Dockerfile

FROM --platform=${BUILDPLATFORM} golang:1.25@sha256:a22b2e6c5e753345b9759fba9e5c1731ebe28af506745e98f406cc85d50c828e AS go

FROM go  AS frontend-build
WORKDIR /build
COPY . .
ENV CGO_ENABLED=0
ARG TARGETARCH TARGETOS GOFLAGS=-trimpath
ENV GOOS=${TARGETOS} GOARCH=${TARGETARCH} GOFLAGS=${GOFLAGS}
RUN \
    --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/root/.cache/go-build \
    go build -o /frontend ./cmd/frontend

FROM scratch AS frontend
COPY --from=frontend-build /frontend /frontend
LABEL moby.buildkit.frontend.network.none="true"
LABEL moby.buildkit.frontend.caps="moby.buildkit.frontend.inputs,moby.buildkit.frontend.subrequests,moby.buildkit.frontend.contexts"
ENTRYPOINT ["/frontend"]