forked from goodrain/rainbond
/
manager.go
149 lines (131 loc) · 4.07 KB
/
manager.go
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// 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 api
import (
"fmt"
"net/http"
"strconv"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/goodrain/rainbond/discover"
"github.com/goodrain/rainbond/node/kubecache"
"github.com/goodrain/rainbond/node/masterserver"
"github.com/goodrain/rainbond/node/statsd"
"github.com/goodrain/rainbond/node/api/controller"
"github.com/goodrain/rainbond/node/api/router"
"context"
"strings"
"github.com/goodrain/rainbond/cmd/node/option"
nodeclient "github.com/goodrain/rainbond/node/nodem/client"
_ "net/http/pprof"
"github.com/Sirupsen/logrus"
client "github.com/coreos/etcd/clientv3"
"github.com/go-chi/chi"
)
//Manager api manager
type Manager struct {
ctx context.Context
cancel context.CancelFunc
conf option.Conf
router *chi.Mux
node *nodeclient.HostNode
lID client.LeaseID // lease id
ms *masterserver.MasterServer
keepalive *discover.KeepAlive
exporter *statsd.Exporter
}
//NewManager api manager
func NewManager(c option.Conf, node *nodeclient.HostNode, ms *masterserver.MasterServer, kubecli kubecache.KubeClient) *Manager {
r := router.Routers(c.RunMode)
ctx, cancel := context.WithCancel(context.Background())
controller.Init(&c, ms, kubecli)
m := &Manager{
ctx: ctx,
cancel: cancel,
conf: c,
router: r,
node: node,
ms: ms,
}
// set node cluster monitor route
m.router.Get("/cluster/metrics", m.HandleClusterScrape)
return m
}
//Start 启动
func (m *Manager) Start(errChan chan error) error {
logrus.Infof("api server start listening on %s", m.conf.APIAddr)
go func() {
if err := http.ListenAndServe(m.conf.APIAddr, m.router); err != nil {
logrus.Error("rainbond node api listen error.", err.Error())
errChan <- err
}
}()
go func() {
if err := http.ListenAndServe(":6102", nil); err != nil {
logrus.Error("rainbond node debug api listen error.", err.Error())
errChan <- err
}
}()
if m.conf.RunMode == "master" {
portinfo := strings.Split(m.conf.APIAddr, ":")
var port int
if len(portinfo) != 2 {
port = 6100
} else {
var err error
port, err = strconv.Atoi(portinfo[1])
if err != nil {
return fmt.Errorf("get the api port info error.%s", err.Error())
}
}
keepalive, err := discover.CreateKeepAlive(m.conf.Etcd.Endpoints, "acp_node", m.node.HostName, m.node.InternalIP, port)
if err != nil {
return err
}
if err := keepalive.Start(); err != nil {
return err
}
}
return nil
}
//Stop 停止
func (m *Manager) Stop() error {
logrus.Info("api server is stoping.")
m.cancel()
if m.keepalive != nil {
m.keepalive.Stop()
}
return nil
}
//GetRouter GetRouter
func (m *Manager) GetRouter() *chi.Mux {
return m.router
}
//HandleClusterScrape prometheus handle
func (m *Manager) HandleClusterScrape(w http.ResponseWriter, r *http.Request) {
gatherers := prometheus.Gatherers{
prometheus.DefaultGatherer,
}
if m.ms != nil {
gatherers = append(gatherers, m.ms.GetRegistry())
}
// Delegate http serving to Prometheus client library, which will call collector.Collect.
h := promhttp.HandlerFor(gatherers,
promhttp.HandlerOpts{
ErrorLog: logrus.StandardLogger(),
ErrorHandling: promhttp.ContinueOnError,
})
h.ServeHTTP(w, r)
}