Mention OS specific SSL configuration

[netbrothers-tr]

For me, the instructions given in the readme file didn't work right away. I chose to install the project on an Ubuntu system and to connect to the database with username and password. Pretty standard choices they seemed to me. The problem was, that the preconfigured path value for the option PDO::MYSQL_ATTR_SSL_CA in the file config/packages/doctrine.yaml didn't match with my OS's certificates file. It had to be changed as follows.

# config/packages/doctrine.yaml
-          !php/const:PDO::MYSQL_ATTR_SSL_CA: /etc/ssl/cert.pem  # if connecting with client certs, remove this
+          !php/const:PDO::MYSQL_ATTR_SSL_CA: /etc/ssl/certs/ca-certificates.crt # works on Ubuntu

After the change, it worked flawlessly.

To solve this universally, I'd suggest to either

• simply mention in the readme file that the configuration in config/packages/doctrine.yaml might need platform specific adjustments

or to

• control this with an environment variable providing some hints in the .env file for different OS's.

I'd be willing to write a patch, once I have some feedback.

[nickvanw]

Thanks for opening this!

simply mention in the readme file that the configuration in config/packages/doctrine.yaml might need platform specific adjustments

I think that's the right way to go about this, potentially with an addition of some common paths for a few different platforms - Ubuntu/Debian, CentOS/RHEL, etc.