Rainbond/cmd/monitor/main.go
2018-08-01 18:49:31 +08:00

81 lines
2.4 KiB
Go

// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"github.com/Sirupsen/logrus"
"github.com/goodrain/rainbond/cmd/monitor/option"
"github.com/goodrain/rainbond/monitor"
"github.com/goodrain/rainbond/monitor/prometheus"
"github.com/spf13/pflag"
"os"
"os/signal"
"syscall"
"github.com/goodrain/rainbond/monitor/api"
"github.com/goodrain/rainbond/monitor/api/controller"
"net/http"
)
func main() {
c := option.NewConfig()
c.AddFlag(pflag.CommandLine)
c.AddPrometheusFlag(pflag.CommandLine)
pflag.Parse()
c.CompleteConfig()
// start prometheus daemon and watching tis status in all time, exit monitor process if start failed
a := prometheus.NewRulesManager(c)
p := prometheus.NewManager(c, a)
controllerManager := controller.NewControllerManager(a,p)
errChan := make(chan error, 1)
defer close(errChan)
p.StartDaemon(errChan)
defer p.StopDaemon()
// register prometheus address to etcd cluster
p.Registry.Start()
defer p.Registry.Stop()
// start watching components from etcd, and update modify to prometheus config
m := monitor.NewMonitor(c, p)
m.Start()
defer m.Stop()
r := api.APIServer(controllerManager)
logrus.Info("monitor api listen port 3329")
go http.ListenAndServe(":3329", r)
//step finally: listen Signal
term := make(chan os.Signal)
defer close(term)
signal.Notify(term, os.Interrupt, syscall.SIGTERM)
select {
case <-term:
logrus.Warn("Received SIGTERM, exiting monitor gracefully...")
case err := <-errChan:
if err != nil {
logrus.Errorf("Received a error %s from prometheus, exiting monitor gracefully...", err.Error())
}
}
logrus.Info("See you next time!")
}