62 lines
1.9 KiB
Plaintext
62 lines
1.9 KiB
Plaintext
package collector
|
|
import (
|
|
"github.com/StackExchange/wmi"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/common/log"
|
|
)
|
|
func init() {
|
|
Factories["{{ .CollectorName | toLower }}"] = New{{ .CollectorName }}Collector
|
|
}
|
|
// A {{ .CollectorName }}Collector is a Prometheus collector for WMI {{ .Class }} metrics
|
|
type {{ .CollectorName }}Collector struct {
|
|
{{- range $m := .Members }}
|
|
{{ $m.Name }} *prometheus.Desc
|
|
{{- end }}
|
|
}
|
|
// New{{ .CollectorName }}Collector ...
|
|
func New{{ .CollectorName }}Collector() (Collector, error) {
|
|
const subsystem = "{{ .CollectorName | toLower }}"
|
|
return &{{ .CollectorName }}Collector{
|
|
{{- range $m := .Members }}
|
|
{{ $m.Name }}: prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "{{ $m.Name | toSnakeCase }}"),
|
|
"({{ $m.Name }})",
|
|
nil,
|
|
nil,
|
|
),
|
|
{{- end }}
|
|
}, nil
|
|
}
|
|
// Collect sends the metric values for each metric
|
|
// to the provided prometheus Metric channel.
|
|
func (c *{{ .CollectorName }}Collector) Collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) error {
|
|
if desc, err := c.collect(ch); err != nil {
|
|
log.Error("failed collecting {{ .CollectorName | toLower }} metrics:", desc, err)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
// {{ .Class }} docs:
|
|
// - <add link to documentation here>
|
|
type {{ .Class }} struct {
|
|
Name string
|
|
{{ range $m := .Members }}
|
|
{{ $m.Name }} {{ $m.Type }}
|
|
{{- end }}
|
|
}
|
|
func (c *{{ .CollectorName }}Collector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
|
|
var dst []{{ .Class }}
|
|
q := queryAll(&dst)
|
|
if err := wmi.Query(q, &dst); err != nil {
|
|
return nil, err
|
|
}
|
|
{{ range $m := .Members }}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.{{ $m.Name }},
|
|
prometheus.GaugeValue,
|
|
float64(dst[0].{{ $m.Name }}),
|
|
)
|
|
{{ end }}
|
|
return nil, nil
|
|
}
|