🚀 Deploying a Simple Flask App with Docker

Creating a Dockerized Flask app is a great way to ensure your application runs consistently across different environments. In this guide, we'll walk you through the process step-by-step using emojis for a fun twist! 😊

📝 Prerequisites

Before we start, make sure you have the following installed:

• 🐍 Python

• 🐳 Docker

• 💻 A code editor (like VS Code)

• 💻 EC2 Machine (AWS)

📂 Project Structure

🛠️ Step-by-Step Guide

1. Set up EC2 machine and log-in using Gitbash and Install docker on EC2 machine

2.📦 Setting Up Your Flask App

from flask import Flask
helloworld = Flask(__name__)
@helloworld.route("/")
def run():
    return "{\"message\":\"Hey there python\"}"

if __name__=="__main__":
    helloworld.run(host="0.0.0.0", port=int("3000"), debug=True)

3. 📜 Listing Dependencies

Next, list your dependencies in requirements.txt.

requirements.txt:

flask

4. 🐳 Creating the Dockerfile

Now, create a Dockerfile to define your Docker image.

Dockerfile :

FROM python:3-alpine3.15
WORKDIR /app
COPY . /app
RUN pip install -r requirement.txt
EXPOSE 3000
CMD python ./index.py

5. 🏗️ Building the Docker Image

With your Dockerfile in place, build your Docker image.

docker build -t divyasatpute/hey-python-flask:latest .

6.🚢 Running the Docker Container

Once the image is built, run it using Docker.

docker container run -d -p 3000:3000 divyasatpute/hey-python-flask:latest

🔍 Verify the Deployment

Open your web browser and navigate to http://localhost:3000. You should see "Hey there python!" 🎉

Now Everything is working fine then our last step is only pending which is nothing but PUSH ON OUR DOCKERHUB

7 .Push Image in our DockerHub Account

docker push divyasatpute/hey-python-flask:latest

Make sure that you can replace your own username and the things whenever its needed :

📋 Summary

• ✍️ Created a simple Flask app

• 📜 Listed dependencies in requirements.txt

• 🐳 Defined a Dockerfile

• 🏗️ Build the Docker image

• 🚢 Run the Docker container

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Congratulations! You've successfully Dockerized your Flask app! 🥳 Now your app can run consistently in any environment.

Here I am showing all the results you can also Refer :

Feel Free to ask or comment if you are facing some issue