cri-o/server/metrics/metrics.go
Antonio Murdaca 12cb424833
server: add prometheus metrics for CRI operations
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
2017-11-10 14:22:13 +01:00

70 lines
2 KiB
Go

package metrics
import (
"sync"
"time"
"github.com/prometheus/client_golang/prometheus"
)
const (
// CRIOOperationsKey is the key for CRI-O operation metrics.
CRIOOperationsKey = "crio_operations"
// CRIOOperationsLatencyKey is the key for the operation latency metrics.
CRIOOperationsLatencyKey = "crio_operations_latency_microseconds"
// CRIOOperationsErrorsKey is the key for the operation error metrics.
CRIOOperationsErrorsKey = "crio_operations_errors"
// TODO(runcom):
// timeouts
subsystem = "container_runtime"
)
var (
// CRIOOperations collects operation counts by operation type.
CRIOOperations = prometheus.NewCounterVec(
prometheus.CounterOpts{
Subsystem: subsystem,
Name: CRIOOperationsKey,
Help: "Cumulative number of CRI-O operations by operation type.",
},
[]string{"operation_type"},
)
// CRIOOperationsLatency collects operation latency numbers by operation
// type.
CRIOOperationsLatency = prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Subsystem: subsystem,
Name: CRIOOperationsLatencyKey,
Help: "Latency in microseconds of CRI-O operations. Broken down by operation type.",
},
[]string{"operation_type"},
)
// CRIOOperationsErrors collects operation errors by operation
// type.
CRIOOperationsErrors = prometheus.NewCounterVec(
prometheus.CounterOpts{
Subsystem: subsystem,
Name: CRIOOperationsErrorsKey,
Help: "Cumulative number of CRI-O operation errors by operation type.",
},
[]string{"operation_type"},
)
)
var registerMetrics sync.Once
// Register all metrics
func Register() {
registerMetrics.Do(func() {
prometheus.MustRegister(CRIOOperations)
prometheus.MustRegister(CRIOOperationsLatency)
prometheus.MustRegister(CRIOOperationsErrors)
})
}
// SinceInMicroseconds gets the time since the specified start in microseconds.
func SinceInMicroseconds(start time.Time) float64 {
return float64(time.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
}