Logstash does not process files sent by filebeat - docker

Question

I have setup an elk stack infrastructure with docker.
I can't see files being processed by logstash.
Filebeat is configured to send .csv files to logstash from logstash, to elasticsearch. I see the logstash filebeat listner staring. Logstash to elasticsearch pipeline works however there is no document/index written.
Please advise
filebeat.yml
filebeat.prospectors:
- input_type: log
paths:
- logs/sms/*.csv
document_type: sms
paths:
- logs/voip/*.csv
document_type: voip
output.logstash:
enabled: true
hosts: ["logstash:5044"]
logging.to_files: true
logging.files:
logstash.conf
input {
beats {
port => "5044"
}
}
filter {
if [document_type] == "sms" {
csv {
columns => ['Date', 'Time', 'PLAN', 'CALL_TYPE', 'MSIDN', 'IMSI', 'IMEI']
separator => " "
skip_empty_columns => true
quote_char => "'"
}
}
if [document_type] == "voip" {
csv {
columns => ['Date', 'Time', 'PostDialDelay', 'Disconnect-Cause', 'Sip-Status','Session-Disposition', 'Calling-RTP-Packets-Lost','Called-RTP-Packets-Lost', 'Calling-RTP-Avg-Jitter','Called-RTP-Avg-Jitter', 'Calling-R-Factor', 'Called-R-Factor', 'Calling-MOS', 'Called-MOS', 'Ingress-SBC', 'Egress-SBC', 'Originating-Trunk-Group', 'Terminating-Trunk-Group']
separator => " "
skip_empty_columns => true
quote_char => "'"
}
}
}
output {
if [document_type] == "sms"{
elasticsearch {
hosts => ["elasticsearch:9200"]
index => "smscdr_index"
}
stdout {
codec => rubydebug
}
}
if [document_type] == "voip" {
elasticsearch {
hosts => ["elasticsearch:9200"]
index => "voipcdr_index"
}
stdout {
codec => rubydebug
}
}
}
Logstash partial logs
[2019-12-05T12:48:38,227][INFO ][logstash.inputs.beats ] Beats inputs: Starting input listener {:address=>"0.0.0.0:5044"}
[2019-12-05T12:48:38,411][INFO ][logstash.pipeline ] Pipeline started successfully {:pipeline_id=>"main", :thread=>"#<Thread:0x4ffc5251 run>"}
[2019-12-05T12:48:38,949][INFO ][logstash.agent ] Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[2019-12-05T12:48:39,077][INFO ][org.logstash.beats.Server] Starting server on port: 5044
==========================================================================================
[2019-12-05T12:48:43,518][INFO ][logstash.outputs.elasticsearch] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["http://elasticsearch:9200"]}
[2019-12-05T12:48:43,745][INFO ][logstash.pipeline ] Pipeline started successfully {:pipeline_id=>".monitoring-logstash", :thread=>"#<Thread:0x46e8e60c run>"}
[2019-12-05T12:48:43,780][INFO ][logstash.agent ] Pipelines running {:count=>2, :running_pipelines=>[:".monitoring-logstash", :main], :non_running_pipelines=>[]}
[2019-12-05T12:48:45,770][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600}
filebeat log sample
2019-12-05T12:55:33.119Z INFO log/harvester.go:255 Harvester started for file: /usr/share/filebeat/logs/voip/voip_cdr_1595.csv
2019-12-05T12:55:33.126Z INFO log/harvester.go:255 Harvester started for file: /usr/share/filebeat/logs/voip/voip_cdr_2004.csv
2019-12-05T12:55:33.130Z INFO log/harvester.go:255 Harvester started for file: /usr/share/filebeat/logs/voip/voip_cdr_2810.csv
======================================================================================================
2019-12-05T13:00:44.002Z INFO log/harvester.go:280 File is inactive: /usr/share/filebeat/logs/voip/voip_cdr_563.csv. Closing because close_inactive of 5m0s reached.
2019-12-05T13:00:44.003Z INFO log/harvester.go:280 File is inactive: /usr/share/filebeat/logs/voip/voip_cdr_2729.csv. Closing because close_inactive of 5m0s reached.
2019-12-05T13:00:44.004Z INFO log/harvester.go:280 File is inactive: /usr/share/filebeat/logs/voip/voip_cdr_2308.csv. Closing because close_inactive of 5m0s reached.
2019-12-05T13:00:49.218Z INFO log/harvester.go:280 File is inactive: /usr/share/filebeat/logs/voip/voip_cdr_981.csv. Closing because close_inactive of 5m0s reached.
docker-compose ps
docker-compose -f docker-compose_stash.yml ps
The system cannot find the path specified.
Name Command State Ports
---------------------------------------------------------------------------------------------------------------------
elasticsearch_cdr /usr/local/bin/docker-entr ... Up 0.0.0.0:9200->9200/tcp, 9300/tcp
filebeat_cdr /usr/local/bin/docker-entr ... Up
kibana_cdr /usr/local/bin/kibana-docker Up 0.0.0.0:5601->5601/tcp
logstash_cdr /usr/local/bin/docker-entr ... Up 0.0.0.0:5000->5000/tcp, 0.0.0.0:5044->5044/tcp, 9600/tcp

Answer 1

In logstash you have a conditional check in the field document_type, but this field is not generated by filebeat, you need to correct your filebeat config.
Try this config for your inputs.
filebeat.prospectors:
- input_type: log
paths:
- logs/sms/*.csv
fields:
document_type: sms
paths:
- logs/voip/*.csv
fields:
document_type: voip
This will create a field named fields with a nested field named document_type, like the example below.
{ "fields" : { "document_type" : "voip" } }
And change your logstash conditionals to check agains the field fields.document_type, like the example below.
if [fields][document_type] == "sms" {
your filters
}
If you want, you can use the option fields_under_root: true in filebeat to create the document_type in the root of your document, so you will not need to change your logstash conditionals.
filebeat.prospectors:
- input_type: log
paths:
- logs/sms/*.csv
fields:
document_type: sms
fields_under_root: true