Introduction to Docker & Container Security

🐳 From Deployment to Defense

Introduction
Docker revolutionized software deployment. But containers, if insecure, can become backdoors into your infrastructure.

What is Docker?
A platform for packaging apps and dependencies into containers — lightweight, portable environments.

Common Container Attacks

• Exploiting exposed Docker APIs.
• Container escape → attacker breaks into the host.
• Poisoned base images from public registries.

OWASP Top 10 for Containers

• Insecure images (A1).
• Poor secrets management (A2).
• Insecure container runtime configs (A3).
• Privileged containers (A4).
• Lack of monitoring (A5).

Best Practices

1. Use trusted base images.
2. Apply least-privilege principle.
3. Enable Docker Content Trust (DCT).
4. Regular vulnerability scanning (Trivy, Clair).
5. Implement runtime security (Falco).

Conclusion
Containers make development faster, but security must scale with speed. Securing Docker isn’t optional — it’s survival.