configured Kubernetes service with ipFamilyPolicy: PreferDualStack and both IPv6 and IPv4 families

Author: Abhishek Kumar

roles/baseline/defaults/main.yml

@@ -102,7 +102,8 @@ INGRESS_NGINX_IPV6_CONFIG:
         service.beta.kubernetes.io/aws-load-balancer-nlb-target-type: "ip"
         service.beta.kubernetes.io/aws-load-balancer-ip-address-type: "dualstack"
         service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
-      ipFamilies: ["IPv6"]
+      ipFamilyPolicy: "PreferDualStack"
+      ipFamilies: ["IPv6", "IPv4"]
 
 # Ingress-nginx - CVE-2021-25742 Mitigation
 INGRESS_NGINX_CVE_2021_25742_PATCH:

roles/common/tasks/main.yaml

@@ -278,6 +278,12 @@
         - tfstate.cluster_api_mode is defined
         - tfstate.cluster_api_mode.value|length > 0
         - V4_CFG_INGRESS_MODE is not defined
+    - name: tfstate - enable ipv6 # noqa: name[casing]
+      set_fact:
+        V4_CFG_ENABLE_IPV6: "{{ tfstate.enable_ipv6.value }}"
+      when:
+        - tfstate.enable_ipv6 is defined
+        - V4_CFG_ENABLE_IPV6 is not defined
     - name: tfstate - set tfstate to empty string # noqa: name[casing]
       set_fact:
         tfstate: ""