moby/pkg/libcontainer/utils/utils.go

package utils

import (
	"crypto/rand"
	"encoding/hex"
	"io"
)

func GenerateRandomName(prefix string, size int) (string, error) {
	id := make([]byte, 32)
	if _, err := io.ReadFull(rand.Reader, id); err != nil {
		return "", err
	}
	return prefix + hex.EncodeToString(id)[:size], nil
}