2048 game in few steps on AWS-EKS

 

Create an EKS cluster and deploy 2048 game into that cluster

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Task 1: Create an EKS cluster

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Name: <yourname>-eks-cluster-1

Use K8S version 1.25

Create an IAM role 'eks-cluster-role' with 1 policy attached: AmazonEKSClusterPolicy

Create another IAM role 'eks-node-grp-role' with 3 policies attached: 

(Allows EC2 instances to call AWS services on your behalf.)

    - AmazonEKSWorkerNodePolicy

    - AmazonEC2ContainerRegistryReadOnly

    - AmazonEKS_CNI_Policy

Choose default VPC, Choose 2 or 3 subnets

Choose a security group which open the ports 22, 80, 8080

cluster endpoint access: public

# For VPC CNI, CoreDNS and kube-proxy, choose the default versions, For CNI, latest and default are 

# different. But go with default.

Click 'Create'. This process will take 10-12 minutes. Wait till your cluster shows up as Active. 

Task 2: Add Node Groups to our cluster

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Now, lets add the worker nodes where the pods can run

Open the cluster > Compute > Add NodeGrp

Name: <yourname>-eks-nodegrp-1 

Select the role you already created

Leave default values for everything else

AMI - choose the default 1 (Amazon Linux 2)

change desired/minimum/maximum to 1 (from 2)

Enable SSH access. Choose a security group which allwos 22, 80, 8080

Choose default values for other fields 

Node group creation may take 2-3 minutes

Task 3: Authenticate to this cluster

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Reference:

https://docs.aws.amazon.com/eks/latest/userguide/create-kubeconfig.html

Open cloudshell

# Type on your AWS CLI window 

aws sts get-caller-identity

# observe your account and user id details

# Create a  kubeconfig file where it stores the credentials for EKS:

# kubeconfig configuration allows you to connect to your cluster using the kubectl command line.

aws eks update-kubeconfig --region region-code --name my-cluster

ex: aws eks update-kubeconfig --region us-east-1 --name unus-eks-cluster-1 # Use the cluster name you just 

created

# see if you can get the nodes you created

kubectl get nodes

# Install nano editor in cloudshell. We will need this in the next task

sudo yum install nano -y

Task 4: Create a new POD in EKS for the 2048 game

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# clean up the files in cloudshell (Optional)

rm *.* 

# create the config file in YAML to deploy 2048 game pod into the cluster

nano 2048-pod.yaml

### code starts ###

apiVersion: v1

kind: Pod

metadata:

   name: 2048-pod

   labels:

      app: 2048-ws

spec:

   containers:

   - name: 2048-container

     image: blackicebird/2048

     ports:

       - containerPort: 80

### code ends ###

# apply the config file to create the pod

kubectl apply -f 2048-pod.yaml

#pod/2048-pod created

# view the newly created pod

kubectl get pods

Task 5: Setup Load Balancer Service

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nano mygame-svc.yaml  

### code starts ###

apiVersion: v1

kind: Service

metadata:

   name: mygame-svc

spec:

   selector:

      app: 2048-ws

   ports:

   - protocol: TCP

     port: 80

     targetPort: 80

   type: LoadBalancer

### code ends ###

# apply the config file

kubectl apply -f mygame-svc.yaml

# view details of the modified service

kubectl describe svc mygame-svc

# Access the LoadBalancer Ingress on the kops instance

curl <LoadBalancer_Ingress>:<Port_number>

or

curl a06aa56b81f5741268daca84dca6b4f8-694631959.us-east-1.elb.amazonaws.com:80

(try this from your laptop, not from your cloudshell)

# Go to EC2 console. get the DNS name of ELB and paste the DNS into address bar of the browser

# It will show the 2048 game. You can play. (need to wait for 2-3 minutes for the 

# setup to be complete)

Task 3: Cleanup

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# Clean up all the resources created in the task

kubectl get pods

kubectl delete -f 2048-pod.yaml

kubectl get services

kubectl delete -f mygame-svc.yaml

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Adding Screenshots of process

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