golarm

Fire alarms with system events

Usage

golarm.AddAlarm(golarm.SystemLoad(golarm.OneMinPeriod).Above(0.8).Run(func() {
        fmt.Println("System load >0.8 !!")
        smtp.SendMail(smtpHost, emailConf.Port, "System load >0.8 !!")
    }))

Options

• SystemLoad

  // checks if the system load is lower or equal to 0.5
  golarm.AddAlarm(golarm.SystemLoad(golarm.OneMinPeriod).AboveEqual(0.5).Run(func() {
       fmt.Println("System load >=0.5 !!")
   }))

• SystemUptime

  // checks if the system has been running for less than 1 minute
  golarm.AddAlarm(golarm.SystemUptime().Below(1).Run(func() {
       fmt.Println("System just started !!")
   }))

• SystemMemory / SystemSwap [Free, Used]

  // checks if used memory is higher that 90%
  golarm.AddAlarm(golarm.SystemMemory().Used().Above(90).Percent().Run(func() {
       fmt.Println("Used system memory > 90% !!")
   }))

  // checks if free memory is lower that 500MB
  golarm.AddAlarm(golarm.SystemMemory().Free().BelowEqual(500).Run(func() {
       fmt.Println("Free memory <= 500MB !!")
   }))

• SystemProc [Status, RunningTime, Used (Memory)]

  // checks if the process 72332 has changed to zombie status
  golarm.AddAlarm(golarm.SystemProc(72332).Status(golarm.Zombie).Run(func() {
       fmt.Println("Our process with PID 72332 became Zombie !!")
   }))

  // checks if the process 72332 has been running for more than 20 minutes
  golarm.AddAlarm(golarm.SystemProc(72332).RunningTime().Above(20).Run(func() {
       fmt.Println("Our process with PID 72332 exceeded 20 minutes running !!")
   }))

TODO

• Kilobytes / Megabytes / Gigabytes (currently megabytes by default)
• Minutes / Hours / Days (currently minutes by default)

License

Distributed under MIT license. See LICENSE for more information.