Add Grafana integration walkthrough for Kubernetes (#338)

walkthroughs/eks/README.md

@@ -5,6 +5,7 @@ In this walkthrough we will be setting up AWS App Mesh with Amazon Elastic Conta
 * [Base deployment](base.md)
 * Integrations:
   * Observability:
-    * [Prometheus](o11y-prometheus.md)
     * [CloudWatch](o11y-cloudwatch.md)
+    * [Grafana](o11y-grafana.md)
+    * [Prometheus](o11y-prometheus.md)
     * [X-Ray](o11y-xray.md)

walkthroughs/eks/o11y-grafana.md

@@ -0,0 +1,49 @@
+# App Mesh with EKS—Observability: Grafana
+
+NOTE: Before you start with this part, make sure you've gone through the [base deployment](base.md) of App Mesh with EKS. In other words, the following assumes that an EKS cluster with App Mesh configured is available and the prerequisites (aws, kubectl, jq, etc. installed) are met.
+
+[Grafana](https://grafana.com/) is open source visualization and analytics software. It allows you to query, visualize, alert on, and explore your metrics exported via Prometheus or other monitoring systems.
+
+## Installation
+
+### Option 1: Quick setup
+
+Prequisities:
+  * AWS App Mesh [Prometheus](https://github.com/aws/eks-charts/tree/master/stable/appmesh-prometheus)
+
+App Mesh provides a basic installation to setup Grafana quickly using Helm. To install the Grafana pre-configured to work with App Mesh, follow the instructions in [appmesh-Grafana](https://github.com/aws/eks-charts/blob/master/stable/appmesh-grafana/README.md) Helm charts.
+
+
+### Option 2: Existing Grafana deployment
+
+If you already have a Grafana setup and you're interested in using the Grafana dashboards provided by App Mesh, you can find the dashboards [here](https://github.com/aws/eks-charts/tree/master/stable/appmesh-grafana/dashboards)
+
+## Dashboards
+
+You can use Grafana to build your own dashboards using the available Prometheus metrics. App Mesh offers pre-configured dashboards for App Mesh Kubernetes Controller and mesh data plane.
+
+**Control Plane Dashboard**: provides overview of health of the App Mesh Kubernetes Controller
+
+**Data Plane Dashboard**: provides overview of Envoy metrics and health
+
+## Usage
+
+For the testing/demo (Option 1 installation), you may use port-forwarding to the Grafana endpoint:
+
+```
+kubectl -n appmesh-system port-forward svc/appmesh-grafana 3000:3000
+```
+
+Here’s a view of a sample control plane dashboard:
+
+![Grafana App Mesh control plane dashboard](grafana-dashboard-0.png)
+
+Here’s a view of a sample data plane dashboard:
+
+![Grafana App Mesh data plane dashboard](grafana-dashboard-1.png)
+
+## Cleanup
+
+```
+helm delete appmesh-grafana -n appmesh-system
+```