woodpecker/cmd/server/metrics_server.go

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2024-07-13 23:46:01 +00:00
// Copyright 2024 Woodpecker 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 main
import (
"context"
"errors"
"time"
"github.com/prometheus/client_golang/prometheus"
prometheus_auto "github.com/prometheus/client_golang/prometheus/promauto"
"github.com/rs/zerolog/log"
"go.woodpecker-ci.org/woodpecker/v2/server"
"go.woodpecker-ci.org/woodpecker/v2/server/store"
)
func startMetricsCollector(ctx context.Context, _store store.Store) {
pendingSteps := prometheus_auto.NewGauge(prometheus.GaugeOpts{
Namespace: "woodpecker",
Name: "pending_steps",
Help: "Total number of pending pipeline steps.",
})
waitingSteps := prometheus_auto.NewGauge(prometheus.GaugeOpts{
Namespace: "woodpecker",
Name: "waiting_steps",
Help: "Total number of pipeline waiting on deps.",
})
runningSteps := prometheus_auto.NewGauge(prometheus.GaugeOpts{
Namespace: "woodpecker",
Name: "running_steps",
Help: "Total number of running pipeline steps.",
})
workers := prometheus_auto.NewGauge(prometheus.GaugeOpts{
Namespace: "woodpecker",
Name: "worker_count",
Help: "Total number of workers.",
})
pipelines := prometheus_auto.NewGauge(prometheus.GaugeOpts{
Namespace: "woodpecker",
Name: "pipeline_total_count",
Help: "Total number of pipelines.",
})
users := prometheus_auto.NewGauge(prometheus.GaugeOpts{
Namespace: "woodpecker",
Name: "user_count",
Help: "Total number of users.",
})
repos := prometheus_auto.NewGauge(prometheus.GaugeOpts{
Namespace: "woodpecker",
Name: "repo_count",
Help: "Total number of repos.",
})
go func() {
log.Info().Msg("queue metric collector started")
for {
stats := server.Config.Services.Queue.Info(ctx)
pendingSteps.Set(float64(stats.Stats.Pending))
waitingSteps.Set(float64(stats.Stats.WaitingOnDeps))
runningSteps.Set(float64(stats.Stats.Running))
workers.Set(float64(stats.Stats.Workers))
select {
case <-ctx.Done():
log.Info().Msg("queue metric collector stopped")
return
case <-time.After(queueInfoRefreshInterval):
}
}
}()
go func() {
log.Info().Msg("store metric collector started")
for {
repoCount, repoErr := _store.GetRepoCount()
userCount, userErr := _store.GetUserCount()
pipelineCount, pipelineErr := _store.GetPipelineCount()
pipelines.Set(float64(pipelineCount))
users.Set(float64(userCount))
repos.Set(float64(repoCount))
if err := errors.Join(repoErr, userErr, pipelineErr); err != nil {
log.Error().Err(err).Msg("could not update store information for metrics")
}
select {
case <-ctx.Done():
log.Info().Msg("store metric collector stopped")
return
case <-time.After(storeInfoRefreshInterval):
}
}
}()
}