106 lines
3.3 KiB
Go
106 lines
3.3 KiB
Go
/*
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Copyright 2024 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"context"
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"strings"
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"testing"
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"k8s.io/apiserver/pkg/authorization/authorizer"
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"k8s.io/component-base/metrics/legacyregistry"
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"k8s.io/component-base/metrics/testutil"
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)
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func TestRecordAuthorizationDecisionsTotal(t *testing.T) {
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prefix := `
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# HELP apiserver_authorization_decisions_total [ALPHA] Total number of terminal decisions made by an authorizer split by authorizer type, name, and decision.
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# TYPE apiserver_authorization_decisions_total counter`
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metrics := []string{
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namespace + "_" + subsystem + "_decisions_total",
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}
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authorizationDecisionsTotal.Reset()
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RegisterMetrics()
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dummyAuthorizer := &dummyAuthorizer{}
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a := InstrumentedAuthorizer("mytype", "myname", dummyAuthorizer)
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// allow
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{
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dummyAuthorizer.decision = authorizer.DecisionAllow
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_, _, _ = a.Authorize(context.Background(), nil)
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expectedValue := prefix + `
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apiserver_authorization_decisions_total{decision="allowed",name="myname",type="mytype"} 1
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`
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if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, strings.NewReader(expectedValue), metrics...); err != nil {
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t.Fatal(err)
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}
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authorizationDecisionsTotal.Reset()
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}
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// deny
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{
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dummyAuthorizer.decision = authorizer.DecisionDeny
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_, _, _ = a.Authorize(context.Background(), nil)
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_, _, _ = a.Authorize(context.Background(), nil)
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expectedValue := prefix + `
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apiserver_authorization_decisions_total{decision="denied",name="myname",type="mytype"} 2
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`
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if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, strings.NewReader(expectedValue), metrics...); err != nil {
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t.Fatal(err)
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}
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authorizationDecisionsTotal.Reset()
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}
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// no-opinion emits no metric
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{
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dummyAuthorizer.decision = authorizer.DecisionNoOpinion
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_, _, _ = a.Authorize(context.Background(), nil)
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_, _, _ = a.Authorize(context.Background(), nil)
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expectedValue := prefix + `
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`
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if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, strings.NewReader(expectedValue), metrics...); err != nil {
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t.Fatal(err)
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}
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authorizationDecisionsTotal.Reset()
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}
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// unknown decision emits a metric
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{
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dummyAuthorizer.decision = authorizer.DecisionDeny + 10
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_, _, _ = a.Authorize(context.Background(), nil)
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expectedValue := prefix + `
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apiserver_authorization_decisions_total{decision="unknown",name="myname",type="mytype"} 1
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`
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if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, strings.NewReader(expectedValue), metrics...); err != nil {
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t.Fatal(err)
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}
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authorizationDecisionsTotal.Reset()
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}
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}
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type dummyAuthorizer struct {
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decision authorizer.Decision
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err error
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}
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func (d *dummyAuthorizer) Authorize(ctx context.Context, attrs authorizer.Attributes) (authorizer.Decision, string, error) {
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return d.decision, "", d.err
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}
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