// shuffleNodes copies nodes from the specified slice into a copy in random
// order. It returns a new slice.
func shuffleNodes(nodes []api.Node) []api.Node {
shuffled := make([]api.Node, len(nodes))
perm := rand.Perm(len(nodes))
for i, j := range perm {
shuffled[j] = nodes[i]
}
return shuffled
}
// ShuffleStrings copies strings from the specified slice into a copy in random
// order. It returns a new slice.
func ShuffleStrings(s []string) []string {
shuffled := make([]string, len(s))
perm := utilrand.Perm(len(s))
for i, j := range perm {
shuffled[j] = s[i]
}
return shuffled
}