78 lines
2.3 KiB
Go
78 lines
2.3 KiB
Go
package metrics
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import (
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"fmt"
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"tailscale-exporter/pkg/tailscale"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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)
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func collectDevices(client *tailscale.Client) []prometheus.Collector {
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deviceExpiry := prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "tailscale_devices_expiry_time",
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Help: "The expiry time of devices authentication",
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ConstLabels: prometheus.Labels{
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"tailnet": client.GetTailnet(),
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},
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},
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[]string{"id", "created", "name"},
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)
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deviceSecondsRemaining := prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "tailscale_devices_expiry_seconds_remaining",
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Help: "The number of seconds remaining until a device expires",
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ConstLabels: prometheus.Labels{
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"tailnet": client.GetTailnet(),
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},
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},
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[]string{"id", "created", "name"},
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)
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deviceUpdateAvailable := prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "tailscale_devices_update_available",
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Help: "If the device can be updated (1) or is running the latest version of Tailscale (0)",
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ConstLabels: prometheus.Labels{
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"tailnet": client.GetTailnet(),
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},
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},
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[]string{"id", "created", "name", "version"},
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)
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go func() {
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for {
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devices, err := client.GetDevices()
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if err != nil {
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fmt.Println("Failed to get devices: ", err)
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} else {
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// Reset gauges so we don't leave old devices around
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deviceExpiry.Reset()
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deviceSecondsRemaining.Reset()
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deviceUpdateAvailable.Reset()
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for _, device := range devices {
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if !device.KeyExpiryDisabled {
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remainingSeconds := time.Until(device.Expires.Time).Seconds()
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deviceExpiry.With(prometheus.Labels{"id": device.ID, "created": device.Created.String(), "name": device.Name}).Set(float64(device.Expires.Unix()))
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deviceSecondsRemaining.With(prometheus.Labels{"id": device.ID, "created": device.Created.String(), "name": device.Name}).Set(remainingSeconds)
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}
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updateAvailable := 0.0
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if device.UpdateAvailable {
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updateAvailable = 1.0
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}
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deviceUpdateAvailable.With(prometheus.Labels{"id": device.ID, "created": device.Created.String(), "name": device.Name, "version": device.ClientVersion}).Set(updateAvailable)
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}
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}
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time.Sleep(60 * time.Second)
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}
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}()
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return []prometheus.Collector{deviceExpiry, deviceSecondsRemaining, deviceUpdateAvailable}
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}
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