108 lines
2.5 KiB
Go
108 lines
2.5 KiB
Go
// +build windows
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package collector
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import (
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"github.com/prometheus-community/windows_exporter/headers/sysinfoapi"
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"github.com/prometheus-community/windows_exporter/log"
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"github.com/prometheus/client_golang/prometheus"
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)
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func init() {
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registerCollector("cs", NewCSCollector)
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}
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// A CSCollector is a Prometheus collector for WMI metrics
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type CSCollector struct {
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PhysicalMemoryBytes *prometheus.Desc
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LogicalProcessors *prometheus.Desc
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Hostname *prometheus.Desc
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}
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// NewCSCollector ...
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func NewCSCollector() (Collector, error) {
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const subsystem = "cs"
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return &CSCollector{
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LogicalProcessors: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "logical_processors"),
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"ComputerSystem.NumberOfLogicalProcessors",
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nil,
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nil,
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),
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PhysicalMemoryBytes: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "physical_memory_bytes"),
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"ComputerSystem.TotalPhysicalMemory",
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nil,
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nil,
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),
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Hostname: prometheus.NewDesc(
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prometheus.BuildFQName(Namespace, subsystem, "hostname"),
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"Labeled system hostname information as provided by ComputerSystem.DNSHostName and ComputerSystem.Domain",
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[]string{
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"hostname",
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"domain",
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"fqdn"},
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nil,
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),
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}, nil
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}
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// Collect sends the metric values for each metric
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// to the provided prometheus Metric channel.
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func (c *CSCollector) Collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) error {
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if desc, err := c.collect(ch); err != nil {
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log.Error("failed collecting cs metrics:", desc, err)
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return err
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}
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return nil
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}
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func (c *CSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
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// Get systeminfo for number of processors
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systemInfo := sysinfoapi.GetSystemInfo()
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// Get memory status for physical memory
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mem, err := sysinfoapi.GlobalMemoryStatusEx()
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if err != nil {
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return nil, err
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}
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ch <- prometheus.MustNewConstMetric(
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c.LogicalProcessors,
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prometheus.GaugeValue,
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float64(systemInfo.NumberOfProcessors),
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)
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ch <- prometheus.MustNewConstMetric(
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c.PhysicalMemoryBytes,
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prometheus.GaugeValue,
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float64(mem.TotalPhys),
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)
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hostname, err := sysinfoapi.GetComputerName(sysinfoapi.ComputerNameDNSHostname)
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if err != nil {
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return nil, err
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}
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domain, err := sysinfoapi.GetComputerName(sysinfoapi.ComputerNameDNSDomain)
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if err != nil {
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return nil, err
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}
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fqdn, err := sysinfoapi.GetComputerName(sysinfoapi.ComputerNameDNSFullyQualified)
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if err != nil {
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return nil, err
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}
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ch <- prometheus.MustNewConstMetric(
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c.Hostname,
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prometheus.GaugeValue,
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1.0,
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hostname,
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domain,
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fqdn,
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)
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return nil, nil
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}
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