# File lib/openshift-origin-controller/app/models/district.rb, line 103
  def remove_node(server_identity)
    if server_identities.has_key?(server_identity)
      unless server_identities[server_identity]["active"]
        container = OpenShift::ApplicationContainerProxy.instance(server_identity)
        capacity = container.get_capacity
        if capacity == 0
          if OpenShift::DataStore.instance.remove_district_node(@uuid, server_identity)
            container.set_district('NONE', false)
            server_identities.delete(server_identity)
          else
            raise OpenShift::OOException.new("Node with server identity: #{server_identity} could not be removed from district: #{@uuid}")
          end
        else
          raise OpenShift::OOException.new("Node with server identity: #{server_identity} could not be removed from district: #{@uuid} because it still has apps on it")
        end
      else
        raise OpenShift::OOException.new("Node with server identity: #{server_identity} from district: #{@uuid} must be deactivated before it can be removed")
      end
    else
      raise OpenShift::OOException.new("Node with server identity: #{server_identity} doesn't belong to district: #{@uuid}")
    end
  end