Check for ports in use

[NiclasvanEyk]

MinIO uses ports 9000 and 8900 on the host system. If you use phpstorm and are currently listening for xdebug connections, it will use port 9000 by default.

This means, that the initialize script will start, but surely fail when calling docker-compose up.

A similar issue can be observed on systems, where e.g. the apache web server is included and started by default (I think Ubuntu does this) on port 80.

using nc, which is hopefully available on most systems (otherwise maybe we can use containers?), one can check the availabilitiy (minio is running):

❯ nc -z localhost 9000                                  
Connection to localhost port 9000 [tcp/cslistener] succeeded! 

❯ nc -z localhost 8001