set-docker-log-size.md

Set docker log size

https://docs.docker.com/config/containers/logging/local/

Usage

To use the local driver as the default logging driver, set the log-driver and log-opt keys to appropriate values in the daemon.json file, which is located in /etc/docker/ on Linux hosts or C:\ProgramData\docker\config\daemon.json on Windows Server. For more about configuring Docker using daemon.json, see daemon.json.

The following example sets the log driver to local and sets the max-size option.

{
  "log-driver": "local",
  "log-opts": {
    "max-size": "10m"
  }
}

Restart Docker for the changes to take effect for newly created containers. Existing containers don't use the new logging configuration automatically.

You can set the logging driver for a specific container by using the --log-driver flag to docker container create or docker run:

$ docker run\
      --log-driver local --log-opt max-size=10m\
      alpine echo hello world

Note that local is a bash reserved keyword, so you may need to quote it in scripts.