func NewEruApp(container *docker.Container, extend map[string]interface{}) *EruApp {
name, entrypoint, ident := utils.GetAppInfo(container.Name)
if name == "" {
logs.Info("Container name invaild", container.Name)
return nil
}
logs.Debug("Eru App", name, entrypoint, ident)
transfer, _ := g.Transfers.Get(container.ID, 0)
client := falcon.CreateFalconClient(
transfer,
time.Duration(g.Config.Metrics.Timeout)*time.Millisecond,
)
step := time.Duration(g.Config.Metrics.Step) * time.Second
extend["hostname"] = g.Config.HostName
extend["cid"] = container.ID[:12]
extend["ident"] = ident
tag := []string{}
for k, v := range extend {
tag = append(tag, fmt.Sprintf("%s=%v", k, v))
}
endpoint := fmt.Sprintf("%s-%s", name, entrypoint)
meta := defines.Meta{container.ID, container.State.Pid, name, entrypoint, ident, extend}
metric := metric.CreateMetric(step, client, strings.Join(tag, ","), endpoint)
eruApp := &EruApp{meta, metric}
return eruApp
}
func start_watcher(client metric.Remote, cid string, pid int) {
serv := metric.CreateMetric(time.Duration(5)*time.Second, client, "a.b", fmt.Sprintf("test_%s", cid[:7]))
if err := serv.InitMetric(cid, pid); err != nil {
fmt.Println("failed", err)
return
}
t := time.NewTicker(serv.Step)
defer t.Stop()
fmt.Println("begin watch", cid)
for {
select {
case now := <-t.C:
go func() {
if info, err := serv.UpdateStats(cid); err == nil {
fmt.Println(info)
rate := serv.CalcRate(info, now)
serv.SaveLast(info)
// for safe
fmt.Println(rate)
go serv.Send(rate)
}
}()
case <-serv.Stop:
return
}
}
}