Bootstrapping K0S cluster on AWS

This directory provides an example flow for using k0sctl with Terraform and AWS.

Prerequisites

• An account and credentials for AWS.
• k0sctl installed
• Terraform installed

Steps

1. Create terraform.tfvars file with needed details. You can use the provided terraform.tfvars.example as a baseline.
2. terraform init
3. (optional Create a Terraform Workspace). terraform workspace new cluster1
4. terraform apply
5. terraform output -raw k0s_cluster | k0sctl apply --config -
6. terraform output -raw k0s_cluster | k0sctl kubeconfig --config - > kubeconfig-$(terraform workspace show)
7. Test your cluster. KUBECONFIG=$(pwd)/kubeconfig-$(terraform workspace show) kubectl get nodes

TODO : cloud provider

1. Label each controller node kubectl label node <controller> node-role.kubernetes.io/master=
2. Taint controller nodes kubectl taint nodes -l node-role.kubernetes.io/master= node-role.kubernetes.io/master:NoSchedule
3. Deploy CloudControllerManager. kubectl apply -f ccm.yaml

Check Ingress

1. kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.0.3/deploy/static/provider/aws/deploy.yaml
2. export EXTERNAL_DNS=$(kubectl get services --namespace ingress-nginx ingress-nginx-controller --output jsonpath='{.status.loadBalancer.ingress[0].hostname}')
3. envsubst < dockerdemo.yaml | kubectl apply -f -
4. curl -k https://${EXTERNAL_DNS}

Tear down

1. kubectl delete -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.0.3/deploy/static/provider/aws/deploy.yaml
2. terraform destroy