Add EKS Istio Dashboards (#194)

* Update readme

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* new istio readme

* Updated mkdocs.yml

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* Test

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* Testing

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* Adding Istio dashboards

* Updating URL's

* Removing dashboards

* Updates from pre-commit

* Update istio.md

* Removing empty file

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* Istio Documentation Updates

Added istioctl prereq, updated dashboards image

* Updated setup and cleanup of Istio Bookinfo

Updated Istio Bookinfo sample app instructions, included clean up of Bookinfo resources

* Updating image and removing advanced configuration

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---------

Co-authored-by: Prithvi Reddy <ypreddy@amazon.com>
Co-authored-by: Prithvi Reddy <47993564+preddy727@users.noreply.github.com>

examples/eks-istio/main.tf

@@ -0,0 +1,121 @@
+provider "aws" {
+  region = local.region
+}
+
+data "aws_eks_cluster_auth" "this" {
+  name = var.eks_cluster_id
+}
+
+data "aws_eks_cluster" "this" {
+  name = var.eks_cluster_id
+}
+
+provider "kubernetes" {
+  host                   = local.eks_cluster_endpoint
+  cluster_ca_certificate = base64decode(data.aws_eks_cluster.this.certificate_authority[0].data)
+  token                  = data.aws_eks_cluster_auth.this.token
+}
+
+provider "helm" {
+  kubernetes {
+    host                   = local.eks_cluster_endpoint
+    cluster_ca_certificate = base64decode(data.aws_eks_cluster.this.certificate_authority[0].data)
+    token                  = data.aws_eks_cluster_auth.this.token
+  }
+}
+
+locals {
+  region               = var.aws_region
+  eks_cluster_endpoint = data.aws_eks_cluster.this.endpoint
+  create_new_workspace = var.managed_prometheus_workspace_id == "" ? true : false
+  tags = {
+    Source = "github.com/aws-observability/terraform-aws-observability-accelerator"
+  }
+}
+
+# deploys the base module
+module "aws_observability_accelerator" {
+  source = "../../"
+  # source = "github.com/aws-observability/terraform-aws-observability-accelerator?ref=v2.0.0"
+
+  aws_region = var.aws_region
+
+  # creates a new Amazon Managed Prometheus workspace, defaults to true
+  enable_managed_prometheus = local.create_new_workspace
+
+  # reusing existing Amazon Managed Prometheus if specified
+  managed_prometheus_workspace_id = var.managed_prometheus_workspace_id
+
+  # sets up the Amazon Managed Prometheus alert manager at the workspace level
+  enable_alertmanager = true
+
+  # reusing existing Amazon Managed Grafana workspace
+  managed_grafana_workspace_id = var.managed_grafana_workspace_id
+
+  tags = local.tags
+}
+
+module "eks_blueprints_kubernetes_addons" {
+  source = "github.com/aws-ia/terraform-aws-eks-blueprints//modules/kubernetes-addons?ref=v4.32.0"
+
+  eks_cluster_id = var.eks_cluster_id
+  #eks_cluster_endpoint = module.eks_blueprints.eks_cluster_endpoint
+  #eks_oidc_provider    = module.eks_blueprints.oidc_provider
+  #eks_cluster_version  = module.eks_blueprints.eks_cluster_version
+
+  # EKS Managed Add-ons
+  #enable_amazon_eks_vpc_cni    = true
+  #enable_amazon_eks_coredns    = true
+  #enable_amazon_eks_kube_proxy = true
+
+  # Add-ons
+  enable_metrics_server     = true
+  enable_cluster_autoscaler = true
+
+  # Tetrate Istio Add-on
+  enable_tetrate_istio = true
+
+  tags = local.tags
+}
+
+module "eks_monitoring" {
+  source = "../../modules/eks-monitoring"
+  # source = "github.com/aws-observability/terraform-aws-observability-accelerator//modules/eks-monitoring?ref=v2.0.0"
+  enable_istio   = true
+  eks_cluster_id = var.eks_cluster_id
+
+  # deploys AWS Distro for OpenTelemetry operator into the cluster
+  enable_amazon_eks_adot = true
+
+  # reusing existing certificate manager? defaults to true
+  enable_cert_manager = true
+
+  # deploys external-secrets in to the cluster
+  enable_external_secrets = true
+  grafana_api_key         = var.grafana_api_key
+  target_secret_name      = "grafana-admin-credentials"
+  target_secret_namespace = "grafana-operator"
+  grafana_url             = module.aws_observability_accelerator.managed_grafana_workspace_endpoint
+
+  # control the publishing of dashboards by specifying the boolean value for the variable 'enable_dashboards', default is 'true'
+  enable_dashboards = var.enable_dashboards
+
+  managed_prometheus_workspace_id = module.aws_observability_accelerator.managed_prometheus_workspace_id
+
+  managed_prometheus_workspace_endpoint = module.aws_observability_accelerator.managed_prometheus_workspace_endpoint
+  managed_prometheus_workspace_region   = module.aws_observability_accelerator.managed_prometheus_workspace_region
+
+  # optional, defaults to 60s interval and 15s timeout
+  prometheus_config = {
+    global_scrape_interval = "60s"
+    global_scrape_timeout  = "15s"
+  }
+
+  enable_logs = true
+
+  tags = local.tags
+
+  depends_on = [
+    module.aws_observability_accelerator
+  ]
+}