Logstash conf file is not creating an index in ES

Elastic Stack Logstash
1

Logstash conf file is not creating an index in ES when using docker-compose. This is my logstash.conf code, can anyone help me figure out the solution?

input{
    elasticsearch {
    		hosts => "elasticsearch:9200"
    		user => "elastic"
    		password => "changeme"
    	}
    file {
        path => "<path of logFile on local desktop>/logFile.txt"
        start_position => "beginning"
    }
}

output{
    elasticsearch{
    hosts => "elasticsearch:9200"
    user => "elastic"
    password => "changeme"
    index => "sample" 
}
2

input section looks weird. it has Elasticsearch and file both as input. is that correct?