Preparing an EKS cluster ¶

This example provides instructions for creating a Kubernetes cluster using Amazon EKS.

Prerequisites ¶

We recommend installing and configuring eksctl, allowing for CLI interaction with the EKS cluster.

Manual creation ¶

Follow the Getting started with Amazon EKS for details on creating an EKS cluster. Or, using the ClusterConfig below as an example, deploy a K8s cluster with eksctl in ~20 minutes:

apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig

metadata:
  name: atlassian-cluster
  region: ap-southeast-2

managedNodeGroups:
  - name: appNodes
    instanceType: m5.large
    desiredCapacity: 2
    ssh: # enable SSH using SSM
      enableSsm: true

Cluster considerations

It's always a good idea to consider the following points before creating the cluster:

Geographical region - where will the cluster reside.
EC2 instance type - the instance type to be used for the nodes that make up the cluster.
Number of nodes - guidance on the resource dimensions that should be used for these nodes can be found in Requests and limits.

Adding the config above to a file named config.yaml provision the cluster:

eksctl create cluster -f config.yaml

Next step - Ingress controller

Having established a cluster, continue with provisioning the next piece of prerequisite infrastructure, the Ingress controller.