td-agent.conf

<source>
  type tail
  path /home/jacopen/minecraft/data/vanilla/logs/latest.log
  format /^\[.*\]\s\[.*\]:\s(?<log>.*)$/
  time_format %d/%b/%Y:%H:%M:%S %z
  tag minecraft.log
  pos_file /var/log/td-agent/minecraft.pos
</source>

<match minecraft.log>
  type rewrite_tag_filter
  rewriterule1 log ^\<.*\>\s.*$ minecraft.log.talk
  rewriterule2 log ^.*\sjoined\sthe\sgame$ minecraft.log.join
  rewriterule3 log ^.*\sleft\sthe\sgame$ minecraft.log.left
</match>

<match minecraft.log.left>
  type ikachan
  host localhost
  port 4979
  channel udcp
  out_keys log
  message Minecraft(Vanilla)からログアウトしました。 %s
</match>
<match minecraft.log.join>
  type ikachan
  host localhost
  port 4979
  channel udcp
  out_keys log
  message Minecraft(Vanilla) にログインしました。 %s
</match>
<match minecraft.log.talk>
  type ikachan
  host localhost
  port 4979
  channel udcp
  out_keys log
  message Minecraft(Vanilla) %s
</match>