(Elasticsearch and filebeat are both v7.2)
I was encountering a lot of difficulty using the convert processor to change types, so I simplified things down to using rename. The results of my tests are confusing.
Given the following config block, I'd expect 6 fields to get renamed:
- module: osquery
result:
enabled: true
input:
processors:
- rename:
fields:
- from: "input.type"
to: "input.typerenamed"
- from: "fileset.name"
to: "fileset.renamed"
- from: "host.architecture"
to: "host.architecturerenamed"
- from: "host.os.platform"
to: "host.os.platformrenamed"
- from: "osquery.result.action"
to: "osquery.result.actionrenamed"
- from: "osquery.result.columns.actual_rpm"
to: "osquery.result.columns.actual_rpmrenamed"
What I actually get is just 2 fields renamed. input.type and fileset.name both successfully change.
None of the other lines work, instead I get errors saying that the fields were not found. The fields are definitely there, and I even copy/pasted the names just in case I was like unable to spell 'columns' or something
I've tried a number of different fields, some rename, others end up with an error.message in this format:
Failed to rename fields in processor: could not fetch value for key: foo, Error: key not found
I see that there is a "dot expander processor" but it implies that any field with a dot in the name can't be manipulated by a processor, but input.type and fileset.name do...