Index settings in logstash pipeline

[Automation_Scripts]

Hi guys,

I have a logstash pipeline and i want to be able to set the number of replicas to 0 directly from my logstash.conf file. How can I do this? I have seen some docs with template, but is not working. The one from bellow is not changing the index. I've deleted it and retry but without luck.

    input {
      kafka {
        bootstrap_servers => "kafkaserver:9092"
        topics => ["sit.catalogue.item","uat.catalogue.item"]
        auto_offset_reset => "earliest"
        decorate_events => true
      }
    }
    output {
      elasticsearch {
        hosts => ["elasticsearch:9200"]
        index => "%{[indexPrefix]}-logs-%{+YYYY.MM.dd}"
        template => "index.json"
        template_name => "*-logs-*"
        template_overwrite => "false"
      }
    }

In my index.json I have

    {
        "template": "*-log-*",
        "settings": {
            "number_of_shards": 1,
            "number_of_replicas" : 0
        }
    }

The files are in the same folder:

Thank you!