Files
zegit-forgejo-runner/Dockerfile
agent afed70586a fix: add git-daemon so git-http-backend exists in the image
Alpine splits git-http-backend OUT of the `git` package: git alone ships
git-remote-http/https but not the CGI backend. The runner therefore had git
2.52.0 and no git-http-backend, so zegit's internal/forgeprobe smart-HTTP tests
failed at request time with "fork/exec git-http-backend: no such file or
directory" and reported three FAILURES for a missing tool.

That turned Gitea CI red on every zegit master commit while GitHub stayed
green, for hours, with nobody looking — GitHub is the release oracle, which is
exactly why a red mirror is invisible.

Verified against the real base image, not just alpine:3 — on
code.forgejo.org/forgejo/runner:12.11.1 (Alpine 3.23), `apk add git git-daemon`
puts git-http-backend at /usr/libexec/git-core/git-http-backend, and
`git --exec-path` resolves to that directory, which is the lookup the test
harness performs.
2026-08-20 13:37:22 +02:00

52 lines
2.3 KiB
Docker

# Custom toolchain image for the self-hosted Gitea Actions (Forgejo) runner.
#
# The cluster runs act_runner in *host mode* (docker disabled), so workflow steps
# execute INSIDE this image. The stock forgejo/runner image is minimal and lacks
# node (needed by JS actions: actions/checkout, setup-go, ...), git, make, etc.
# The runner pod is non-root with all caps dropped, so it cannot apt/apk-add at
# runtime -- the tools must be baked in here.
#
# Build multi-arch (cluster is mixed amd64/arm64) and push to the Gitea registry:
#
# docker buildx create --use --name zegit-ci 2>/dev/null || true
# docker login gitea.langenoja.se # username + a Gitea personal access token
# docker buildx build --platform linux/amd64,linux/arm64 \
# -t gitea.langenoja.se/zegit-zoo/zegit-forgejo-runner:12.11.1-ci --push .
#
# Then in flux-config set both containers' image: to the tag above and commit.
# Package visibility is PUBLIC, so the runner namespace pulls without a secret.
FROM code.forgejo.org/forgejo/runner:12.11.1
USER root
# nodejs -> JS actions runtime (actions/checkout, actions/setup-go, ...)
# git -> checkout
# git-daemon -> provides git-http-backend, which Alpine splits OUT of the `git`
# package (git alone ships git-remote-http/https but NOT the CGI
# backend). Without it, internal/forgeprobe's smart-HTTP tests died
# with "fork/exec git-http-backend: no such file or directory" and
# reported three FAILURES for a missing tool — which turned Gitea CI
# red on every zegit master commit while GitHub stayed green, for
# hours, unnoticed.
# bash -> `shell: bash` steps and many action entrypoints
# coreutils-> GNU userland (alpine busybox tools trip up some scripts)
# curl,tar -> setup-go / gitleaks download + extract their own arch-specific binaries
# make -> zegit Makefile targets
# ca-certificates -> trusted roots for HTTPS to gitea/github/goproxy
#
# Go is intentionally NOT baked in: actions/setup-go fetches the pinned version
# per-run (node + tar are present), so the image needs no rebuild on Go bumps.
RUN apk add --no-cache \
nodejs \
git \
git-daemon \
bash \
coreutils \
curl \
tar \
make \
ca-certificates
# Match the runner pod's runAsUser (1000); keep the image non-root by default.
USER 1000