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//
// Copyright 2021 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 (
metricNewEntries = promauto.NewCounter(prometheus.CounterOpts{
Name: "rekor_new_entries",
Help: "The total number of new log entries",
})
metricPublishEvents = promauto.NewCounterVec(prometheus.CounterOpts{
Name: "rekor_publish_events",
Help: "The status of publishing events to Pub/Sub",
}, []string{"event", "content_type", "status"})
metricIndexStorageLatency = promauto.NewSummaryVec(prometheus.SummaryOpts{
Name: "rekor_index_storage_latency_summary",
Help: "Latency of backend index insertion by success/failure",
}, []string{"success"})
MetricLatency = promauto.NewHistogramVec(prometheus.HistogramOpts{
Name: "rekor_api_latency",
Help: "Api Latency on calls",
}, []string{"path", "code"})
MetricLatencySummary = promauto.NewSummaryVec(prometheus.SummaryOpts{
Name: "rekor_api_latency_summary",
Help: "Api Latency on calls",
}, []string{"path", "code"})
MetricRequestLatency = promauto.NewHistogramVec(prometheus.HistogramOpts{
Name: "rekor_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: "rekor_qps_by_api",
Help: "Api QPS by path, method, and response code",
}, []string{"path", "method", "code"})
CheckpointPublishCount = promauto.NewCounterVec(prometheus.CounterOpts{
Name: "rekor_checkpoint_publish",
Help: "Checkpoint publishing by shard and code",
}, []string{"shard", "code"})
_ = promauto.NewGaugeFunc(
prometheus.GaugeOpts{
Namespace: "rekor",
Name: "build_info",
Help: "A metric with a constant '1' value labeled by version, revision, branch, and goversion from which rekor 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 },
)
)
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