* After it installs the core configuration files (database.yml, application.yml, and production.rb) to /etc/arvados/server, it calls setup_extra_conffiles. By default this is a noop function (in step2.sh).
* Before it restarts nginx, it calls setup_before_nginx_restart. By default this is a noop function (in step2.sh). API server defines this to set up the internal git repository, if necessary.
* After it installs the core configuration files (database.yml, application.yml, and production.rb) to /etc/arvados/server, it calls setup_extra_conffiles. By default this is a noop function (in step2.sh).
* Before it restarts nginx, it calls setup_before_nginx_restart. By default this is a noop function (in step2.sh). API server defines this to set up the internal git repository, if necessary.