kill executables of a name over memory usage percentage

main.go

package main

import (
	"fmt"
	"log"
	"log/syslog"
	"strings"

	"github.com/shirou/gopsutil/process"
)

// MemoryPercentKillThreshold set max percentage for process
const MemoryPercentKillThreshold float32 = 18.0

// ProcessType set process to match to kill, if it exceeds memory usage
const ProcessType string = "uwsgi"

func main() {
	sysLog, err := syslog.New(syslog.LOG_WARNING, "killer")
	if err != nil {
		log.Fatal(err)
	}
	ps, _ := process.Processes()
	for _, p := range ps {
		cmd, err := p.Cmdline()
		if err != nil {
		}
		if strings.Contains(cmd, ProcessType) {
			mem, _ := p.MemoryPercent()
			if mem > MemoryPercentKillThreshold {
				err := p.Terminate()
				if err != nil {
					sysLog.Crit(fmt.Sprint("process:", p.Pid, " counldn't be killed: ", err))
				} else {
					sysLog.Alert(fmt.Sprint("process:", p.Pid, " got killed due to high memory usage: ", mem))
				}
			}
		}
	}
}