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metrics.go
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metrics.go
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package docks
import (
"sync"
"sync/atomic"
"time"
"github.com/tevino/abool"
"github.com/safing/portbase/api"
"github.com/safing/portbase/metrics"
)
var (
newCranes *metrics.Counter
newPublicCranes *metrics.Counter
newAuthenticatedCranes *metrics.Counter
trafficBytesPublicCranes *metrics.Counter
trafficBytesAuthenticatedCranes *metrics.Counter
trafficBytesPrivateCranes *metrics.Counter
newExpandOp *metrics.Counter
expandOpDurationHistogram *metrics.Histogram
expandOpRelayedDataHistogram *metrics.Histogram
metricsRegistered = abool.New()
)
func registerMetrics() (err error) {
// Only register metrics once.
if !metricsRegistered.SetToIf(false, true) {
return nil
}
// Total Crane Stats.
newCranes, err = metrics.NewCounter(
"spn/cranes/total",
nil,
&metrics.Options{
Name: "SPN New Cranes",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
newPublicCranes, err = metrics.NewCounter(
"spn/cranes/public/total",
nil,
&metrics.Options{
Name: "SPN New Public Cranes",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
newAuthenticatedCranes, err = metrics.NewCounter(
"spn/cranes/authenticated/total",
nil,
&metrics.Options{
Name: "SPN New Authenticated Cranes",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
// Active Crane Stats.
_, err = metrics.NewGauge(
"spn/cranes/active",
map[string]string{
"status": "public",
},
getActivePublicCranes,
&metrics.Options{
Name: "SPN Active Public Cranes",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
_, err = metrics.NewGauge(
"spn/cranes/active",
map[string]string{
"status": "authenticated",
},
getActiveAuthenticatedCranes,
&metrics.Options{
Name: "SPN Active Authenticated Cranes",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
_, err = metrics.NewGauge(
"spn/cranes/active",
map[string]string{
"status": "private",
},
getActivePrivateCranes,
&metrics.Options{
Name: "SPN Active Private Cranes",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
_, err = metrics.NewGauge(
"spn/cranes/active",
map[string]string{
"status": "stopping",
},
getActiveStoppingCranes,
&metrics.Options{
Name: "SPN Active Stopping Cranes",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
// Crane Traffic Stats.
trafficBytesPublicCranes, err = metrics.NewCounter(
"spn/cranes/bytes",
map[string]string{
"status": "public",
},
&metrics.Options{
Name: "SPN Public Crane Traffic",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
trafficBytesAuthenticatedCranes, err = metrics.NewCounter(
"spn/cranes/bytes",
map[string]string{
"status": "authenticated",
},
&metrics.Options{
Name: "SPN Authenticated Crane Traffic",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
trafficBytesPrivateCranes, err = metrics.NewCounter(
"spn/cranes/bytes",
map[string]string{
"status": "private",
},
&metrics.Options{
Name: "SPN Private Crane Traffic",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
// Lane Stats.
_, err = metrics.NewGauge(
"spn/lanes/latency/avg/seconds",
nil,
getAvgLaneLatencyStat,
&metrics.Options{
Name: "SPN Avg Lane Latency",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
_, err = metrics.NewGauge(
"spn/lanes/latency/min/seconds",
nil,
getMinLaneLatencyStat,
&metrics.Options{
Name: "SPN Min Lane Latency",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
_, err = metrics.NewGauge(
"spn/lanes/capacity/avg/bytes",
nil,
getAvgLaneCapacityStat,
&metrics.Options{
Name: "SPN Avg Lane Capacity",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
_, err = metrics.NewGauge(
"spn/lanes/capacity/max/bytes",
nil,
getMaxLaneCapacityStat,
&metrics.Options{
Name: "SPN Max Lane Capacity",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
// Expand Op Stats.
newExpandOp, err = metrics.NewCounter(
"spn/op/expand/total",
nil,
&metrics.Options{
Name: "SPN Total Expand Operations",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
_, err = metrics.NewGauge(
"spn/op/expand/active",
nil,
getActiveExpandOpsStat,
&metrics.Options{
Name: "SPN Active Expand Operations",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
expandOpDurationHistogram, err = metrics.NewHistogram(
"spn/op/expand/histogram/duration/seconds",
nil,
&metrics.Options{
Name: "SPN Expand Operation Duration Histogram",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
expandOpRelayedDataHistogram, err = metrics.NewHistogram(
"spn/op/expand/histogram/traffic/bytes",
nil,
&metrics.Options{
Name: "SPN Expand Operation Relayed Data Histogram",
Permission: api.PermitUser,
},
)
if err != nil {
return err
}
return err
}
func getActiveExpandOpsStat() float64 {
return float64(atomic.LoadInt64(activeExpandOps))
}
var (
craneStats *craneGauges
craneStatsExpires time.Time
craneStatsLock sync.Mutex
craneStatsTTL = 55 * time.Second
)
type craneGauges struct {
publicActive float64
authenticatedActive float64
privateActive float64
stoppingActive float64
laneLatencyAvg float64
laneLatencyMin float64
laneCapacityAvg float64
laneCapacityMax float64
}
func getActivePublicCranes() float64 { return getCraneStats().publicActive }
func getActiveAuthenticatedCranes() float64 { return getCraneStats().authenticatedActive }
func getActivePrivateCranes() float64 { return getCraneStats().privateActive }
func getActiveStoppingCranes() float64 { return getCraneStats().stoppingActive }
func getAvgLaneLatencyStat() float64 { return getCraneStats().laneLatencyAvg }
func getMinLaneLatencyStat() float64 { return getCraneStats().laneLatencyMin }
func getAvgLaneCapacityStat() float64 { return getCraneStats().laneCapacityAvg }
func getMaxLaneCapacityStat() float64 { return getCraneStats().laneCapacityMax }
func getCraneStats() *craneGauges {
craneStatsLock.Lock()
defer craneStatsLock.Unlock()
// Return cache if still valid.
if time.Now().Before(craneStatsExpires) {
return craneStats
}
// Refresh.
craneStats = &craneGauges{}
var laneStatCnt float64
for _, crane := range getAllCranes() {
switch {
case crane.Stopped():
continue
case crane.IsStopping():
craneStats.stoppingActive++
continue
case crane.Public():
craneStats.publicActive++
case crane.Authenticated():
craneStats.authenticatedActive++
continue
default:
craneStats.privateActive++
continue
}
// Get lane stats.
if crane.ConnectedHub == nil {
continue
}
measurements := crane.ConnectedHub.GetMeasurements()
laneLatency, _ := measurements.GetLatency()
if laneLatency == 0 {
continue
}
laneCapacity, _ := measurements.GetCapacity()
if laneCapacity == 0 {
continue
}
// Only use data if both latency and capacity is available.
laneStatCnt++
// Convert to base unit: seconds.
latency := laneLatency.Seconds()
// Add to avg and set min if lower.
craneStats.laneLatencyAvg += latency
if craneStats.laneLatencyMin > latency || craneStats.laneLatencyMin == 0 {
craneStats.laneLatencyMin = latency
}
// Convert in base unit: bytes.
capacity := float64(laneCapacity) / 8
// Add to avg and set max if higher.
craneStats.laneCapacityAvg += capacity
if craneStats.laneCapacityMax < capacity {
craneStats.laneCapacityMax = capacity
}
}
// Create averages.
if laneStatCnt > 0 {
craneStats.laneLatencyAvg /= laneStatCnt
craneStats.laneCapacityAvg /= laneStatCnt
}
craneStatsExpires = time.Now().Add(craneStatsTTL)
return craneStats
}
func (crane *Crane) submitCraneTrafficStats(bytes int) {
switch {
case crane.Stopped():
return
case crane.Public():
trafficBytesPublicCranes.Add(bytes)
case crane.Authenticated():
trafficBytesAuthenticatedCranes.Add(bytes)
default:
trafficBytesPrivateCranes.Add(bytes)
}
}