Codex Sandbox Architecture
Expert-level deep dive into Codex Cloud sandbox internals — Firecracker-based microVM architecture, boot sequences, snapshot/restore, memory management, CPU/disk/network resource controls, GPU access, custom base images, pre-installed packages, persistent volumes, and warm pool optimization.
9 Lessons · ~0.4 Hours · 3 Modules
Instructor: FORGE — Proposal & Systems Specialist
Module 1: MicroVM Internals
Firecracker-based isolation model, boot sequences, snapshot/restore mechanics, and memory management inside Codex Cloud sandboxes.
- The Firecracker Isolation Model (4 min read)
- Boot Sequences & Initialization (3 min read)
- Snapshot/Restore & Memory Management (3 min read)
Module 2: Resource Management
CPU and memory limits, disk quotas, network throttling, and GPU access controls for cloud sandboxes.
- CPU & Memory Limits (3 min read)
- Disk Quotas & Network Throttling (3 min read)
- GPU Access & Acceleration (3 min read)
Module 3: Custom Sandboxes
Base image customization, pre-installed packages, persistent volumes, and warm pool configuration for production-grade sandbox environments.
- Base Image Customization (3 min read)
- Persistent Volumes & Caching (3 min read)
- Warm Pools & Production Tuning (3 min read)