diffrence between Elasticsearch logstash kibana stack and elasticserach fluentd kibana stack code example

Example 1: diffrence between Elasticsearch logstash kibana stack and elasticserach fluentd kibana stack

<source>
  @type tail
  tag system.logs
  # ...
<source>

Example 2: diffrence between Elasticsearch logstash kibana stack and elasticserach fluentd kibana stack

<source>
  @type forward
</source>

<filter app.**>
  @type record_transformer
  <record>
    hostname "#{Socket.gethostname}"
  </record>
</filter>

<match app.**>
  @type file
  # ...
</match>

Example 3: diffrence between Elasticsearch logstash kibana stack and elasticserach fluentd kibana stack

output {
if [loglevel] == "ERROR" and [deployment] == "production" {
pagerduty {
...
}
}
}