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To specify a customized log path when initiating a docker container, you can follow these steps:

1. Create a directory on your host machine where you want to store the logs. For example, create a directory called "logs" in your home directory.

2. Start the docker container with the "-v" flag to mount the logs directory as a volume inside the container. For example, the following command will start a container named "myapp" and mount the "logs" directory on the host machine as "/logs" inside the container:

docker run -d --name myapp -v ~/logs:/logs myimage

Replace "myimage" with the name of your docker image.

1. Inside the container, modify the configuration file of the application to write the logs to the mounted volume. The exact steps will depend on the application and its configuration file format.

2. Restart the container to apply the new configuration. The logs should now be written to the "logs" directory on the host machine.

Note: Some applications may provide configuration options to specify the log file path directly, without needing to mount a volume. Check the documentation of your application for more details.