Recommendation API/Cloud VPS deploy

1. Create instance in Cloud VPS
   • If using storage, make sure to add the additional disk space
2. Create a Web Proxy in Horizon
3. Run the Cloud VPS setup script (or the portions that are relevant)
   • For some experiments, it's desirable to install the recommendation package from pip
   • https://github.com/wikimedia/research-recommendation-api/blob/master/recommendation/data/labs_setup.sh
4. Clone the repo of the desired recommendation package
5. Install it using pip
   • If doing experimental things, uwsgi will likely need to be installed manually, and it requires a C compiler (build-essentials and python3-dev)
6. Install database if necessary (postgresql-9.6 is used sometimes)
   • Change data_directory in /etc/postgresql/9.6/main/postgresql.conf to point at /srv
   • Create database

     sudo su postgres

     psql

     create database test;

     create role testing with password 'testing';

     grant connect on database test to testing;

     grant select on all tables in schema public to testing;

     alter default privileges in schema public grant select on tables to testing;

7. Copy the config files to their various locations (refer to labs_setup script if doing this manually)
8. Set the correct host name in the nginx config
9. Modify /etc/recommendation/recommendation.ini and /etc/recommendation/recommendation.wsgi to serve the appropriate service