I am using filebeat to import log file which has some meta data in the first few lines into ELK.
The log file format looks like this:
Hostname: xxx Created: <time> Format: XXX ----Actual logs---
I want to extract the hostname information from the first line and add it as a custom field to all
actual log lines.
The reason is that I have many files from different hosts (but not from their original server, instead they are all placed in the same jumphost).
Is this possible with filebeat/ELK? If so how can this be done?