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failures_collector.go
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/
failures_collector.go
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package prometheus
import (
"sync"
"github.com/prometheus/client_golang/prometheus"
"gitlab.com/gitlab-org/gitlab-runner/common"
)
var numJobFailuresDesc = prometheus.NewDesc(
"gitlab_runner_failed_jobs_total",
"Total number of failed jobs",
[]string{"runner", "failure_reason"},
nil,
)
type failurePermutation struct {
runnerDescription string
reason common.JobFailureReason
}
type FailuresCollector struct {
lock sync.RWMutex
failures map[failurePermutation]int64
}
func (fc *FailuresCollector) RecordFailure(reason common.JobFailureReason, runnerDescription string) {
failure := failurePermutation{
runnerDescription: runnerDescription,
reason: reason,
}
fc.lock.Lock()
defer fc.lock.Unlock()
if _, ok := fc.failures[failure]; ok {
fc.failures[failure]++
} else {
fc.failures[failure] = 1
}
}
func (fc *FailuresCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- numJobFailuresDesc
}
func (fc *FailuresCollector) Collect(ch chan<- prometheus.Metric) {
fc.lock.RLock()
defer fc.lock.RUnlock()
for failure, number := range fc.failures {
ch <- prometheus.MustNewConstMetric(
numJobFailuresDesc,
prometheus.CounterValue,
float64(number),
failure.runnerDescription,
string(failure.reason),
)
}
}
func NewFailuresCollector() *FailuresCollector {
return &FailuresCollector{
failures: make(map[failurePermutation]int64),
}
}