kubernetes admission_test 源码
kubernetes admission_test 代码
文件路径：/plugin/pkg/admission/network/denyserviceexternalips/admission_test.go
/*
Copyright 2020 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 denyserviceexternalips
import (
"context"
"testing"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apiserver/pkg/admission"
"k8s.io/kubernetes/pkg/apis/core"
)
func makeSvc(externalIPs ...string) *core.Service {
svc := &core.Service{}
svc.Namespace = "test-ns"
svc.Name = "test-svc"
svc.Spec.ExternalIPs = externalIPs
return svc
}
func TestAdmission(t *testing.T) {
testCases := []struct {
name string
newSvc *core.Service
oldSvc *core.Service
fail bool
}{{
name: "create: without externalIPs",
newSvc: makeSvc(),
}, {
name: "create: with externalIPs",
newSvc: makeSvc("1.1.1.1"),
fail: true,
}, {
name: "update: same externalIPs",
newSvc: makeSvc("1.1.1.1", "2.2.2.2"),
oldSvc: makeSvc("1.1.1.1", "2.2.2.2"),
}, {
name: "update: reorder externalIPs",
newSvc: makeSvc("1.1.1.1", "2.2.2.2"),
oldSvc: makeSvc("2.2.2.2", "1.1.1.1"),
}, {
name: "update: change externalIPs",
newSvc: makeSvc("1.1.1.1", "2.2.2.2"),
oldSvc: makeSvc("1.1.1.1", "3.3.3.3"),
fail: true,
}, {
name: "update: add externalIPs",
newSvc: makeSvc("1.1.1.1", "2.2.2.2"),
oldSvc: makeSvc("1.1.1.1"),
fail: true,
}, {
name: "update: erase externalIPs",
newSvc: makeSvc(),
oldSvc: makeSvc("1.1.1.1", "2.2.2.2"),
}, {
name: "update: reduce externalIPs from back",
newSvc: makeSvc("1.1.1.1"),
oldSvc: makeSvc("1.1.1.1", "2.2.2.2"),
}, {
name: "update: reduce externalIPs from front",
newSvc: makeSvc("2.2.2.2"),
oldSvc: makeSvc("1.1.1.1", "2.2.2.2"),
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
ctrl := newPlugin()
var op admission.Operation
var opt runtime.Object
if tc.oldSvc == nil {
op = admission.Create
opt = &metav1.CreateOptions{}
} else {
op = admission.Update
opt = &metav1.UpdateOptions{}
}
attrs := admission.NewAttributesRecord(
tc.newSvc, // new object
tc.oldSvc, // old object
core.Kind("Service").WithVersion("version"),
tc.newSvc.Namespace,
tc.newSvc.Name,
corev1.Resource("services").WithVersion("version"),
"", // subresource
op,
opt,
false, // dryRun
nil, // userInfo
)
err := ctrl.Validate(context.TODO(), attrs, nil)
if err != nil && !tc.fail {
t.Errorf("Unexpected failure: %v", err)
}
if err == nil && tc.fail {
t.Errorf("Unexpected success")
}
})
}
}
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