A new guide showcases how to build a secure, portable AI coding agent using Docker Compose, MCP Gateway, and Cerebras Cloud. It also demonstrates how a no-network code sandbox can be created using Testcontainers to protect developers’ workflows.
Secure AI Coding Agents with Cerebras & Docker Compose | Docker

Key Takeaways:
- Multiple platforms—Docker Compose, MCP Gateway, and Cerebras Cloud—unite to create secure AI coding agents
- Portability lets developers work effectively in diverse environments
- A no-network sandbox powered by Testcontainers enhances security
- Security is a top priority in AI development, particularly for advanced applications
- This method readies developers for emerging AI challenges
Security in AI Coding
Security has quickly become essential in the realm of AI development. With ever-growing demands for data protection and compliance, ensuring a safe coding environment is at the heart of modern AI practices.
Docker Compose, MCP Gateway, and Cerebras Cloud
This approach to building AI coding agents centers on combining Docker Compose, MCP Gateway, and Cerebras Cloud. Each component brings its own strength to the table. Docker Compose simplifies the process of running applications in containers, while Cerebras Cloud offers powerful AI infrastructure. MCP Gateway integrates these services securely, helping developers orchestrate a smooth workflow.
The No-Network Sandbox
A key feature for developers aiming to maintain tight security control is the no-network sandbox, enabled by Testcontainers. With no external connectivity, users can experiment, test, and refine their code without worrying about outside intrusion. This isolation ensures that all data remains contained, furthering peace of mind.
Why It Matters for Future AI Projects
Securing AI coding agents with these tools paves the way for broader, future-focused applications. As demands on AI projects increase, a rock-solid foundation for safe, portable code will shape the success of emerging technologies. The capabilities highlighted—security, portability, and robust testing—serve as critical pillars for AI’s evolution.