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I am running a new container using the following command:

docker run -d --log-driver=gelf --log-opt gelf-address=tcp://<my_log_server> nginx

Looking at the documentation, this should send the logs to my_log_server, and if I run the docker logs <my_container> command I shoult NOT see any logs. But actually I do, and I don't want this.

Do you have any idea why this is happening?

I'm testing it with Docker version 20.10.8, build 3967b7d

Federico Bellini
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1 Answers1

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According to the docker documentation - https://docs.docker.com/config/containers/logging/configure/

When using Docker Engine 19.03 or older, the docker logs command is only functional for the local, json-file and journald logging drivers. Docker 20.10 and up introduces “dual logging”, which uses a local buffer that allows you to use the docker logs command for any logging driver. Refer to reading logs when using remote logging drivers for details.

Hope it clarifies.

Daniel Czarnozynski
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