Reindex versioned Elasticsearch index

gistfile1.cs

var reindex =
	elasticClient.Reindex<Customer>(r =>
    	r.FromIndex("customers-v1")
        	.ToIndex("customers-v2")
        	.Query(q => q.MatchAll())
        	.Scroll("10s")
        	.CreateIndex(i =>
            	i.AddMapping<Customer>(m =>
                	m.Properties(p =>
                    	p.String(n => n.Name(name => name.Zipcode).Index(FieldIndexOption.not_analyzed))))));
var o = new ReindexObserver<Customer>(onError: e => { });
reindex.Subscribe(o);