
name: "don't clear load balancer class for Type=LoadBalancer",
svc: makeValidServiceCustom(setTypeLoadBalancer, setLoadBalancerClass),
patch: nil,
expect: makeValidServiceCustom(setTypeLoadBalancer, setLoadBalancerClass),
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
result := tc.svc.DeepCopy()
if tc.patch != nil {
tc.patch(result)
}
dropTypeDependentFields(result, tc.svc)
if result.Spec.ClusterIP != tc.expect.Spec.ClusterIP {
t.Errorf("expected clusterIP %q, got %q", tc.expect.Spec.ClusterIP, result.Spec.ClusterIP)
}
if !reflect.DeepEqual(result.Spec.ClusterIPs, tc.expect.Spec.ClusterIPs) {
t.Errorf("expected clusterIPs %q, got %q", tc.expect.Spec.ClusterIP, result.Spec.ClusterIP)
}
if !reflect.DeepEqual(result.Spec.IPFamilies, tc.expect.Spec.IPFamilies) {
t.Errorf("expected ipFamilies %q, got %q", tc.expect.Spec.IPFamilies, result.Spec.IPFamilies)
}
if !reflect.DeepEqual(result.Spec.IPFamilyPolicy, tc.expect.Spec.IPFamilyPolicy) {
t.Errorf("expected ipFamilyPolicy %q, got %q", getIPFamilyPolicy(tc.expect), getIPFamilyPolicy(result))
}
for i := range result.Spec.Ports {
resultPort := result.Spec.Ports[i].NodePort
expectPort := tc.expect.Spec.Ports[i].NodePort
if resultPort != expectPort {
t.Errorf("failed %q: expected Ports[%d].NodePort %d, got %d", tc.name, i, expectPort, resultPort)
}
}
if result.Spec.HealthCheckNodePort != tc.expect.Spec.HealthCheckNodePort {
t.Errorf("failed %q: expected healthCheckNodePort %d, got %d", tc.name, tc.expect.Spec.HealthCheckNodePort, result.Spec.HealthCheckNodePort)
}
if !reflect.DeepEqual(result.Spec.AllocateLoadBalancerNodePorts, tc.expect.Spec.AllocateLoadBalancerNodePorts) {
t.Errorf("failed %q: expected AllocateLoadBalancerNodePorts %v, got %v", tc.name, tc.expect.Spec.AllocateLoadBalancerNodePorts, result.Spec.AllocateLoadBalancerNodePorts)
}
if !reflect.DeepEqual(result.Spec.LoadBalancerClass, tc.expect.Spec.LoadBalancerClass) {
t.Errorf("failed %q: expected LoadBalancerClass %v, got %v", tc.name, tc.expect.Spec.LoadBalancerClass, result.Spec.LoadBalancerClass)
}
})
}
}