windows_exporter/pkg/collector/license/license.go

108 lines
2.2 KiB
Go

//go:build windows
package license
import (
"github.com/alecthomas/kingpin/v2"
"github.com/go-kit/log"
"github.com/go-kit/log/level"
"github.com/prometheus-community/windows_exporter/pkg/headers/slc"
"github.com/prometheus-community/windows_exporter/pkg/types"
"github.com/prometheus/client_golang/prometheus"
)
const Name = "license"
var labelMap = map[slc.SL_GENUINE_STATE]string{
slc.SL_GEN_STATE_IS_GENUINE: "genuine",
slc.SL_GEN_STATE_INVALID_LICENSE: "invalid_license",
slc.SL_GEN_STATE_TAMPERED: "tampered",
slc.SL_GEN_STATE_OFFLINE: "offline",
slc.SL_GEN_STATE_LAST: "last",
}
type Config struct{}
var ConfigDefaults = Config{}
// A Collector is a Prometheus Collector for WMI Win32_PerfRawData_DNS_DNS metrics.
type Collector struct {
config Config
logger log.Logger
licenseStatus *prometheus.Desc
}
func New(logger log.Logger, config *Config) *Collector {
if config == nil {
config = &ConfigDefaults
}
c := &Collector{
config: *config,
}
c.SetLogger(logger)
return c
}
func NewWithFlags(_ *kingpin.Application) *Collector {
return &Collector{}
}
func (c *Collector) GetName() string {
return Name
}
func (c *Collector) SetLogger(logger log.Logger) {
c.logger = log.With(logger, "collector", Name)
}
func (c *Collector) GetPerfCounter() ([]string, error) {
return []string{}, nil
}
func (c *Collector) Close() error {
return nil
}
func (c *Collector) Build() error {
c.licenseStatus = prometheus.NewDesc(
prometheus.BuildFQName(types.Namespace, Name, "status"),
"Status of windows license",
[]string{"state"},
nil,
)
return nil
}
// Collect sends the metric values for each metric
// to the provided prometheus Metric channel.
func (c *Collector) Collect(_ *types.ScrapeContext, ch chan<- prometheus.Metric) error {
if err := c.collect(ch); err != nil {
_ = level.Error(c.logger).Log("msg", "failed collecting license metrics", "err", err)
return err
}
return nil
}
func (c *Collector) collect(ch chan<- prometheus.Metric) error {
status, err := slc.SLIsWindowsGenuineLocal()
if err != nil {
return err
}
for k, v := range labelMap {
val := 0.0
if status == k {
val = 1.0
}
ch <- prometheus.MustNewConstMetric(c.licenseStatus, prometheus.GaugeValue, val, v)
}
return nil
}