Painless Docker - 2nd Edition

Docker Swarm Logging

Docker Swarm has a built-in logging system that allows you to see logs from all the services in the cluster. However, logs are not stored and should be sent to an external logging system like ELK or Loki.

This is how to see the logs of a service:

docker service logs my-stack_wordpress

To follow the logs, use the following command:

docker service logs -f my-stack_wordpress
# or docker service logs --follow my-stack_wordpress

You can see logs since a specific time using the --since option: