Dockerizing Python Code

Clone repo

git clone https://github.com/atulkamble/docker-python-app.git
cd docker-python-app

Prerequisites

1. Ensure Docker is installed on your system: Install Docker if it’s not already installed:

   sudo yum install docker -y

2. Install Git: If Git is not installed, install it:

   sudo yum install git -y

3. Install Python: If Python is not installed, install it:

   sudo yum install python -y

Steps to Dockerize Python Code

1. Clone the Docker Python Project Repository:

   git clone https://github.com/atulkamble/dockerpythonproject.git
   cd dockerpythonproject

2. Setup Docker: Start the Docker service:

   sudo systemctl start docker

Enable Docker to start on boot: bash sudo systemctl enable docker Verify Docker installation: bash docker --version

3. Clone the Test DevOps Project Repository:

   git clone https://github.com/atulkamble/testdevopsproject.git
   cd testdevopsproject/

4. Configure Git: Set up your Git user details:

   git config --global user.name "atulkamble"
   git config --global user.email "atul_kamble@hotmail.com"

5. Create and Test Python Script: Create a Python script file:

   touch sum.py
   sudo nano sum.py

Add your Python code to sum.py and test it: bash python3 sum.py

6. Create Dockerfile: Create a Dockerfile:

   touch Dockerfile
   sudo nano Dockerfile

Add the following content to your Dockerfile: ```dockerfile # Use the official Python image from the Docker Hub FROM python:3.8-slim

 # Set the working directory in the container
 WORKDIR /app

 # Copy the current directory contents into the container at /app
 COPY . /app

 # Install any needed packages specified in requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt

 # Make port 80 available to the world outside this container
 EXPOSE 80

 # Define environment variable
 ENV NAME World

 # Run sum.py when the container launches
 CMD ["python", "sum.py"]
 ```

7. Build and Push Docker Image: Log in to Docker Hub:

   sudo docker login

Build your Docker image: bash sudo docker build -t atuljkamble/pythonproject . Verify the Docker image is built: bash sudo docker images Push the Docker image to Docker Hub: bash sudo docker push atuljkamble/pythonproject

8. Run Docker Container: Run your Docker container:

   sudo docker run atuljkamble/pythonproject

List all Docker containers to verify it is running: bash sudo docker ps -a

By following these steps, you will have successfully Dockerized your Python application, built a Docker image, and run it as a container.