Josh Knapp 4e0c22e9c9 ci: mirror golang:1.25 alongside python:3.12-slim, switch coraza-spoa FROM ...

Cloudflare's bot-management incident on 2026-05-12 took out docker.io blob
pulls twice in one day — first for python:3.12-slim (mirrored in 5a2ebf9),
then again for golang:1.25 when the PR 1 coraza-spoa build hit the same
R2-via-Cloudflare failure on the build stage's base image.

Restructure .gitea/workflows/mirror-base-image.yaml into a matrix that
iterates over a list of (src, dst_path, tag) entries. Adding a new base
image is now a one-line matrix entry. fail-fast: false so one image's
upstream being down doesn't block refreshing the others.

Switch coraza-spoa/Dockerfile's build stage FROM to the in-house golang
mirror. Runtime FROM (gcr.io/distroless/static-debian12:nonroot) stays
on upstream — distroless is on Google's registry, separate from Docker
Hub's Cloudflare R2 setup, and didn't fail during today's incident.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-12 16:40:42 -07:00

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