Model deployment using FASTAPI and local kubernetes

Overview

This project demonstrates the deployment of a Scikit-learn model in Kubernetes using FastAPI as the backend. The API supports asynchronous processing, allowing concurrent users to effectively utilize its capabilities. The API behaves as a job queue, enabling efficient handling of multiple requests. After the job is done, results are written to a MongoDB database, and they can be retrieved later using the unique job ID.

Getting Started

1. Start Minikube:

   minikube start --memory 4096

2. Deploy the fastapi application and mongodb database.

   kubectl apply -f fastapi_heart.yaml -f mongodb.yaml

3. Check the pods created.

   kubectl get pods

4. Check the service created.

   kubectl get svc

5. Access the FastAPI application.

   minikube service <service_name>

Usage

1. You can use the FASTAPI Swagger to test the /predict and the /result endpoint.
2. Use curl to send a post request.

   • curl -X 'POST' \
     'http://127.0.0.1:63736/predict' \
     -H 'accept: application/json' \
     -H 'Content-Type: application/json' \
     -d '{
     "Age": 0,
     "Sex": 0,
     "ChestPainType": 0,
     "RestingBP": 0,
     "Cholesterol": 0,
     "FastingBS": 0,
     "RestingECG": 0,
     "MaxHR": 0,
     "ExerciseAngina": 0,
     "Oldpeak": 0,
     "ST_Slope": 0
     }```
     
     

Server response will be something like this:

{
"status": "pending",
"job_id": "<job_id>"
}

Now use the job id to the /result endpoint

 - curl -X 'GET' \
'http://127.0.0.1:63736/result/<job_id>' \
-H 'accept: application/json'

Sever response will be something like this:

{
"job_id": "<job_id>",
"prediction": "1",
"elapsed_time": "0.059065818786621094"
}