Express sample app on EKS cluster

Requirements:

1. docker installed
2. aws-cli installed and configured
3. cdk installed
4. python installed
5. kubectl installed

Setup the environment:

Define the aws account to deploy:

CDK_ACCOUNT=<account>

Define the aws region to deploy:

CDK_REGION=<region>

Define the kubeconfig temp location:

KUBECONFIG=/tmp/.kube/config

Install the dependencies:

pip install -r requirements.txt

Bootstrap the cdk:

cdk bootstrap aws://$CDK_ACCOUNT/$CDK_REGION

Deploy the app

Deploy the vpc stack:

cdk deploy MissionDevVps

Deploy the eks stack:

cdk deploy MissionDevEks 

Deploy the image stack:

cdk deploy MissionDevImage

Copy the image name from the stack output and paste it in the container image placeholder at express-sample-app/deployment.yaml

Get the kubeconfig:

aws eks update-kubeconfig --name mission-dev --region $CDK_REGION

Test the kubeconfig credentials

kubectl --kubeconfig $KUBECONFIG get ns

Apply the template:

kubectl --kubeconfig $KUBECONFIG apply -f express-sample-app/deployment.yaml

Test the app

Port-forward into the sample app:

kubectl --kubeconfig $KUBECONFIG port-forward service/express-app 3000:3000

Test the app is working:

curl localhost:3000

Destroy the resources

To destroy the resources run:

cdk destroy --all