Deploy Flask on AWS with GitHub Actions - Production Blueprint 2026

Configuration Files

2 files

Production-ready configuration files with detailed comments and best practices. Each file works together as a complete deployment solution.

Flask production Dockerfile

dockerfile

FROM python:3.11-slim

WORKDIR /app

# Install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application
COPY . .

# Run as non-root user
RUN useradd -m flask && chown -R flask:flask /app
USER flask

EXPOSE 5000

CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "app:app"]

Flask dependencies

text

Flask==3.0.0
gunicorn==21.2.0
python-dotenv==1.0.0

Prerequisites

AWS account with ECS and ECR
GitHub repository
Flask application ready

Deployment Steps

Create ECR repository for Flask app
Set up ECS cluster and task definition
Configure environment variables
Add AWS credentials to GitHub Secrets
Push to main to deploy

Additional Notes

Use gunicorn for production WSGI server
Configure Flask environment to production
Use environment variables for secrets
Consider using Application Load Balancer