Template:Installation/Configuration

Now open config/database.yml and config/diaspora.yml in your favorite text editor and carefully review them, they are extensively commented.

username Make sure to use the right username you created for diaspora.
password Make sure to use the right password for the user your created for diaspora.

environment.url: Set the public facing URL to your pod here, for example for https://pod.geraspora.de this would be https://pod.geraspora.de
environment.certificate_authorities: You have to set this, one of the examples should fit. If the file in the example doesn't exist you're missing a package, in most cases it's named ca-certificates.
server.rails_environment: You must set this to . The server section is read by ./script/server and most alternative startup methods to setup the correct environment.
environment.require_ssl: If for some reason you can't run your pod on HTTPS (we highly encourage you to do it!), set this to false to prevent a redirect from http:// to https://