neutron-interconnection/doc/source/install/common_configure.rst

2. Edit the /etc/neutron_interconnection/neutron_interconnection.conf file and complete the following actions:

   • In the [database] section, configure database access:

     [database]
     ...
     connection = mysql+pymysql://neutron_interconnection:NEUTRON_INTERCONNECTION_DBPASS@controller/neutron_interconnection