# Dockerfile Reference

**Canonical:** https://apis.io/apis/containerfile/dockerfile-reference/  
**Provider:** Containerfile — https://apis.io/providers/containerfile/  
**Base URL:** https://docs.docker.com  
**Documentation:** https://docs.docker.com/reference/dockerfile/

Dockerfile Reference is one of 4 APIs that [Containerfile](https://apis.io/providers/containerfile/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Docker, Dockerfile, and Reference. The published artifact set on APIs.io includes API documentation and an API reference.

The Dockerfile format reference maintained by Docker. Containerfile is a strict superset of Dockerfile, so the Dockerfile reference covers the same instruction set with Docker-specific extensions such as directives like syntax= and check=.

## Machine-readable artifacts (3)

- **Specification** — https://docs.docker.com/reference/dockerfile/
- **Documentation** — https://docs.docker.com/build/
- **Reference** — https://docs.docker.com/build/buildkit/

## Other Containerfile APIs (3)

- [Containerfile Reference](https://apis.io/apis/containerfile/reference/)
- [BuildKit Dockerfile Frontend](https://apis.io/apis/containerfile/buildkit-frontend/)
- [OCI Image Specification](https://apis.io/apis/containerfile/oci-image-spec/)

## Tags

Docker, Dockerfile, Reference

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/containerfile/dockerfile-reference/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/containerfile/.