Execute logstash script as batch

[amjad.hussain]

I am using Logstash 5.4.1.
I need to execute one of my logstash script only once.
I don't want logstash thread to run in background. I want to use logstash script like a batch.
Once thread reach end of the file in input file. It should terminate automatically.
Can someone help me with that?

Note: my input is some data file and output is elasticsearch.

I tried with this syntax. But it didn't work.
/logstash.bat -f myconf.conf < testLog.log

[warkolm (Mark Walkom)]

type testLog.log | logstash.bat -f myconf.conf will work.

[amjad.hussain]

It didn't work. Logstash script is not terminated automatically.

This is my script.

input {
file {
path => "C:/PADS_ELK/Logstash/logstash-5.4.1/data/input.txt"
start_position => “beginning”
}
}
filter{
csv{
columns => [“col1”,“col2”,“col3”]
separator => “,”
}
ruby {
add_field => {
“col3” => “%{[@timestamp]}”
“updated_by” => “batch”
}
code => "if event.get('col1').to_i < 1000
event.set('col1','1000')
end
if event.get('col2').to_i < 10
event.set('col2','10')
end"

remove_field => ["message", "path","@version","@timestamp","type","host"]
}
}

output {

stdout { codec => rubydebug }
elasticsearch{
hosts => [“localhost:9200”]
index => "my_index"
action => "update"
document_type => "my_type"
document_id => "%{col1}%{col2}%{col3}"
doc_as_upsert => “true”
}
}

[magnusbaeck (Magnus Bäck)]

If you want to redirect the file to Logstash you need to use a stdin input, not a file input.

[amjad.hussain]

I need to read one file which has data. Then post it to Elasticsearch.
Once Logstash reach end of the file, logstash thread should terminate.
It should not keep running.

[leandrojmp (Leandro Pereira)]

Use the stdin input instead of the file input.

Your input should be:

input { 
    stdin { } 
}

Then you will need to use the command that @warkolm posted before.

type testLog.log | logstash.bat -f myconf.conf 

Also, read this topic, it seems to be what you want, maybe it will help: stop logstash after processing the file.