// // Copyright 2022 The Sigstore 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 api import ( "time" "github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus/promauto" "sigs.k8s.io/release-utils/version" ) var ( MetricLatency = promauto.NewHistogramVec(prometheus.HistogramOpts{ Name: "timestamp_authority_api_latency", Help: "API Latency on calls", }, []string{"path", "code"}) MetricLatencySummary = promauto.NewSummaryVec(prometheus.SummaryOpts{ Name: "timestamp_authority_api_latency_summary", Help: "API Latency on calls", }, []string{"path", "code"}) MetricRequestLatency = promauto.NewHistogramVec(prometheus.HistogramOpts{ Name: "timestamp_authority_latency_by_api", Help: "API Latency (in ns) by path and method", Buckets: prometheus.ExponentialBucketsRange( float64(time.Millisecond), float64(4*time.Second), 10), }, []string{"path", "method"}) MetricRequestCount = promauto.NewCounterVec(prometheus.CounterOpts{ Name: "timestamp_authority_http_requests_total", Help: "Total number of HTTP requests by status code, path, and method.", }, []string{"code", "path", "method"}) MetricNTPLatency = promauto.NewHistogramVec(prometheus.HistogramOpts{ Name: "timestamp_authority_ntp_latency", Help: "NTP request latency", }, []string{"host"}) MetricNTPSyncCount = promauto.NewCounterVec(prometheus.CounterOpts{ Name: "timestamp_authority_ntp_sync_total", Help: "Total number of NTP requests against a remote server", }, []string{"host", "failed"}) MetricNTPErrorCount = promauto.NewCounterVec(prometheus.CounterOpts{ Name: "timestamp_authority_ntp_errors_total", Help: "Total number of NTP related errors", }, []string{"reason"}) _ = promauto.NewGaugeFunc( prometheus.GaugeOpts{ Namespace: "timestamp_authority", Name: "build_info", Help: "A metric with a constant '1' value labeled by version, revision, branch, and goversion from which timestamp-authority was built.", ConstLabels: prometheus.Labels{ "version": version.GetVersionInfo().GitVersion, "revision": version.GetVersionInfo().GitCommit, "build_date": version.GetVersionInfo().BuildDate, "goversion": version.GetVersionInfo().GoVersion, }, }, func() float64 { return 1 }, ) )