/wiliot-assignment

Primary LanguageHCL

Wiliot Assignment

1. Overview

This repository contains the code for a Flask application, infrastructure configuration using Terraform, and deployment configuration using a Helm chart.

2. Directory Structure

  • application/: Contains the Flask application code and Dockerfile.
  • terraform/: Contains Terraform configurations for setting up infrastructure.
  • helm/: Contains the Helm chart for deploying the application on Kubernetes.

3. Getting Started

3.1. Prerequisites

  • AWS cli
  • Docker
  • Kubernetes
  • Helm
  • Terraform
  • Run ./set-variables.sh file

3.2. Running the Application

3.2.1. Using Docker

  1. Build the Docker image:

    docker build -t ${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/wiliot-assignment:1.0.0 application/

  2. Run the Docker container:

    docker run -p 8080:8080 ${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/wiliot-assignment:1.0.0

3.2.2. Using Terraform, Kubernetes and Helm

3.2.2.1. Pre-Requisites
  • Create tfstate bucket
aws s3api create-bucket --bucket ${TFSTATE_BUCKET_NAME} --region eu-west-1 --create-bucket-configuration LocationConstraint=eu-west-1
  • Create limited user to read/write tfstate file inside previous bucket and note the access key and secret key
aws iam create-user --user-name ${TFSTATE_BUCKET_NAME}
aws iam create-policy --policy-name ${TFSTATE_BUCKET_NAME}-policy --policy-document file://${TFSTATE_BUCKET_NAME}.json
aws iam attach-user-policy --user-name ${TFSTATE_BUCKET_NAME} --policy-arn arn:aws:iam::${AWS_ACCOUNT_ID}:policy/${TFSTATE_BUCKET_NAME}-policy
aws --profile wiliot iam create-access-key --user-name ${TFSTATE_BUCKET_NAME}
  • Create a Route53 Zone and configure nameservers into domain This example considers a domain named my-assignments.net
3.2.2.2. Initialize Terraform using the access key and secret key created in the previous step:
cd terraform/
terraform init \
 -backend-config="bucket=${TFSTATE_BUCKET_NAME}" \
 -backend-config="key=terraform.tfstate" \
 -backend-config="region=eu-west-1" \
 -backend-config="access_key=${TFSTATE_ACCESS_KEY}" \
 -backend-config="secret_key=${TFSTATE_SECRET_KEY}"
3.2.2.3. Apply the Terraform configuration:
cd terraform \
terraform apply
cd ..
3.2.2.4. Push Docker Image to ECR
docker tag wiliot-assignment ${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/wiliot-assignment:1.0.0
aws ecr get-login-password | docker login --username AWS --password-stdin ${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com
docker push ${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com/wiliot-assignment:1.0.0
3.2.2.5. Package the Helm chart:
helm package helm/wiliot-assignment
3.2.2.6. Deploy the Helm chart:
helm install -n wiliot-assignment wiliot-assignment ./wiliot-assignment-1.0.0.tgz

3.2.3. Accessing the App:

https://app.my-assignments.net/

https://app.my-assignments.net/health