changed to use configuration files

core/entrypoint.sh

@@ -1,10 +1,5 @@
 #!/usr/bin/env bash
 set -e
-sed -i \
-  -e's/#mysql_host = localhost/mysql_host = mysql/' \
-  -e's/#mysql_user = root/mysql_user = kopano/' \
-  -e's/#mysql_password =/mysql_password = Asdf2345/' \
-  /etc/kopano/server.cfg
 # runas user kopano
 chown kopano:kopano /var/lib/kopano/attachments
 exec "$@"