FROM golang:1.25@sha256:31c1e53dfc1cc2d269deec9c83f58729fa3c53dc9a576f6426109d1e319e9e9a

ENV GOOS=linux
ENV GOARCH=arm
ENV CGO_ENABLED=1
ENV CC=arm-linux-gnueabihf-gcc
ENV PATH="/go/bin/${GOOS}_${GOARCH}:${PATH}"
ENV PKG_CONFIG_PATH=/usr/lib/arm-linux-gnueabihf/pkgconfig

RUN dpkg --add-architecture armhf \
    && apt update \
    && apt install -y --no-install-recommends \
        gcc-arm-linux-gnueabihf \
        libc6-dev-armhf-cross \
        pkg-config \
    && rm -rf /var/lib/apt/lists/*

COPY . /src/workdir

WORKDIR /src/workdir

RUN go build ./...