Exporter for machine metrics
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// +build !noattributes
package collector
import (
"github.com/golang/glog"
"github.com/prometheus/client_golang/prometheus"
)
type attributesCollector struct {
config Config
metric *prometheus.GaugeVec
}
func init() {
Factories["attributes"] = NewAttributesCollector
}
// Takes a config struct and prometheus registry and returns a new Collector exposing
// labels from the config.
func NewAttributesCollector(config Config) (Collector, error) {
labelNames := []string{}
for l := range config.Attributes {
labelNames = append(labelNames, l)
}
return &attributesCollector{
config: config,
metric: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: Namespace,
Name: "attributes",
Help: "The node_exporter attributes.",
},
labelNames,
),
}, nil
}
func (c *attributesCollector) Update(ch chan<- prometheus.Metric) (err error) {
glog.V(1).Info("Set node_attributes{%v}: 1", c.config.Attributes)
c.metric.Reset()
c.metric.With(c.config.Attributes).Set(1)
c.metric.Collect(ch)
return err
}