Separating GeoNode Capabilities

I was able to use separate hosts for GeoNode, Geoserver, and Postgresql/Postgis instead of having them all on a single machine.

On the remote Postgresql server:

• Create the geonode user and both the geonode and geonode_data databases.  I used the instructions available here
• Edit /etc/postgres/9.5/main/pg_hba.conf  to allow geonode user and database access
• Edit /etc/postgres/9.5/main/postgresql.conf to allow listeners outside of localhost

On the GeoNode host:

• Test access to remote server with:  psql -h <remote host ip> -U geonode
• Edit /etc/geonode/local_settings.conf  and change the database host and password
• Add the remote database server to the ALLOWED_HOSTS
• Edit /etc/geonode/local_settings.conf and change the GEOSERVER_URL
• Make sure the remote geoserver has an admin user/password that matches local_settings.conf
• Edit /etc/apache2/sites-available/geonode.conf and change the ProxyPass and ReverseProxyPass directives.

For future builds:

Before running the install.sh script, edit the geonode/package/support/geonode.local_settings and change the remote database settings and remote geoserver settings