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In some use cases, it may be useful to change the hardcoded
tail.Config
settings. For instance, when runningpostfix_exporter
as a sidecar container the log file may not yet be created by the mainpostfix
container upon startingpostfix_exporter
and as a result we needed to haveMustExist
set tofalse
. It is also useful to keep logs from thetail
module for debugging purposes.This PR introduces the ability to configure some of the
tail.Config
settings by exposing them as command line flag tofileLogSourceFactory
.