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Python sample project for EKS

Quality Gate Status Lines of Code

The sample project to deploy Python REST API application, Service, HorizontalPodAutoscaler, Ingress on EKS.

Prerequisites

Installation

Set AWS configurations

Set AWS configurations with aws configure for default region and keys:

aws configure
AWS Access Key ID [None]: <enter-your-access-key>
AWS Secret Access Key [None]: <enter-your-secret-key>
Default region name [None]: us-east-1
Default output format [None]: 
aws configure get default.region
us-east-1

Create an EKS cluster and deploy AWS Load Balancer Controller

Refer to the https://github.com/DevSecOpsSamples/eks-eksctl page.

Set environment variables

REGION=$(aws configure get default.region)
ACCOUNT_ID=$(aws sts get-caller-identity --query Account --output text)
CLUSTER_NAME=$(kubectl config current-context | cut -d '@' -f2 | cut -d '.' -f1)
echo "REGION: ${REGION}, ACCOUNT_ID: ${ACCOUNT_ID}, CLUSTER_NAME: ${CLUSTER_NAME}"

Deploy python-ping-api

Build and push to ECR:

cd ../app
docker build -t python-ping-api . --platform linux/amd64

docker tag python-ping-api:latest ${ACCOUNT_ID}.dkr.ecr.${REGION}.amazonaws.com/python-ping-api:latest

aws ecr get-login-password --region ${REGION} | docker login --username AWS --password-stdin ${ACCOUNT_ID}.dkr.ecr.${REGION}.amazonaws.com

docker push ${ACCOUNT_ID}.dkr.ecr.${REGION}.amazonaws.com/python-ping-api:latest

Create and deploy K8s Deployment, Service, HorizontalPodAutoscaler, Ingress using the python-ping-api-template.yaml template file.

sed -e "s|<account-id>|${ACCOUNT_ID}|g" python-ping-api-template.yaml | sed -e "s|<region>|${REGION}|g" > python-ping-api.yaml
cat python-ping-api.yaml

kubectl apply -f python-ping-api.yaml

It may take around 5 minutes to create a load balancer, including health checking.

Confirm that Pod and ALB logs.

kubectl logs -l app=python-ping-api

kubectl describe pods

kubectl logs -f $(kubectl get po -n kube-system | egrep -o 'aws-load-balancer-controller-[A-Za-z0-9-]+') -n kube-system

Cleanup

kubectl delete -f app/python-ping-api.yaml

References