Files
dtf-system/local/Dockerfile.web
Cauê Faleiros 4c9fa2436e build: pin base image digests and clear every fixable image finding
The production images built on mutable tags with --pull, so the same commit
could produce different bases, and neither Dockerfile upgraded its OS packages
even though the local ones did. The published API image carried 56 HIGH and 3
CRITICAL findings, 15 of them with an upstream fix available.

Pin both bases by digest and upgrade OS packages in the production images. That
removes all 3 CRITICAL and 13 of the 15 fixable findings. The remaining two,
msgpack and setuptools, come from a third-party SBOM; neither package is
importable or listed by pip in the built image, which I confirmed rather than
taking the previous report's word for it.

The web image could not be fixed this way: the official 1.28 line pins
nginx=1.28.3-r1 in /etc/apk/world, so apk upgrade leaves five HIGH findings in
place even though Alpine ships 1.28.3-r7. Moving to nginx:alpine (1.31.6)
clears them completely; 1.29-alpine scans worse, at 37 HIGH. Same uid 101 and
the same template entrypoint, and the local images now use the same pinned
bases so the integration suite exercises what ships. Full suite passes on
nginx 1.31.6, including the browser end-to-end.

With both images at zero CRITICAL, the image scan now blocks on CRITICAL and
reports HIGH, instead of reporting everything. PYTHON_BASE_IMAGE and
NGINX_BASE_IMAGE are wired through to the builds so a base can move forward
without editing the repository, which is what PORTAINER.md already promised.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-21 11:58:32 -03:00

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Docker

FROM python:3.12-slim@sha256:2f17fc044b579bab302c2e8054d3a686e2cb9a83de48e70534b94cd8ebbe06a9 AS policy
WORKDIR /build
COPY dtf-site.html /build/dtf-site.html
COPY local /build/local
RUN python local/compile_web.py
# Same pinned base as deploy/Dockerfile.web.
FROM nginx:alpine@sha256:62ff2089abf5a9ed33bd232895bef5e22f7bb4b200675cec49a5ebc48e3d4ac8
RUN apk upgrade --no-cache
ENV WEB_INDEX=index.html
COPY --from=policy /build/default.conf.template /etc/nginx/templates/default.conf.template
ENV S3_PUBLIC_ENDPOINT=http://localhost:9000
COPY dtf-site.html /usr/share/nginx/html/index.html
COPY local/static/ /usr/share/nginx/html/