It is a demo on how to leverage on docker logs option to send logs to another server
docker-compose up -d
docker-compose restart web
docker-compose logs
## you will see the stdout from podinfo and go to fluentd stdout (due to the fluentd config), like
## fluentd_1 | 2021-03-23 03:51:58.000000000 +0000 7a3c12568bff: {"log":"Error to open config file, stat config.yaml: no such file or directory","container_id":"7a3c12568bff77f17a3909d63074401328af851e5d763a2b75b1e7e273c6ef33","container_name":"/test_web_1","source":"stdout"}