feat: re-introduce flux vars for cluster network settings

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/kubernetes/flux/vars/cluster-settings.yaml.j2

@@ -1,3 +1,4 @@
+#jinja2: trim_blocks: True, lstrip_blocks: True
 ---
 apiVersion: v1
 kind: ConfigMap
@@ -6,3 +7,12 @@ metadata:
   namespace: flux-system
 data:
   TIMEZONE: "{{ bootstrap_timezone }}"
+  COREDNS_ADDR: "{{ bootstrap_service_cidr.split(',')[0] | ansible.utils.nthhost(10) }}"
+  KUBE_VIP_ADDR: "{{ bootstrap_kube_vip_addr }}"
+  CLUSTER_CIDR: "{{ bootstrap_cluster_cidr.split(',')[0] }}"
+  SERVICE_CIDR: "{{ bootstrap_service_cidr.split(',')[0] }}"
+  NODE_CIDR: "{{ bootstrap_node_cidr }}"
+  {% if bootstrap_ipv6_enabled | default(false) %}
+  CLUSTER_CIDR_V6: "{{ bootstrap_cluster_cidr.split(',')[1] }}"
+  SERVICE_CIDR_V6: "{{ bootstrap_service_cidr.split(',')[1] }}"
+  {% endif %}