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Document configuration reloading when using docker

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Based on https://github.com/maptiler/tileserver-gl/issues/420#issuecomment-766332814
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zstadler 2021-02-02 12:35:19 +02:00 committed by GitHub
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docs/usage.rst
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@ -33,4 +33,8 @@ Reloading configuration
======
It is possible to reload the configuration file without restarting the whole process by sending a SIGHUP signal to the node process.
However, this does not currently work when running the tileserver-gl docker container (the signal is not passed to the subprocess, see https://github.com/maptiler/tileserver-gl/issues/420#issuecomment-597507663).
When running the tileserver-gl docker container, the signal must be sent from within the container:
::
docker exec tileserver-gl bash -c 'kill -HUP $(ls -l /proc/*/exe | sed -n "/\/node$/s/.*proc\/\([0-9]\+\)\/exe .*/\1/p")'