mirror of
https://github.com/cgrates/cgrates.git
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279 lines
9.3 KiB
Go
279 lines
9.3 KiB
Go
/*
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Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package services
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import (
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"flag"
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"fmt"
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"os"
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"os/signal"
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"strconv"
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"strings"
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"sync"
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"syscall"
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"time"
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"github.com/cgrates/birpc"
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"github.com/cgrates/birpc/context"
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"github.com/cgrates/cgrates/apis"
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"github.com/cgrates/cgrates/commonlisteners"
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"github.com/cgrates/cgrates/config"
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"github.com/cgrates/cgrates/engine"
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"github.com/cgrates/cgrates/guardian"
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"github.com/cgrates/cgrates/loaders"
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"github.com/cgrates/cgrates/servmanager"
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"github.com/cgrates/cgrates/utils"
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)
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func NewCGREngineFlags() *CGREngineFlags {
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fs := flag.NewFlagSet(utils.CgrEngine, flag.ExitOnError)
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return &CGREngineFlags{
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FlagSet: fs,
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CfgPath: fs.String(utils.CfgPathCgr, utils.ConfigPath, "Configuration directory path"),
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Version: fs.Bool(utils.VersionCgr, false, "Print application version and exit"),
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PidFile: fs.String(utils.PidCgr, utils.EmptyString, "Path to write the PID file"),
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CpuPrfDir: fs.String(utils.CpuProfDirCgr, utils.EmptyString, "Directory for CPU profiles"),
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MemPrfDir: fs.String(utils.MemProfDirCgr, utils.EmptyString, "Directory for memory profiles"),
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MemPrfInterval: fs.Duration(utils.MemProfIntervalCgr, 15*time.Second, "Interval between memory profile saves"),
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MemPrfMaxF: fs.Int(utils.MemProfMaxFilesCgr, 1, "Number of memory profiles to keep (most recent)"),
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MemPrfTS: fs.Bool(utils.MemProfTimestampCgr, false, "Add timestamp to memory profile files"),
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ScheduledShutdown: fs.String(utils.ScheduledShutdownCgr, utils.EmptyString, "Shutdown the engine after the specified duration"),
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SingleCPU: fs.Bool(utils.SingleCpuCgr, false, "Run on a single CPU core"),
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Logger: fs.String(utils.LoggerCfg, utils.EmptyString, "Logger type <*syslog|*stdout|*kafkaLog>"),
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NodeID: fs.String(utils.NodeIDCfg, utils.EmptyString, "Node ID of the engine"),
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LogLevel: fs.Int(utils.LogLevelCfg, -1, "Log level (0=emergency to 7=debug)"),
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Preload: fs.String(utils.PreloadCgr, utils.EmptyString, "Loader IDs used to load data before engine starts"),
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CheckConfig: fs.Bool(utils.CheckCfgCgr, false, "Verify the config without starting the engine"),
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SetVersions: fs.Bool(utils.SetVersionsCgr, false, "Overwrite database versions (equivalent to cgr-migrator -exec=*set_versions)"),
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}
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}
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type CGREngineFlags struct {
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*flag.FlagSet
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CfgPath *string
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Version *bool
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PidFile *string
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CpuPrfDir *string
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MemPrfDir *string
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MemPrfInterval *time.Duration
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MemPrfMaxF *int
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MemPrfTS *bool
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ScheduledShutdown *string
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SingleCPU *bool
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Logger *string
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NodeID *string
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LogLevel *int
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Preload *string
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CheckConfig *bool
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SetVersions *bool
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}
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func cgrSingnalHandler(ctx *context.Context, shutdown context.CancelFunc,
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cfg *config.CGRConfig, shdWg *sync.WaitGroup) {
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shutdownSignal := make(chan os.Signal, 1)
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reloadSignal := make(chan os.Signal, 1)
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signal.Notify(shutdownSignal, os.Interrupt,
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syscall.SIGTERM, syscall.SIGINT, syscall.SIGQUIT)
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signal.Notify(reloadSignal, syscall.SIGHUP)
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for {
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select {
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case <-ctx.Done():
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shdWg.Done()
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return
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case <-shutdownSignal:
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shutdown()
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shdWg.Done()
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return
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case <-reloadSignal:
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// do it in it's own goroutine in order to not block the signal handler with the reload functionality
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go func() {
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var reply string
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if err := cfg.V1ReloadConfig(ctx,
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new(config.ReloadArgs), &reply); err != nil {
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utils.Logger.Warning(
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fmt.Sprintf("Error reloading configuration: <%s>", err))
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}
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}()
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}
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}
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}
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func CgrWritePid(pidFile string) (err error) {
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var f *os.File
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if f, err = os.Create(pidFile); err != nil {
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err = fmt.Errorf("could not create pid file: %s", err)
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return
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}
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if _, err = f.WriteString(strconv.Itoa(os.Getpid())); err != nil {
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f.Close()
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err = fmt.Errorf("could not write pid file: %s", err)
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return
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}
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if err = f.Close(); err != nil {
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err = fmt.Errorf("could not close pid file: %s", err)
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}
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return
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}
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func cgrRunPreload(ctx *context.Context, cfg *config.CGRConfig, loaderIDs string,
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loader *LoaderService) (err error) {
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if !cfg.LoaderCfg().Enabled() {
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err = fmt.Errorf("<%s> not enabled but required by preload mechanism", utils.LoaderS)
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return
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}
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ch := loader.GetRPCChan()
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select {
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case ldrs := <-ch:
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ch <- ldrs
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case <-ctx.Done():
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return
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}
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var reply string
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for _, loaderID := range strings.Split(loaderIDs, utils.FieldsSep) {
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if err = loader.GetLoaderS().V1Run(ctx, &loaders.ArgsProcessFolder{
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APIOpts: map[string]any{
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utils.MetaForceLock: true, // force lock will unlock the file in case is locked and return error
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utils.MetaStopOnError: true,
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},
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LoaderID: loaderID,
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}, &reply); err != nil {
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err = fmt.Errorf("<%s> preload failed on loadID <%s> , err: <%s>", utils.LoaderS, loaderID, err)
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return
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}
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}
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return
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}
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// cgrStartFilterService fires up the FilterS
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func cgrStartFilterService(ctx *context.Context, iFilterSCh chan *engine.FilterS,
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cacheSCh chan *engine.CacheS, connMgr *engine.ConnManager,
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cfg *config.CGRConfig, db *DataDBService) {
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var cacheS *engine.CacheS
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select {
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case cacheS = <-cacheSCh:
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cacheSCh <- cacheS
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case <-ctx.Done():
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return
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}
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dm, err := db.WaitForDM(ctx)
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if err != nil {
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return
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}
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select {
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case <-cacheS.GetPrecacheChannel(utils.CacheFilters):
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iFilterSCh <- engine.NewFilterS(cfg, connMgr, dm)
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case <-ctx.Done():
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}
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}
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func cgrInitGuardianSv1(iGuardianSCh chan birpc.ClientConnector, cfg *config.CGRConfig,
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server *commonlisteners.CommonListenerS, anz *AnalyzerService) {
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srv, _ := engine.NewServiceWithName(guardian.Guardian, utils.GuardianS, true)
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if !cfg.DispatcherSCfg().Enabled {
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for _, s := range srv {
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server.RpcRegister(s)
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}
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}
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iGuardianSCh <- anz.GetInternalCodec(srv, utils.GuardianS)
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}
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func cgrInitServiceManagerV1(iServMngrCh chan birpc.ClientConnector,
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srvMngr *servmanager.ServiceManager, cfg *config.CGRConfig,
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server *commonlisteners.CommonListenerS, anz *AnalyzerService) {
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srv, _ := birpc.NewService(apis.NewServiceManagerV1(srvMngr), utils.EmptyString, false)
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if !cfg.DispatcherSCfg().Enabled {
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server.RpcRegister(srv)
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}
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iServMngrCh <- anz.GetInternalCodec(srv, utils.ServiceManager)
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}
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func cgrInitConfigSv1(iConfigCh chan birpc.ClientConnector,
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cfg *config.CGRConfig, server *commonlisteners.CommonListenerS, anz *AnalyzerService) {
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srv, _ := engine.NewServiceWithName(cfg, utils.ConfigS, true)
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// srv, _ := birpc.NewService(apis.NewConfigSv1(cfg), "", false)
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if !cfg.DispatcherSCfg().Enabled {
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for _, s := range srv {
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server.RpcRegister(s)
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}
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}
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iConfigCh <- anz.GetInternalCodec(srv, utils.ConfigSv1)
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}
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func cgrStartRPC(ctx *context.Context, shtdwnEngine context.CancelFunc,
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cfg *config.CGRConfig, server *commonlisteners.CommonListenerS, internalDispatcherSChan chan birpc.ClientConnector) {
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if cfg.DispatcherSCfg().Enabled { // wait only for dispatcher as cache is allways registered before this
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select {
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case dispatcherS := <-internalDispatcherSChan:
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internalDispatcherSChan <- dispatcherS
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case <-ctx.Done():
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return
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}
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}
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server.StartServer(ctx, shtdwnEngine, cfg)
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}
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func waitForFilterS(ctx *context.Context, fsCh chan *engine.FilterS) (filterS *engine.FilterS, err error) {
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select {
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case <-ctx.Done():
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err = ctx.Err()
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case filterS = <-fsCh:
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fsCh <- filterS
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}
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return
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}
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func InitConfigFromPath(ctx *context.Context, path, nodeID string, lgLevel int) (cfg *config.CGRConfig, err error) {
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// Init config
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if cfg, err = config.NewCGRConfigFromPath(ctx, path); err != nil {
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err = fmt.Errorf("could not parse config: <%s>", err)
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return
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}
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if cfg.ConfigDBCfg().Type != utils.MetaInternal {
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var d config.ConfigDB
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if d, err = engine.NewDataDBConn(cfg.ConfigDBCfg().Type,
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cfg.ConfigDBCfg().Host, cfg.ConfigDBCfg().Port,
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cfg.ConfigDBCfg().Name, cfg.ConfigDBCfg().User,
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cfg.ConfigDBCfg().Password, cfg.GeneralCfg().DBDataEncoding,
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cfg.ConfigDBCfg().Opts, nil); err != nil { // Cannot configure getter database, show stopper
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err = fmt.Errorf("could not configure configDB: <%s>", err)
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return
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}
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if err = cfg.LoadFromDB(ctx, d); err != nil {
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err = fmt.Errorf("could not parse config from DB: <%s>", err)
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return
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}
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}
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if nodeID != utils.EmptyString {
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cfg.GeneralCfg().NodeID = nodeID
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}
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if lgLevel != -1 { // Modify the log level if provided by command arguments
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cfg.LoggerCfg().Level = lgLevel
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}
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if utils.ConcurrentReqsLimit != 0 { // used as shared variable
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cfg.CoreSCfg().Caps = utils.ConcurrentReqsLimit
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}
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if len(utils.ConcurrentReqsStrategy) != 0 {
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cfg.CoreSCfg().CapsStrategy = utils.ConcurrentReqsStrategy
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}
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config.SetCgrConfig(cfg) // Share the config object
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return
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}
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