Ingress Controller ALB

ALB Ingress Controller

Deploy RBAC Roles and RoleBindings needed by the AWS ALB Ingress controller:

kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/aws-alb-ingress-controller/v1.0.0/docs/examples/rbac-role.yaml

Download the AWS ALB Ingress controller YAML into a local file:

curl -sS "https://raw.githubusercontent.com/kubernetes-sigs/aws-alb-ingress-controller/v1.0.0/docs/examples/alb-ingress-controller.yaml" > alb-ingress-controller.yaml

Edit the AWS ALB Ingress controller YAML to include the clusterName of the Kubernetes (or) Amazon EKS cluster. You can check the Name of the Cluster with the CLI

aws eks list-clusters

Output

{
        "clusters": [
                "eksworkshop-eksctl"
                    ]
}

Edit the –cluster-name flag to be the real name of our Kubernetes (or) Amazon EKS cluster in your alb-ingress-controller.yaml file. In this case, our cluster name was eksworkshop-eksctl as apparent from the output.

Deploy the AWS ALB Ingress controller YAML:

kubectl apply -f alb-ingress-controller.yaml

Verify that the deployment was successful and the controller started:

kubectl logs -n kube-system $(kubectl get po -n kube-system | egrep -o alb-ingress[a-zA-Z0-9-]+)

You should be able to see the following output:

-------------------------------------------------------------------------------
AWS ALB Ingress controller
  Release:    v1.0.0
  Build:      git-c25bc6c5
  Repository: https://github.com/kubernetes-sigs/aws-alb-ingress-controller
-------------------------------------------------------------------------------

Deploy Sample Application

Now let’s deploy a sample 2048 game into our Kubernetes cluster and use the Ingress resource to expose it to traffic:

Deploy 2048 game resources:

kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/aws-alb-ingress-controller/v1.0.0/docs/examples/2048/2048-namespace.yaml
kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/aws-alb-ingress-controller/v1.0.0/docs/examples/2048/2048-deployment.yaml
kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/aws-alb-ingress-controller/v1.0.0/docs/examples/2048/2048-service.yaml

Deploy an Ingress resource for the 2048 game:

kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/aws-alb-ingress-controller/v1.0.0/docs/examples/2048/2048-ingress.yaml

After few seconds, verify that the Ingress resource is enabled:

kubectl get ingress/2048-ingress -n 2048-game

You should be able to see the following output:

NAME         HOSTS         ADDRESS         PORTS   AGE
2048-ingress   *    DNS-Name-Of-Your-ALB    80     3m

Open a browser. Copy and paste your “DNS-Name-Of-Your-ALB”. You should be to access your newly deployed 2048 game – have fun!