Allow turning on --verbose mode by environment variable $DEBUG_MODE

[ssiuhk]

Hi,

I found it's a bit trouble to turn on the -verbose switch with docker-compose as the start-up command is hard-coded during docker build. I've transfer the start-up commands into an entrypoint script and allow starting other commands for troubleshooting.

Hope it helps

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• Run application by an entrypoint.sh script to allow more debug options