-
Notifications
You must be signed in to change notification settings - Fork 3
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat: add prometheus metrics endpoints
- Loading branch information
Showing
4 changed files
with
151 additions
and
27 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| package monitoring | ||
|
|
||
| import ( | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| ) | ||
|
|
||
| var ( | ||
| processMemoryPercent = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "process_memory_percent", | ||
| Help: "Process memory usage percent", | ||
| }) | ||
| totalMemoryPercent = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "total_memory_percent", | ||
| Help: "Total memory usage percent", | ||
| }) | ||
| processMemoryMB = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "process_memory_mb", | ||
| Help: "Process memory usage in MB", | ||
| }) | ||
| processCPUPercent = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "process_cpu_percent", | ||
| Help: "Process CPU usage percent", | ||
| }) | ||
| totalCPUPercent = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "total_cpu_percent", | ||
| Help: "Total CPU usage percent", | ||
| }) | ||
| totalGoroutine = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "total_goroutine", | ||
| Help: "Total number of goroutines", | ||
| }) | ||
| openConnCount = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "open_conn_count", | ||
| Help: "Open connection count", | ||
| }) | ||
|
|
||
| backendTotalReqCount = prometheus.NewGaugeVec(prometheus.GaugeOpts{ | ||
| Name: "backend_total_request_count", | ||
| Help: "Total request count for each backend", | ||
| }, []string{"address"}) | ||
| backendAvgResTime = prometheus.NewGaugeVec(prometheus.GaugeOpts{ | ||
| Name: "backend_average_response_time", | ||
| Help: "Average response time for each backend", | ||
| }, []string{"address"}) | ||
| backendConnsCount = prometheus.NewGaugeVec(prometheus.GaugeOpts{ | ||
| Name: "backend_connection_count", | ||
| Help: "Number of connections for each backend", | ||
| }, []string{"address"}) | ||
| backendAlive = prometheus.NewGaugeVec(prometheus.GaugeOpts{ | ||
| Name: "backend_alive", | ||
| Help: "Whether the backend is alive or not", | ||
| }, []string{"address"}) | ||
| ) | ||
|
|
||
| func init_prometheus() { | ||
| prometheus.MustRegister(processMemoryPercent) | ||
| prometheus.MustRegister(totalMemoryPercent) | ||
| prometheus.MustRegister(processMemoryMB) | ||
| prometheus.MustRegister(processCPUPercent) | ||
| prometheus.MustRegister(totalCPUPercent) | ||
| prometheus.MustRegister(totalGoroutine) | ||
| prometheus.MustRegister(openConnCount) | ||
| prometheus.MustRegister(backendTotalReqCount) | ||
| prometheus.MustRegister(backendAvgResTime) | ||
| prometheus.MustRegister(backendConnsCount) | ||
| prometheus.MustRegister(backendAlive) | ||
| } | ||
|
|
||
| func updatePrometheusMetrics(m Monitoring) { | ||
| processMemoryPercent.Set(float64(m.Memory.ProcessPercent)) | ||
| totalMemoryPercent.Set(float64(m.Memory.TotalPercent)) | ||
| processMemoryMB.Set(m.Memory.ProcessMB) | ||
| processCPUPercent.Set(m.Cpu.ProcessPercent) | ||
| totalCPUPercent.Set(m.Cpu.TotalPercent) | ||
| totalGoroutine.Set(float64(m.TotalGoroutine)) | ||
| openConnCount.Set(float64(m.OpenConnectionCount)) | ||
|
|
||
| for _, backend := range m.Backends { | ||
| backendTotalReqCount.WithLabelValues(backend.Addr).Set(float64(backend.TotalReqCount)) | ||
| backendAvgResTime.WithLabelValues(backend.Addr).Set(backend.AvgResTime) | ||
| backendConnsCount.WithLabelValues(backend.Addr).Set(float64(backend.ConnsCount)) | ||
| backendAlive.WithLabelValues(backend.Addr).Set(func() float64 { | ||
| if backend.IsHostAlive { | ||
| return 1 | ||
| } | ||
| return 0 | ||
| }()) | ||
| } | ||
| } |