Containerfile Syntax

Target audience: Developers, Maintainers Goal: Understand StageX-specific Containerfile patterns.

This page is under active development. It will document StageX-specific Containerfile syntax and patterns.

Planned coverage includes:

• FROM stagex/* image patterns and available tags
• COPY --from= layer composition for multi-stage builds
• Package locking syntax (@sha256:) for content-addressed reproducibility
• BuildKit-specific directives used by StageX (e.g., --group-add, --mount)
• Best practices for combining StageX pallets into minimal scratch-based images

See Also

• How-To: Build a Rust Application — Practical Containerfile patterns for Rust projects.
• Explanation: OCI-Native Package Management — How OCI layers enable FROM scratch packaging.