Welcome to my open-source repository dedicated to the practical world of DevSecOps, Application Security, and Cloud Security. This is a curated collection of materials, notes, and tools accumulated during my tenure as a DevSecOps and AppSec Engineer.
This repository is designed to be a hands-on guide for engineers, providing real-world examples, configurations, and insights to help you build more secure, robust, and automated systems from code to cloud.
Disclaimer: This repository contains materials for educational and informational purposes only.
- The eBooks are provided for personal review and exploration. Please support authors by purchasing official copies if you find them valuable.
- Always test configurations and commands in a non-production environment first. The examples are provided "as-is."

This vault is organized into several key areas:
A compilation of my personal notes on various DevSecOps and AppSec concepts, methodologies, and best practices. This is distilled knowledge from hands-on experience.
A selection of books and long-form articles covering:
- DevSecOps culture and implementation
- Secure Software Development Lifecycle (SDLC)
- Cloud Security fundamentals
- Container and Kubernetes security
- Threat modeling and risk assessment
Ready-to-use (or adapt) configuration files for your projects:
- YAML Manifests: For Kubernetes, Docker Compose, CI/CD pipelines (GitHub Actions, GitLab CI, Jenkinsfile).
- Bash Scripts: For automation, security scanning, and system hardening.
Practical examples of integrating security tools directly into Continuous Integration and Continuous Delivery pipelines:
- SAST (Static Application Security Testing): Integration with tools like Semgrep, Bandit, SonarQube.
- SCA (Software Composition Analysis): Using tools like OWASP Dependency-Check, Snyk, Dependabot.
- DAST (Dynamic Application Security Testing) & IaC Scanning: Examples for checking running environments and infrastructure-as-code.
- Gating Mechanisms: How to fail a build or require approval based on security findings.
Condensed instructions and tips for using popular security and DevOps tools effectively.
Actionable advice and code snippets for securing your cloud infrastructure:
- Identity and Access Management (IAM) best practices.
- Secure network configurations (VPC, Security Groups, Firewall Rules).
- Hardening guidelines for popular cloud services (Compute, Storage, Databases).
- Compliance and auditing setup.
- Explore: Browse the folders. The structure is meant to be intuitive.
- Learn: Read the notes and guides to understand the 'why' behind the practices.
- Copy & Adapt: Use the config samples and scripts as a starting point for your own projects. Remember to customize them for your specific environment and needs.
- Contribute: Found an error? Have a better way to do something? Pull Requests are welcome!
This is a living repository. Contributions are highly encouraged!
- Found a typo or an error? Open an Issue or a Pull Request.
- Have a great example or guide to share? Fork the repo and submit a PR.
- Want to suggest a new topic? Let's discuss it in the Issues.
Let's build the most comprehensive practical DevSecOps resource together!
The code and scripts in this repository are licensed under the MIT License - see the LICENSE
file for details. This does not cover the licensing of the eBooks or other provided external materials; they remain the property of their respective authors and publishers and are shared here for educational purposes only.
Disclaimer: This repository is a personal collection and is not affiliated with any of my current or past employers. All information is provided for educational purposes only. Always follow your organization's internal security policies and procedures.
Happy and secure coding! 🛡️