Copy/Rename multiple field in the same field + adding multiples field to one field

Hello every body,
I have two question about the mutate filter:
The first one is about adding a0,a1 and a2 fiels that contain the process args to a same field [process][args] (process.args=a0,a1,a2) how i can do it ?
The second one is about renaming multiples field example (gid, sid, uid) with the same name [user][id].

THANKS in advance for the help

Best regard,

It is really not clear what you are asking. Can you show, using JSON, for example, the before and after of what you want in the two cases?

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Hello Badger,
Thanks for you reply, I apologize because the question was not clear to you.
For the first question my goal was to have a field (process.args) that concatinate the value of a three fields a0, a2 and a3
The issue was resolved by adding the filter bellow
I puted:

filter {
mutate {
add_field => "{" [process] [args] "=>"% {a0}% {a1}% {a2} "}"
For the second one it was about having two fields sid, uid that i wanted to point to the same field (> mutate{
copy => {"sid" => "[user][id]"}
copy => {"suid" => "[user][id]"}
The error was bypassed by converting the sid and suid field to the exported field of auditbeat [auditd][data][gid] and [auditd][data][suid] but i am not sure if those two field are conforms of the ECS
mutate {

copy => {"sid" => "[auditd][data][gid]"}
copy => {"suid" => "[auditd][data][suid]"}

Best regards

The ECS fields for auditd are documented here. That document uses field.subfield notation, not logstash-style [field][subfield]

1 Like

Thanks Badger that was helpful

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