# Fallback only — used when the repo has no Dockerfile of its own (see
# buildDocker.groovy). Simplified from the real go-Dockerfile: no SSH-keyed
# private module auth (github.com/Homelab/*), no per-module builds, no
# kafka-specific CGO toggle. Assumes a standard single-binary repo layout
# (main package at the repo root) — a repo with a different structure
# should just bring its own Dockerfile, same as demo-go-app does.
# Both stages pulled from Harbor's base-images project (mirrored from
# Docker Hub via devops-base-images), not Docker Hub directly — see that
# repo's README for the one-off mirror setup and why (build-time
# dependency on an external registry, plus wanting to pick the leanest
# variant of each deliberately rather than accept whatever a public tag
# defaults to). Only versions actually mirrored there resolve — passing
# a dockerBuildVersion whose tag isn't in devops-base-images/images.txt
# yet needs that added and re-mirrored first, unlike pulling straight
# from Docker Hub where any tag "just worked".
FROM harbor.192.168.1.7.nip.io/base-images/golang:${version}-alpine AS build
WORKDIR /src
COPY go.mod go.sum* ./
RUN go mod download 2>/dev/null || true
COPY . .
RUN CGO_ENABLED=0 go build -o /app .

FROM harbor.192.168.1.7.nip.io/base-images/alpine:3.20
COPY --from=build /app /app
EXPOSE 8080
ENTRYPOINT ["/app"]