Many tools building Open Container Initiative (OCI) Linux container images have adopted the Dockerfile format to specify how a container should be built. Examples are tools like kaniko, Buildah, and Podman.

Since these initiatives are not driven by Docker (the company), but in this case by Google and Red Hat, these projects have a preference to use the vendor neutral file name Containerfile for container build specifications in these projects. Buildah now uses Containerfile by default. It would be nice if VSCode would recognize and support Containerfile for syntax highlighting and other integrations.

Since the Containerfile syntax is exactly the same as the Dockerfile syntax, it should just require VSCode to appropriately recognize the file 🙂