Fluentd is not filtering as intended before writing to Elasticsearch

Question

Using:

• Elasticsearch 7.5.1.
• Fluentd 1.11.2
• Fluent-plugin-elasticsearch 4.1.3
• Springboot 2.3.3

I have a Springboot artifact

Answer 1

Thanks to @Azeem, and according to grep and regexp features documentation, I got it :).

I just added this to my Fluentd config file:

<filter onpay.**>
  @type grep
  <regexp>
    key message
    pattern /^.*inout.*$/
  </regexp>
</filter>

Any line that does not contain the word "inout" is now excluded.