example/logevents.conf
<source>
@type sample
@label @samplelog
tag "data"
sample {"message":"yay"}
</source>
<label @samplelog>
<match **>
@type stdout
</match>
</label>
<label @FLUENT_LOG>
<match fluent.debug fluent.info fluent.warn fluent.error fluent.fatal>
@type stdout
<inject>
hostname_key "host"
</inject>
</match>
# <match fluent.{info,warn,error,fatal}>
# @type stdout
# <inject>
# hostname_key "host"
# </inject>
# </match>
</label>