Add kubectl setup guide

docs/guides/kubectl-setup.md

@@ -0,0 +1,45 @@
+# Set up kubectl
+
+_WARNING: you are on the master branch, please refer to the docs on the branch that matches your `cortex version`_
+
+Although it is not necessary to use `kubectl` to interact with Cortex clusters, advanced users can use `kubectl` to get more granular visibility into the cluster (since Cortex is built on top of Kubernetes).
+
+Here's how to set up `kubectl` and connect it to your existing Cortex cluster:
+
+## Step 1
+
+Install `kubectl` by following these [instructions](https://kubernetes.io/docs/tasks/tools/install-kubectl/).
+
+## Step 2
+
+Install `eksctl` by following these [instructions](https://eksctl.io/introduction/#installation).
+
+## Step 3
+
+Make sure that your AWS credentials are available in your current shell environment. `eksctl` will search for credentials in the `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` environment variables, or your `aws` CLI's credentials file (which can be created with `aws configure`).
+
+## Step 4
+
+Run the following command:
+
+```bash
+$ eksctl utils write-kubeconfig --cluster=<cluster_name> --region=<region>
+```
+
+Where `<cluster_name>` is the name of your cluster and `<region>` is the region of the cluster. These were specified when your cluster was created, either via command line prompts or your cluster configuration file (e.g. `cluster.yaml`). The default cluster name is `cortex`, and the default region is `us-east-1`.
+
+## Step 4
+
+Test `kubectl` against the existing Cortex cluster by running a command like the following. Your output will be different.
+
+```bash
+$ kubectl get pods
+
+NAME                            READY   STATUS    RESTARTS   AGE
+cloudwatch-agent-statsd-flwmv   1/1     Running   0          6m16s
+fluentd-bv8xl                   1/1     Running   0          6m20s
+fluentd-vrwhw                   1/1     Running   0          6m20s
+operator-dc489b4f9-mmwkz        1/1     Running   0          6m14s
+```
+
+`kubectl` is now configured!

docs/summary.md

@@ -70,6 +70,7 @@
 * [Set up VPC peering](guides/vpc-peering.md)
 * [SSH into worker instance](guides/ssh-instance.md)
 * [Single node deployment](guides/single-node-deployment.md)
+* [Set up kubectl](guides/kubectl-setup.md)
 
 ## Contributing