Add monitor/debug packages

debug/handler/debug.go

@@ -0,0 +1,41 @@
+package handler
+
+import (
+	"context"
+	"runtime"
+	"time"
+
+	proto "github.com/micro/go-micro/debug/proto"
+)
+
+type Debug struct {
+	proto.DebugHandler
+	started int64
+}
+
+var (
+	DefaultHandler = newDebug()
+)
+
+func newDebug() *Debug {
+	return &Debug{
+		started: time.Now().Unix(),
+	}
+}
+
+func (d *Debug) Health(ctx context.Context, req *proto.HealthRequest, rsp *proto.HealthResponse) error {
+	rsp.Status = "ok"
+	return nil
+}
+
+func (d *Debug) Stats(ctx context.Context, req *proto.StatsRequest, rsp *proto.StatsResponse) error {
+	var mstat runtime.MemStats
+	runtime.ReadMemStats(&mstat)
+
+	rsp.Started = uint64(d.started)
+	rsp.Uptime = uint64(time.Now().Unix() - d.started)
+	rsp.Memory = mstat.Alloc
+	rsp.Gc = mstat.PauseTotalNs
+	rsp.Threads = uint64(runtime.NumGoroutine())
+	return nil
+}