Move nginx images to 1.31 on Debian trixie - #814
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The nginx:1.27-bookworm base was last rebuilt 2025-06-11 and carries over a year of unpatched Debian CVEs. nginx publishes no bookworm variant past 1.29, so staying current requires trixie. Verified both images build and serve: demo returns 200 for the static root; webdav handles PUT, GET, MKCOL, DELETE, and autoindex. The http_dav_module and the nginx user are present on the new base.
This was referenced Jul 27, 2026
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Supersedes the twenty open Snyk nginx PRs (#777, #784–#787, #789, #790, #793, #795, #798–#801, #803–#807, #809, #810).
Why the Snyk PRs cannot simply be merged
Every one of those PRs targets
docker/demo/Dockerfileonly, and every one proposes a tag that is itself now stale:nginx:1.27-bookworm(current base)nginx:1.29-bookworm(newest Snyk proposal, #809/#810)nginx:1.31-trixie(this PR)nginx publishes no
bookwormvariant past 1.29 —1.30-bookwormand1.31-bookwormdo not exist. Staying current therefore requires moving to trixie, which no Snyk PR does. Merging any of them would leave the base a year behind and re-open the same alert on the next scan.Snyk also never opened a PR against
docker/webdav/Dockerfile, which runs the same stale nginx base and is published asquay.io/shieldproject/webdav. This PR updates both.Verification
Built both images from this branch and exercised them:
GET /returns 200 with the static root served from/www;/initcopieshtdocsas before.PUT201,GET200 with matching payload,MKCOL201,DELETE204, autoindex lists uploaded files.nginx/1.31.3; neither logs anyemerg,crit, orerror.Confirmed the new base retains what these images depend on:
--with-http_dav_moduleis compiled in, thenginxuser exists (uid 101) forchown -R nginx /var/webdav, andbashis present for/initand/webdav.Note on tag strategy
Pinning a floating minor (
1.31) is what produced this backlog:1.27stopped receiving builds and Snyk opened a PR per nginx release for over a year.nginx:mainline-trixieornginx:stable-trixiewould track upstream without going stale. Left as-is here to keep the change to the version bump; worth deciding separately.