Anyone know how to disable the use of the securitygroup API in Horizon (or if it is even possible)? We are running Havana/Ubuntu/ML2/OVS agent/GRE without iptables (via the neutron.agent.firewall.NoopFirewallDriver driver) but are receiving the Error: Unable to retrieve security groups error in Horizon when a customer tries to provision a new VM.

There is a comment in Horizon's Django local_settings.py config file that I am interpreting as the ability to switch off "security groups" via a config entry like 'enable_secgroups': False but I can't find any reference to the correct property anywhere in the code.

# The OPENSTACK_NEUTRON_NETWORK settings can be used to enable optional
# services provided by neutron. Options currenly available are load
# balancer service, security groups, quotas, VPN service.
OPENSTACK_NEUTRON_NETWORK = {
    'enable_lb': False,
    'enable_firewall': False,
    'enable_quotas': True,
    'enable_vpn': False,
    # The profile_support option is used to detect if an external router can be
    # configured via the dashboard. When using specific plugins the
    # profile_support can be turned on if needed.
    'profile_support': None,
    #'profile_support': 'cisco',
}

The enable_firewall property enables/disables FWaaS which is not what we need.