320 lines
7.7 KiB
Go
320 lines
7.7 KiB
Go
//go:build windows
|
|
// +build windows
|
|
|
|
package collector
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
"syscall"
|
|
|
|
"github.com/prometheus-community/windows_exporter/log"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/yusufpapurcu/wmi"
|
|
"golang.org/x/sys/windows"
|
|
"golang.org/x/sys/windows/svc/mgr"
|
|
"gopkg.in/alecthomas/kingpin.v2"
|
|
)
|
|
|
|
func init() {
|
|
registerCollector("service", NewserviceCollector)
|
|
}
|
|
|
|
var (
|
|
serviceWhereClause = kingpin.Flag(
|
|
"collector.service.services-where",
|
|
"WQL 'where' clause to use in WMI metrics query. Limits the response to the services you specify and reduces the size of the response.",
|
|
).Default("").String()
|
|
useAPI = kingpin.Flag(
|
|
"collector.service.use-api",
|
|
"Use API calls to collect service data instead of WMI. Flag 'collector.service.services-where' won't be effective.",
|
|
).Default("false").Bool()
|
|
)
|
|
|
|
// A serviceCollector is a Prometheus collector for WMI Win32_Service metrics
|
|
type serviceCollector struct {
|
|
Information *prometheus.Desc
|
|
State *prometheus.Desc
|
|
StartMode *prometheus.Desc
|
|
Status *prometheus.Desc
|
|
|
|
queryWhereClause string
|
|
}
|
|
|
|
// NewserviceCollector ...
|
|
func NewserviceCollector() (Collector, error) {
|
|
const subsystem = "service"
|
|
|
|
if *serviceWhereClause == "" {
|
|
log.Warn("No where-clause specified for service collector. This will generate a very large number of metrics!")
|
|
}
|
|
if *useAPI {
|
|
log.Warn("API collection is enabled.")
|
|
}
|
|
|
|
return &serviceCollector{
|
|
Information: prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "info"),
|
|
"A metric with a constant '1' value labeled with service information",
|
|
[]string{"name", "display_name", "process_id", "run_as"},
|
|
nil,
|
|
),
|
|
State: prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "state"),
|
|
"The state of the service (State)",
|
|
[]string{"name", "state"},
|
|
nil,
|
|
),
|
|
StartMode: prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "start_mode"),
|
|
"The start mode of the service (StartMode)",
|
|
[]string{"name", "start_mode"},
|
|
nil,
|
|
),
|
|
Status: prometheus.NewDesc(
|
|
prometheus.BuildFQName(Namespace, subsystem, "status"),
|
|
"The status of the service (Status)",
|
|
[]string{"name", "status"},
|
|
nil,
|
|
),
|
|
queryWhereClause: *serviceWhereClause,
|
|
}, nil
|
|
}
|
|
|
|
// Collect sends the metric values for each metric
|
|
// to the provided prometheus Metric channel.
|
|
func (c *serviceCollector) Collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) error {
|
|
if *useAPI {
|
|
if err := c.collectAPI(ch); err != nil {
|
|
log.Error("failed collecting API service metrics:", err)
|
|
return err
|
|
}
|
|
} else {
|
|
if err := c.collectWMI(ch); err != nil {
|
|
log.Error("failed collecting WMI service metrics:", err)
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Win32_Service docs:
|
|
// - https://msdn.microsoft.com/en-us/library/aa394418(v=vs.85).aspx
|
|
type Win32_Service struct {
|
|
DisplayName string
|
|
Name string
|
|
ProcessId uint32
|
|
State string
|
|
Status string
|
|
StartMode string
|
|
StartName *string
|
|
}
|
|
|
|
var (
|
|
allStates = []string{
|
|
"stopped",
|
|
"start pending",
|
|
"stop pending",
|
|
"running",
|
|
"continue pending",
|
|
"pause pending",
|
|
"paused",
|
|
"unknown",
|
|
}
|
|
apiStateValues = map[uint]string{
|
|
windows.SERVICE_CONTINUE_PENDING: "continue pending",
|
|
windows.SERVICE_PAUSE_PENDING: "pause pending",
|
|
windows.SERVICE_PAUSED: "paused",
|
|
windows.SERVICE_RUNNING: "running",
|
|
windows.SERVICE_START_PENDING: "start pending",
|
|
windows.SERVICE_STOP_PENDING: "stop pending",
|
|
windows.SERVICE_STOPPED: "stopped",
|
|
}
|
|
allStartModes = []string{
|
|
"boot",
|
|
"system",
|
|
"auto",
|
|
"manual",
|
|
"disabled",
|
|
}
|
|
apiStartModeValues = map[uint32]string{
|
|
windows.SERVICE_AUTO_START: "auto",
|
|
windows.SERVICE_BOOT_START: "boot",
|
|
windows.SERVICE_DEMAND_START: "manual",
|
|
windows.SERVICE_DISABLED: "disabled",
|
|
windows.SERVICE_SYSTEM_START: "system",
|
|
}
|
|
allStatuses = []string{
|
|
"ok",
|
|
"error",
|
|
"degraded",
|
|
"unknown",
|
|
"pred fail",
|
|
"starting",
|
|
"stopping",
|
|
"service",
|
|
"stressed",
|
|
"nonrecover",
|
|
"no contact",
|
|
"lost comm",
|
|
}
|
|
)
|
|
|
|
func (c *serviceCollector) collectWMI(ch chan<- prometheus.Metric) error {
|
|
var dst []Win32_Service
|
|
q := queryAllWhere(&dst, c.queryWhereClause)
|
|
if err := wmi.Query(q, &dst); err != nil {
|
|
return err
|
|
}
|
|
for _, service := range dst {
|
|
pid := fmt.Sprintf("%d", uint64(service.ProcessId))
|
|
|
|
runAs := ""
|
|
if service.StartName != nil {
|
|
runAs = *service.StartName
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.Information,
|
|
prometheus.GaugeValue,
|
|
1.0,
|
|
strings.ToLower(service.Name),
|
|
service.DisplayName,
|
|
pid,
|
|
runAs,
|
|
)
|
|
|
|
for _, state := range allStates {
|
|
isCurrentState := 0.0
|
|
if state == strings.ToLower(service.State) {
|
|
isCurrentState = 1.0
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.State,
|
|
prometheus.GaugeValue,
|
|
isCurrentState,
|
|
strings.ToLower(service.Name),
|
|
state,
|
|
)
|
|
}
|
|
|
|
for _, startMode := range allStartModes {
|
|
isCurrentStartMode := 0.0
|
|
if startMode == strings.ToLower(service.StartMode) {
|
|
isCurrentStartMode = 1.0
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.StartMode,
|
|
prometheus.GaugeValue,
|
|
isCurrentStartMode,
|
|
strings.ToLower(service.Name),
|
|
startMode,
|
|
)
|
|
}
|
|
|
|
for _, status := range allStatuses {
|
|
isCurrentStatus := 0.0
|
|
if status == strings.ToLower(service.Status) {
|
|
isCurrentStatus = 1.0
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.Status,
|
|
prometheus.GaugeValue,
|
|
isCurrentStatus,
|
|
strings.ToLower(service.Name),
|
|
status,
|
|
)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *serviceCollector) collectAPI(ch chan<- prometheus.Metric) error {
|
|
svcmgrConnection, err := mgr.Connect()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer svcmgrConnection.Disconnect() //nolint:errcheck
|
|
|
|
// List All Services from the Services Manager.
|
|
serviceList, err := svcmgrConnection.ListServices()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Iterate through the Services List.
|
|
for _, service := range serviceList {
|
|
// Get UTF16 service name.
|
|
serviceName, err := syscall.UTF16PtrFromString(service)
|
|
if err != nil {
|
|
log.Warnf("Service %s get name error: %#v", service, err)
|
|
continue
|
|
}
|
|
|
|
// Open connection for service handler.
|
|
serviceHandle, err := windows.OpenService(svcmgrConnection.Handle, serviceName, windows.GENERIC_READ)
|
|
if err != nil {
|
|
log.Warnf("Open service %s error: %#v", service, err)
|
|
continue
|
|
}
|
|
|
|
// Create handle for each service.
|
|
serviceManager := &mgr.Service{Name: service, Handle: serviceHandle}
|
|
defer serviceManager.Close()
|
|
|
|
// Get Service Configuration.
|
|
serviceConfig, err := serviceManager.Config()
|
|
if err != nil {
|
|
log.Warnf("Get ervice %s config error: %#v", service, err)
|
|
continue
|
|
}
|
|
|
|
// Get Service Current Status.
|
|
serviceStatus, err := serviceManager.Query()
|
|
if err != nil {
|
|
log.Warnf("Get service %s status error: %#v", service, err)
|
|
continue
|
|
}
|
|
|
|
pid := fmt.Sprintf("%d", uint64(serviceStatus.ProcessId))
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.Information,
|
|
prometheus.GaugeValue,
|
|
1.0,
|
|
strings.ToLower(service),
|
|
serviceConfig.DisplayName,
|
|
pid,
|
|
serviceConfig.ServiceStartName,
|
|
)
|
|
|
|
for _, state := range apiStateValues {
|
|
isCurrentState := 0.0
|
|
if state == apiStateValues[uint(serviceStatus.State)] {
|
|
isCurrentState = 1.0
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.State,
|
|
prometheus.GaugeValue,
|
|
isCurrentState,
|
|
strings.ToLower(service),
|
|
state,
|
|
)
|
|
}
|
|
|
|
for _, startMode := range apiStartModeValues {
|
|
isCurrentStartMode := 0.0
|
|
if startMode == apiStartModeValues[serviceConfig.StartType] {
|
|
isCurrentStartMode = 1.0
|
|
}
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.StartMode,
|
|
prometheus.GaugeValue,
|
|
isCurrentStartMode,
|
|
strings.ToLower(service),
|
|
startMode,
|
|
)
|
|
}
|
|
}
|
|
return nil
|
|
}
|