Crust services log requests, responses, errors and other events as JSON that can be forwarded directly to logstash, filtered and displayed in Kibana.
See logstash/02-gelf-input.conf
for ELK configuration details.
Extend your docker-compose.yml
services with logging section:
services:
some-service:
# ... service settings ...
logging:
driver: gelf
options:
gelf-address: "tcp://elk:12201"