How to pass file_key from source to loki sink?

[shikiroot]

a source like this:

server_log_all_file:
  type: file
  file_key: path
  include:
    - /var/log/server/*/*/*.log
  ignore_older_secs: 600
  glob_minimum_cooldown_ms: 10000

a sink like this:

server_log_all_to_loki:
  inputs:
    - server_log_all_file
  type: loki
  encoding:
    codec: text
  endpoint: "http://loki_addr:3100"
  labels:
    logfile: "?"

How to set the logfile label?

[jszwedko]

Hi @shikiroot ! The labels field for the loki sink supports Vector's template syntax. So you can use logfile: "{{ .path }}".

[shikiroot]

Thank you, that worked!