How do I run netflow setup when using elasticsearch as config store in Azure?

[wmassingham (Webster Massingham)]

I'm trying to get netflow set up for the SIEM tools in my Azure instance. I have data coming into ES through a logstash pipeline (summarized here):

input {
  udp {
    port  => 2055
    codec => netflow
    type => netflow                                                                                                                                   
  }
}
output {
    if [type] == "netflow" {
        elasticsearch {
			hosts => ["${ELASTICSEARCH_URL}"]
			user => "logstash_pipeline"
			password => "<password>"
			index => "netflow-%{+YYYY.MM.dd}"
		}
    }
}

But when I go into the SIEM page, it prompts me to view setup instructions. So I pick Netflow. I tried adding the modules section as follows to logstash.yml:

modules:
  - name: netflow
    var.input.udp.port: 2055
    var.elasticsearch.hosts: ["${ELASTICSEARCH_URL}"]
    var.elasticsearch.username: elastic
    var.elasticsearch.password: <password>

But logstash refused to start, saying "java.lang.IllegalStateException: Logstash stopped processing because of an error: (SystemExit) exit"

So I removed that and just tried running /usr/share/logstash/bin/logstash --modules netflow --setup, but logstash then says "ERROR: You cannot use --modules since Elasticsearch is configured as the config store".

So, how do I get Kibana to recognize this data for SIEM? How do I import the visualizations?