[EKS] Add required permissions for AWS LB controller (Stratio#536)

* Redefine the Nginx override variable

* required translation text

---------

Co-authored-by: dandres-stratio <[email protected]>

pkg/cluster/internal/create/actions/createworker/files/aws/public-ingress-nginx.yaml

@@ -1,3 +1,4 @@
 ---
-ingress_external_lb_annotations:
-    service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
+ingress_external_lb_annotations_extra:
+    service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
+    service.beta.kubernetes.io/aws-load-balancer-attributes: "load_balancing.cross_zone.enabled=true"

stratio-docs/en/modules/ROOT/pages/installation.adoc

@@ -1,3 +1,4 @@
+[to be translated]
 = Installation
 
 == Prerequisites
@@ -925,4 +926,4 @@ Due to a bug in the various _controllers_ (fixed in master branches but not yet
 
 Eventually, this could generate request problems in case of failure of any of the _control-plane_ nodes, since the load balancer will send requests to _control-plane_ nodes whose port is responsive but cannot handle requests.
 
-To avoid this problem, the health check of the load balancer created must be modified, using the HTTPS protocol and the _/readyz_ path. The port should be maintained, being 443 for GCP and 6443 for Azure.
+To avoid this problem, the health check of the load balancer created must be modified, using the HTTPS protocol and the _/readyz_ path. The port should be maintained, being 443 for GCP and 6443 for Azure.

stratio-docs/es/modules/ROOT/pages/installation.adoc

@@ -993,6 +993,7 @@ $ cat << EOF > policy.json
 		{
 			"Action": [
         			"ec2:DescribeAvailabilityZones",
+				"ec2:DescribeInstances",
 				"ec2:DescribeSecurityGroups",
 				"ec2:DescribeSubnets",
 				"elasticloadbalancing:DescribeListeners",