87 lines
4.1 KiB
Go
87 lines
4.1 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/component-base/metrics/legacyregistry"
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"k8s.io/component-base/metrics/testutil"
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)
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func TestRecordWebhookMetrics(t *testing.T) {
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testCases := []struct {
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desc string
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metrics []string
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name string
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result string
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duration float64
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want string
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}{
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{
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desc: "evaluation failure total",
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metrics: []string{
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"apiserver_authorization_webhook_duration_seconds",
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"apiserver_authorization_webhook_evaluations_total",
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"apiserver_authorization_webhook_evaluations_fail_open_total",
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},
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name: "wh1.example.com",
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result: "timeout",
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duration: 1.5,
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want: `
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# HELP apiserver_authorization_webhook_duration_seconds [ALPHA] Request latency in seconds.
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# TYPE apiserver_authorization_webhook_duration_seconds histogram
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="0.005"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="0.01"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="0.025"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="0.05"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="0.1"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="0.25"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="0.5"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="1"} 0
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="2.5"} 1
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="5"} 1
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="10"} 1
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apiserver_authorization_webhook_duration_seconds_bucket{name="wh1.example.com",result="timeout",le="+Inf"} 1
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apiserver_authorization_webhook_duration_seconds_sum{name="wh1.example.com",result="timeout"} 1.5
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apiserver_authorization_webhook_duration_seconds_count{name="wh1.example.com",result="timeout"} 1
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# HELP apiserver_authorization_webhook_evaluations_fail_open_total [ALPHA] NoOpinion results due to webhook timeout or error.
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# TYPE apiserver_authorization_webhook_evaluations_fail_open_total counter
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apiserver_authorization_webhook_evaluations_fail_open_total{name="wh1.example.com",result="timeout"} 1
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# HELP apiserver_authorization_webhook_evaluations_total [ALPHA] Round-trips to authorization webhooks.
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# TYPE apiserver_authorization_webhook_evaluations_total counter
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apiserver_authorization_webhook_evaluations_total{name="wh1.example.com",result="timeout"} 1
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`,
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},
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}
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for _, tt := range testCases {
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t.Run(tt.desc, func(t *testing.T) {
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ResetWebhookMetricsForTest()
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m := NewWebhookMetrics()
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m.RecordWebhookDuration(context.Background(), tt.name, tt.result, tt.duration)
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m.RecordWebhookEvaluation(context.Background(), tt.name, tt.result)
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m.RecordWebhookFailOpen(context.Background(), tt.name, tt.result)
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if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, strings.NewReader(tt.want), tt.metrics...); err != nil {
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t.Fatal(err)
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}
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})
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}
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}
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