containerd/vendor/github.com/crosbymichael/cgroups/prometheus/metric.go
Michael Crosby f36feb2ed4 Add prometheus container level metrics
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-03-22 11:44:25 -07:00

33 lines
846 B
Go

package prometheus
import (
"github.com/crosbymichael/cgroups"
metrics "github.com/docker/go-metrics"
"github.com/prometheus/client_golang/prometheus"
)
type value struct {
v float64
l []string
}
type metric struct {
name string
help string
unit metrics.Unit
vt prometheus.ValueType
labels []string
// getValues returns the value and labels for the data
getValues func(stats *cgroups.Stats) []value
}
func (m *metric) desc(ns *metrics.Namespace) *prometheus.Desc {
return ns.NewDesc(m.name, m.help, m.unit, append([]string{"id"}, m.labels...)...)
}
func (m *metric) collect(id string, stats *cgroups.Stats, ns *metrics.Namespace, ch chan<- prometheus.Metric) {
values := m.getValues(stats)
for _, v := range values {
ch <- prometheus.MustNewConstMetric(m.desc(ns), m.vt, v.v, append([]string{id}, v.l...)...)
}
}