Some component defaults are only valid for OpenShift 4

[simu]

The component currently provides a number of default Helm values for installing Cilium, cf.

component-cilium/class/defaults.yml

Lines 13 to 39 in e38b95c

	cilium_helm_values:
	cni:
	binPath: /var/lib/cni/bin
	confPath: /var/run/multus/cni/net.d
	endpointRoutes:
	enabled: true
	hubble:
	tls:
	enabled: false
	ipam:
	mode: cluster-pool
	operator:
	clusterPoolIPv4MaskSize: "23"
	clusterPoolIPv4PodCIDR: 10.128.0.0/14
	kubeProxyReplacement: probe
	nativeRoutingCIDR: 10.128.0.0/14
	prometheus:
	serviceMonitor:
	enabled: false
	operator:
	resources:
	requests:
	cpu: 100m
	memory: 250Mi
	limits:
	cpu: 100m
	memory: 250Mi

Some of these values are only valid for OpenShift 4, for example cni.confPath: /var/run/multus/cni/net.d. Other values are inspired by the OpenShift 4 defaults, such as the default Pod CIDR. However, the Pod CIDR values don't seem to match the OCP4.9 defaults completely (OCP4.9 uses 10.128.0.0/10 by default, not the component's 10.128.0.0/14). In contrast, the Cilium Helm chart defaults to 10.0.0.0/8 for the Pod CIDR.

Actual Behavior

I would expect that the component only provides generally applicable default configs. Currently the component must be reconfigured to be usable on non-OCP4 (or technically, non-multus setups).

Expected Behavior

I'd expect that the component defaults don't contain OpenShift 4-specific configuration and that the component documents a minimal configuration required for OpenShift 4.