The example in this repository relies on GitOps, using Flux v2 to setup the workloads in the EKS cluster after it has been provisioned.

The first step is to fork this repository, which will provide you with a space to make changes and push them to the EKS. Then clone the repository locally.

Next, copy the cluster.yml.template and name it cluster.yml:

cp cluster.yml.template cluster.yml

You will need to subsitute in your GitHub username in the new cluster.yml file in order for Flux to use the correct repository. You can either manually change the $GITHUB_USERNAME value in the file, or do something like this:

GITHUB_USERNAME="yourusername" eval "echo \"$(sed 's/"/\\"/g' cluster.yml.template)\"" > cluster.yml

By default the cluster configuration generated will use the us-west-2 region, if you wish to modify this you can further edit the cluster.yml file. Make sure to change both the region and the availability zones.

You must also create a GitHub Personal Access Token for Flux to use to access GitHub repositories.

Create initial cluster:

export GITHUB_TOKEN='<personal access token>'

eksctl create cluster -f cluster.yml

Get relevant endpoints:

todo

Add Graviton2 node group:

eksctl create nodegroup -f graviton2-nodegroup.yml --skip-outdated-addons-check

Add the following to workload-1 configuration to migrate (flux/apps/workload-1/release.yaml):

spec:
  [...]
  values:
    [...]
    tolerations:
    - key: "graviton2"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"
    nodeSelector:
      kubernetes.io/arch: arm64

Commit and push this to your GitHub repository.

If you monitor the resources in the EKS cluster you will see the Deployment updated, which will trigger all the Pods to be recycled. They will all end up scheduled on arm64 nodes.

Delete the cluster:

eksctl delete cluster -f cluster.yml --wait