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check-uptime.go
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check-uptime.go
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package checkuptime
import (
"fmt"
"os"
"time"
"github.com/jessevdk/go-flags"
"github.com/mackerelio/checkers"
"github.com/mackerelio/go-osstat/uptime"
)
type uptimeOpts struct {
WarnUnder *float64 `long:"warn-under" value-name:"N" description:"(DEPRECATED) Trigger a warning if under the seconds"`
WarningUnder *float64 `short:"w" long:"warning-under" value-name:"N" description:"Trigger a warning if under the seconds"`
CritUnder *float64 `short:"c" long:"critical-under" value-name:"N" description:"Trigger a critial if under the seconds"`
WarnOver *float64 `long:"warn-over" value-name:"N" description:"(DEPRECATED) Trigger a warning if over the seconds"`
WarningOver *float64 `short:"W" long:"warning-over" value-name:"N" description:"Trigger a warning if over the seconds"`
CritOver *float64 `short:"C" long:"critical-over" value-name:"N" description:"Trigger a critical if over the seconds"`
}
// Do the plugin
func Do() {
opts, err := parseArgs(os.Args[1:])
if err != nil {
os.Exit(1)
}
ckr := opts.run()
ckr.Name = "Uptime"
ckr.Exit()
}
func parseArgs(args []string) (*uptimeOpts, error) {
opts := &uptimeOpts{}
_, err := flags.ParseArgs(opts, args)
return opts, err
}
func (opts *uptimeOpts) run() *checkers.Checker {
utDur, err := uptime.Get()
if err != nil {
return checkers.Unknown(fmt.Sprintf("Failed to fetch uptime metrics: %s", err))
}
ut := utDur.Seconds()
// for backward compatibility
if opts.WarnUnder != nil && opts.WarningUnder == nil {
opts.WarningUnder = opts.WarnUnder
}
if opts.WarnOver != nil && opts.WarningOver == nil {
opts.WarningOver = opts.WarnOver
}
checkSt := checkers.OK
if opts.WarningUnder != nil && *opts.WarningUnder > ut {
checkSt = checkers.WARNING
}
if opts.WarningOver != nil && *opts.WarningOver < ut {
checkSt = checkers.WARNING
}
if opts.CritUnder != nil && *opts.CritUnder > ut {
checkSt = checkers.CRITICAL
}
if opts.CritOver != nil && *opts.CritOver < ut {
checkSt = checkers.CRITICAL
}
dur := time.Duration(ut * float64(time.Second))
hours := int64(dur.Hours())
days := hours / 24
hours = hours % 24
mins := int64(dur.Minutes()) % 60
msg := fmt.Sprintf("%d day(s) %d hour(s) %d minute(s) (%d second(s))\n", days, hours, mins, int64(dur.Seconds()))
return checkers.NewChecker(checkSt, msg)
}