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cmd_cpu.go
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/
cmd_cpu.go
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package main
import (
"fmt"
"github.com/last9/slo-computer/slo"
"github.com/pkg/errors"
"gopkg.in/alecthomas/kingpin.v2"
)
type burstCPUCmd struct {
instanceType string
cpuUtilization float64
}
func (c *burstCPUCmd) suggest(ctx *kingpin.ParseContext) error {
cc := slo.InstanceCapacity(c.instanceType)
if cc == nil {
return errors.Errorf("unrecognized instance: %v", c.instanceType)
}
if c.cpuUtilization > 100 || c.cpuUtilization < 0 {
return errors.Errorf("avg cpu should be: 0 <= %v <= 100", c.cpuUtilization)
}
//TODO: Validate Input & compute permisisble burst
b, err := slo.NewBurstCPU(cc, c.cpuUtilization)
if err != nil {
return err
}
a := slo.BurstCalculator(b)
for _, aw := range a {
if aw == nil {
continue
}
fmt.Println(aw.String())
}
return nil
}
func burstCPUCommand(app *kingpin.Application) {
c := &burstCPUCmd{}
sg := app.Command(
"cpu-suggest", "suggest alerts based on CPU utilization and Instance type",
).Action(c.suggest)
sg.Flag("instance", "Instance type").Required().EnumVar(
&c.instanceType, slo.Instances()...,
)
sg.Flag(
"utilization",
"Average utilization over last 24 hours",
).Required().Float64Var(&c.cpuUtilization)
}