Docs and TF: Update EKS Kubernetes version to use 1.16 (googleforgame…

…s#1790)

* Update EKS Kubernetes version to use 1.16

Update Terraform and website to use 1.16 version.

* Update terraform-aws-eks version to the latest

Tested this version, both apply and two stages destruction works fine,
no resources left behind.

Co-authored-by: Robert Bailey <robertbailey@google.com>

install/terraform/modules/eks/eks.tf

@@ -18,7 +18,7 @@ terraform {
 }
 
 provider "aws" {
-  version = "= 2.51.0"
+  version = ">= 2.55.0"
   region  = var.region
 }
 
@@ -58,7 +58,7 @@ resource "aws_security_group" "worker_group_mgmt_one" {
 
 module "vpc" {
   source  = "terraform-aws-modules/vpc/aws"
-  version = "2.21.0"
+  version = "2.47.0"
 
   name                 = "test-vpc-lt"
   cidr                 = "10.0.0.0/16"
@@ -77,11 +77,11 @@ module "vpc" {
 }
 
 module "eks" {
-  source          = "git::github.com/terraform-aws-modules/terraform-aws-eks.git?ref=v7.0.1"
+  source          = "git::github.com/terraform-aws-modules/terraform-aws-eks.git?ref=v12.2.0"
   cluster_name    = var.cluster_name
   subnets         = module.vpc.public_subnets
   vpc_id          = module.vpc.vpc_id
-  cluster_version = "1.15"
+  cluster_version = "1.16"
 
   worker_groups_launch_template = [
     {

site/content/en/docs/Installation/Creating Cluster/eks.md

@@ -15,6 +15,7 @@ Possible steps are the following:
 1. Run `aws configure` to authorize your `awscli` with proper `AWS Access Key ID` and `AWS Secret Access Key`.
 1. Create an example cluster:
 
+{{% feature expiryVersion="1.9.0" %}}
 ```
 eksctl create cluster \
 --name prod \
@@ -26,6 +27,20 @@ eksctl create cluster \
 --nodes-max 4 \
 --node-ami auto
 ```
+{{% /feature %}}
+{{% feature publishVersion="1.9.0" %}}
+```
+eksctl create cluster \
+--name prod \
+--version 1.16 \
+--nodegroup-name standard-workers \
+--node-type t3.medium \
+--nodes 3 \
+--nodes-min 3 \
+--nodes-max 4 \
+--node-ami auto
+```
+{{% /feature %}}
 
 {{< alert title="Note" color="info">}}
 EKS does not use the normal Kubernetes networking since it