OneNode: Number of Shards

[cdra]

We've deployed a one node cluster. We'll use logstash only to capture syslog events from 100 devices and windows events from 150 computers aprox.
I think 1 shard is enough....not ?? how could i change it ?? My default installation has 5 shards

[cdra]

Is this good ???

PUT _template/logstash
{
"index_patterns": [
"logstash-*"],
"settings": { "number_of_shards": 1}
}