107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
package main
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import (
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"context"
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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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"github.com/alexvanin/nezabx/db"
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"github.com/alexvanin/nezabx/notifications/email"
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"github.com/alexvanin/nezabx/runners"
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"github.com/robfig/cron/v3"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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)
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func main() {
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configFile := flag.String("c", "", "config file")
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debugFlag := flag.Bool("debug", false, "debug mode")
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versionFlag := flag.Bool("version", false, "show version")
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flag.Parse()
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if *versionFlag {
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fmt.Printf("Nezabx %s\n", Version)
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os.Exit(0)
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}
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ctx, _ := signal.NotifyContext(context.Background(), os.Interrupt)
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log := Logger(*debugFlag)
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cfg, err := ReadConfig(*configFile)
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if err != nil {
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log.Error("invalid configuration", zap.Error(err))
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os.Exit(1)
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}
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state, err := db.NewBolt(cfg.State.Bolt)
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if err != nil {
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log.Error("invalid configuration", zap.Error(err))
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os.Exit(1)
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}
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var mailNotificator *email.Notificator
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if cfg.Notifications.Email != nil {
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mailNotificator := email.NewNotificator(
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cfg.Notifications.Email.SMTP,
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cfg.Notifications.Email.Login,
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cfg.Notifications.Email.Password,
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)
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for _, group := range cfg.Notifications.Email.Groups {
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mailNotificator.AddGroup(group.Name, group.Addresses)
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}
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}
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for _, command := range cfg.Commands {
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cmd, err := runners.NewCommand(command.Exec)
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if err != nil {
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log.Warn("invalid command configuration", zap.String("command", command.Name), zap.Error(err))
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os.Exit(1)
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}
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var cronSchedule cron.Schedule
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if command.Interval == 0 {
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cronSchedule, err = cron.ParseStandard(command.Cron)
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if err != nil {
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log.Warn("invalid cron configuration", zap.String("command", command.Name), zap.Error(err))
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os.Exit(1)
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}
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}
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commandRunner := runners.CommandRunner{
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Log: log,
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DB: state,
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MailNotificator: mailNotificator,
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Command: cmd,
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Name: command.Name,
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Threshold: command.Threshold,
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ThresholdSleep: command.ThresholdSleep,
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Timeout: command.Timeout,
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Interval: command.Interval,
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CronSchedule: cronSchedule,
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Notifications: command.Notifications,
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}
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commandRunner.Run(ctx)
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}
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log.Info("application started")
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<-ctx.Done()
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log.Info("application received termination signal")
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}
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func Logger(debug bool) *zap.Logger {
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logCfg := zap.NewProductionConfig()
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logCfg.Level.SetLevel(zap.InfoLevel)
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logCfg.DisableCaller = true
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logCfg.Encoding = "console"
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logCfg.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
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logCfg.DisableStacktrace = true
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if debug {
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logCfg.Level.SetLevel(zap.DebugLevel)
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logCfg.DisableCaller = false
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}
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logger, _ := logCfg.Build()
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return logger
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}
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