private NodeResources clusterControllerResources(ClusterSpec clusterSpec, Architecture architecture) {
        // 1.32 fits floor(8/1.32) = 6 cluster controllers on each 8Gb host, and each will have
        // 1.32-(0.7+0.6)*(1.32/8) = 1.1 Gb real memory given current taxes.
        var memory = architecture == x86_64
                ? tuning.clusterControllerMem(1.32)
                : tuning.clusterControllerMem(1.50);
        return versioned(clusterSpec, Map.of(new Version(0), new NodeResources(0.25, memory, 10, 0.3)));
    }
Defines the policies for assigning cluster capacity in various environments.

@author bratseth
config-provisioning/src/main/java/com/yahoo/config/provision/CapacityPolicies.java