In addition to validating our supervisor and nginx configurations, this ensures we can serve static files locally as we would in production.

This service has been called discovery for a while now.

ECOM-3180

Use the committed script for Docker installation.

- Corrected WSGI package path
- Using a single database user

Updated go-agent dockerfile to override start script so container process captures the correct GO_SERVER_PORT

Re-run the django-ida template role to pull in some additional changes made to it into the credentials role

ECOM-3181