[Unit]
Description=Logstash Agent

[Service]
User=logstash
Group=logstash
Environment=LOGSTASH_CONF=/etc/logstash/conf.d
WorkingDirectory=/opt/logstash
ExecStart=/opt/logstash/bin/logstash agent -f $LOGSTASH_CONF
PrivateTmp=true

[Install]
WantedBy=multi-user.target