/
fill.go
83 lines (68 loc) · 1.47 KB
/
fill.go
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package commands
import (
"flag"
"fmt"
"log"
"math/rand"
"strings"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/go-uuid"
"github.com/mitchellh/cli"
)
func FillCommandFactory() (cli.Command, error) {
return &Fill{}, nil
}
type Fill struct {
}
func (c *Fill) Help() string {
helpText := `
Usage consul-live fill -keys=<n> -size=<bytes>
`
return strings.TrimSpace(helpText)
}
func (c *Fill) Synopsis() string {
return "Fills Consul's KV store"
}
func (c *Fill) Run(args []string) int {
var keys int
var size int
cmdFlags := flag.NewFlagSet("fill", flag.ContinueOnError)
cmdFlags.Usage = func() { log.Println(c.Help()) }
cmdFlags.IntVar(&keys, "keys", 1024, "")
cmdFlags.IntVar(&size, "size", 128, "")
if err := cmdFlags.Parse(args); err != nil {
return 1
}
if size < 1 {
log.Println("Size must be at least one byte")
return 1
}
client, err := api.NewClient(api.DefaultConfig())
if err != nil {
log.Println(err)
return 1
}
if err := c.run(client, keys, size); err != nil {
log.Println(err)
return 1
}
return 0
}
func (c *Fill) run(client *api.Client, keys int, size int) error {
kv := client.KV()
root, err := uuid.GenerateUUID()
if err != nil {
return err
}
for i := 0; i < keys; i++ {
buf := make([]byte, size)
if _, err := rand.Read(buf); err != nil {
return err
}
inner := fmt.Sprintf("%s/%d", root, i+1)
if _, err := kv.Put(&api.KVPair{Key: inner, Value: buf}, nil); err != nil {
return err
}
}
return nil
}