mirror of
https://github.com/grafana/grafana.git
synced 2024-12-01 21:19:28 -06:00
112 lines
2.7 KiB
Go
112 lines
2.7 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"os"
|
|
"time"
|
|
|
|
"golang.org/x/sync/errgroup"
|
|
|
|
"github.com/grafana/grafana/pkg/api"
|
|
"github.com/grafana/grafana/pkg/log"
|
|
"github.com/grafana/grafana/pkg/login"
|
|
"github.com/grafana/grafana/pkg/metrics"
|
|
"github.com/grafana/grafana/pkg/models"
|
|
"github.com/grafana/grafana/pkg/plugins"
|
|
"github.com/grafana/grafana/pkg/services/alerting"
|
|
"github.com/grafana/grafana/pkg/services/cleanup"
|
|
"github.com/grafana/grafana/pkg/services/eventpublisher"
|
|
"github.com/grafana/grafana/pkg/services/notifications"
|
|
"github.com/grafana/grafana/pkg/services/search"
|
|
"github.com/grafana/grafana/pkg/setting"
|
|
"github.com/grafana/grafana/pkg/social"
|
|
)
|
|
|
|
func NewGrafanaServer() models.GrafanaServer {
|
|
rootCtx, shutdownFn := context.WithCancel(context.Background())
|
|
childRoutines, childCtx := errgroup.WithContext(rootCtx)
|
|
|
|
return &GrafanaServerImpl{
|
|
context: childCtx,
|
|
shutdownFn: shutdownFn,
|
|
childRoutines: childRoutines,
|
|
log: log.New("server"),
|
|
}
|
|
}
|
|
|
|
type GrafanaServerImpl struct {
|
|
context context.Context
|
|
shutdownFn context.CancelFunc
|
|
childRoutines *errgroup.Group
|
|
log log.Logger
|
|
}
|
|
|
|
func (g *GrafanaServerImpl) Start() {
|
|
go listenToSystemSignals(g)
|
|
|
|
writePIDFile()
|
|
initRuntime()
|
|
initSql()
|
|
metrics.Init()
|
|
search.Init()
|
|
login.Init()
|
|
social.NewOAuthService()
|
|
eventpublisher.Init()
|
|
plugins.Init()
|
|
|
|
// init alerting
|
|
if setting.AlertingEnabled && setting.ExecuteAlerts {
|
|
engine := alerting.NewEngine()
|
|
g.childRoutines.Go(func() error { return engine.Run(g.context) })
|
|
}
|
|
|
|
// cleanup service
|
|
cleanUpService := cleanup.NewCleanUpService()
|
|
g.childRoutines.Go(func() error { return cleanUpService.Run(g.context) })
|
|
|
|
if err := notifications.Init(); err != nil {
|
|
g.log.Error("Notification service failed to initialize", "erro", err)
|
|
g.Shutdown(1, "Startup failed")
|
|
return
|
|
}
|
|
|
|
g.startHttpServer()
|
|
}
|
|
|
|
func (g *GrafanaServerImpl) startHttpServer() {
|
|
httpServer := api.NewHttpServer()
|
|
|
|
err := httpServer.Start(g.context)
|
|
|
|
if err != nil {
|
|
g.log.Error("Fail to start server", "error", err)
|
|
g.Shutdown(1, "Startup failed")
|
|
return
|
|
}
|
|
}
|
|
|
|
func (g *GrafanaServerImpl) Shutdown(code int, reason string) {
|
|
g.log.Info("Shutdown started", "code", code, "reason", reason)
|
|
|
|
g.shutdownFn()
|
|
err := g.childRoutines.Wait()
|
|
|
|
g.log.Info("Shutdown completed", "reason", err)
|
|
log.Close()
|
|
os.Exit(code)
|
|
}
|
|
|
|
// implement context.Context
|
|
func (g *GrafanaServerImpl) Deadline() (deadline time.Time, ok bool) {
|
|
return g.context.Deadline()
|
|
}
|
|
func (g *GrafanaServerImpl) Done() <-chan struct{} {
|
|
return g.context.Done()
|
|
}
|
|
func (g *GrafanaServerImpl) Err() error {
|
|
return g.context.Err()
|
|
}
|
|
func (g *GrafanaServerImpl) Value(key interface{}) interface{} {
|
|
return g.context.Value(key)
|
|
}
|