Goal:

Allow the FROM images in Dockerfiles to be dynamically replaced

Problem:

Classic OpenShift builds allow the last FROM image in a Dockerfile to be replaced. No such capability exists in Shipwright today.

Why is this important?

Image replacement is often used in CI contexts, where a developer-friendly image is replaced with a "hardened" or approved container image.

Dependencies

Stories and Deliverables

• BUILD-203

Estimate: (XS, S, M, L, XL, XXL)

Previous Work:

User Stories:

As a developer using Shipwright to build my container image
I want to be able to dynamically replace the FROM images in my Dockerfiles
So that I can use hardened base images in my builds

Success Criteria:

Open Questions:

See https://docs.google.com/document/d/1thcVR31TElJBXBGmyaYXZ9jRejp5W4-ppNYn4g3_mgk/edit# for a fuller explanation on how to use this template.

Related upstream issue: https://github.com/shipwright-io/build/issues/412