Modal Container Images

Use this skill when defining the environment (packages, system deps, files, GPU libraries) that Modal Functions run in.

When to Use This Skill

• Installing Python packages for remote Functions
• Adding system packages (apt)
• Bringing local files/code into containers
• Using existing Dockerfiles or registry images
• Setting up CUDA/GPU-accelerated environments
• Publishing/sharing canonical images across Apps and Sandboxes (Named Images)
• Composing reusable Image recipes with pipe()
• Optimizing image build times and layer caching

Core Workflow