[single-cluster/aws] Install Calico as the CNI

Fixes #12953

This PR updates the EKS single cluster reference guides to install
calico as the CNI. This is important for the network policies tools
to work.

For GKE and AKS, There are already options to do the same which we
use already instead of doing it like this.

Signed-off-by: Tarun Pothulapati <[email protected]>

Author: Pothulapati

install/infra/modules/tools/aws-calico/main.tf

@@ -0,0 +1,15 @@
+provider "helm" {
+  kubernetes {
+    config_path = var.kubeconfig
+  }
+}
+
+resource "kubernetes_manifest" "calico" {
+  provisioner "local-exec" {
+    command = "kubectl patch ds -n kube-system aws-node -p '{\"spec\":{\"template\":{\"spec\":{\"nodeSelector\":{\"non-calico\": \"true\"}}}}}'"
+  }
+
+  provisioner "local-exec" {
+    command = "kubectl apply -f https://docs.projectcalico.org/manifests/calico-vxlan.yaml"
+  }
+}

install/infra/modules/tools/azure-external-dns/main.tf

@@ -1,7 +1,7 @@
-variable settings {}
-variable domain_name { default = "test"}
-variable kubeconfig { default = "conf"}
-variable txt_owner_id { default = "nightly-test"}
+variable "settings" {}
+variable "domain_name" { default = "test" }
+variable "kubeconfig" { default = "conf" }
+variable "txt_owner_id" { default = "nightly-test" }
 
 provider "helm" {
   kubernetes {

install/infra/single-cluster/aws/output.tf

@@ -3,7 +3,7 @@ output "url" {
 }
 
 output "cluster_name" {
-  value     = var.cluster_name
+  value = var.cluster_name
 }
 
 output "registry_backend" {

install/infra/single-cluster/aws/tools.tf

@@ -29,3 +29,8 @@ module "cluster-autoscaler" {
   cluster_id        = module.eks.cluster_id
   oidc_provider_arn = module.eks.oidc_provider_arn
 }
+
+module "calico" {
+  source     = "../../modules/tools/aws-calico"
+  kubeconfig = var.kubeconfig
+}