In my filebeat configuration, I am trying to append a field of type date with a format specified.
setup.template: overwrite: false append_fields: - name: testfield type: date format: "dd/MMM/yyyy:HH:mm:ss Z"
However, I get the following error:
Exiting: unpacking template config fails: incorrect type configuration for field 'testfield': unexpected format 'dd/MMM/yyyy:HH:mm:ss Z' for field 'testfield', expected one of: string, url, date accessing 'setup.template.append_fields.0' (source:'filebeat.yml')
I am using Elasticsearch:8.2.0 and Filebeats:8.2.0.
According to the sourcecode, the accepted formatters only include string, url, and date, and doesn't allow for custom formatters. Why is this the specification?
In order to apply custom formatters, I will have to use component templates, but it would be ideal if it can be set in the filebeats config.