8000 Add more metrics by SuperQ · Pull Request #193 · jetkvm/kvm · GitHub
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Add more metrics #193

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Add more metrics #193

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22 changes: 22 additions & 0 deletions config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@ import (
"sync"

"github.com/jetkvm/kvm/internal/usbgadget"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)

type WakeOnLanDevice struct {
Expand Down Expand Up @@ -129,6 +131,21 @@ var (
configLock = &sync.Mutex{}
)

var (
configSuccess = promauto.NewGauge(
prometheus.GaugeOpts{
Name: "jetkvm_config_last_reload_successful",
Help: "The last configuration load succeeded",
},
)
configSuccessTime = promauto.NewGauge(
prometheus.GaugeOpts{
Name: "jetkvm_config_last_reload_success_timestamp_seconds",
Help: "Timestamp of last successful config load",
},
)
)

func LoadConfig() {
configLock.Lock()
defer configLock.Unlock()
Expand All @@ -144,6 +161,8 @@ func LoadConfig() {
file, err := os.Open(configPath)
if err != nil {
logger.Debug().Msg("default config file doesn't exist, using default")
configSuccess.Set(1.0)
configSuccessTime.SetToCurrentTime()
return
}
defer file.Close()
Expand All @@ -152,6 +171,7 @@ func LoadConfig() {
loadedConfig := *defaultConfig
if err := json.NewDecoder(file).Decode(&loadedConfig); err != nil {
logger.Warn().Err(err).Msg("config file JSON parsing failed")
configSuccess.Set(0.0)
return
}

Expand All @@ -164,6 +184,8 @@ func LoadConfig() {
loadedConfig.UsbDevices = defaultConfig.UsbDevices
}

configSuccess.Set(1.0)
configSuccessTime.SetToCurrentTime()
config = &loadedConfig

rootLogger.UpdateLogLevel()
Expand Down
19 changes: 19 additions & 0 deletions wol.go
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Original file line number Diff line number Diff line change
Expand Up @@ -6,11 +6,27 @@ import (
"net"
)

var (
wolPackets = promauto.NewCounter(
prometheus.CounterOpts{
Name: "jetkvm_wol_sent_packets_total",
Help: "Total number of Wake-on-LAN magic packets sent.",
},
)
wolErrors = promauto.NewCounter(
prometheus.CounterOpts{
Name: "jetkvm_wol_sent_packet_errors_total",
Help: "Total number of Wake-on-LAN magic packets errors.",
},
)
)

// SendWOLMagicPacket sends a Wake-on-LAN magic packet to the specified MAC address
func rpcSendWOLMagicPacket(macAddress string) error {
// Parse the MAC address
mac, err := net.ParseMAC(macAddress)
if err != nil {
wolErrors.Inc()
return ErrorfL(wolLogger, "invalid MAC address", err)
}

Expand All @@ -20,17 +36,20 @@ func rpcSendWOLMagicPacket(macAddress string) error {
// Set up UDP connection
conn, err := net.Dial("udp", "255.255.255.255:9")
if err != nil {
wolErrors.Inc()
return ErrorfL(wolLogger, "failed to establish UDP connection", err)
}
defer conn.Close()

// Send the packet
_, err = conn.Write(packet)
if err != nil {
wolErrors.Inc()
return ErrorfL(wolLogger, "failed to send WOL packet", err)
}

wolLogger.Info().Str("mac", macAddress).Msg("WOL packet sent")
wolPackets.Inc()

return nil
}
Expand Down
0