Ubuntu OCI container images

The Open Container Initiative (OCI) establishes standards for constructing container images that can be reliably installed across a variety of compliant host environments.

Ubuntu’s LTS Docker Image Portfolio provides OCI-compliant images that receive stable security updates and predictable software updates, ensuring consistency in both maintenance schedule and operational interfaces for the underlying foundation your software builds on.

Moreover, all Ubuntu-based containers (like chiselled container images)

leverage the Ubuntu container image as their starting point, and so also benefit from its support and security commitments.

The Ubuntu container image is built from a minimal rootfs tarball. This tarball already contains the modifications needed to make the rootfs suitable for building OCI/Docker container images. The Ubuntu OCI rootfs tarballs are published in OCI partner images.