How I Built, Scanned, and Automated a Docker Pipeline

Short summary

Hands-on Docker and DevSecOps lab: build and containerize a Python Flask app, push to Docker Hub, and automate with GitHub Actions plus Trivy vulnerability scanning. Covers security hardening (non-root users, layer caching, .dockerignore), real debugging examples, and the complete pull-inspect-build-push-share workflow. Directly applicable for DevOps and infrastructure teams.

• •Build and containerize a Flask web app with Docker using security best practices and layer caching optimization
• •Push images to Docker Hub and automate the entire workflow with GitHub Actions and Trivy scanning gates
• •Real-world debugging walkthrough covering three common build and deployment issues with solutions

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