# stage 0: build the cos-dkms binary
FROM golang:1.26.2

COPY . /work/
WORKDIR /work/src/cmd/cos_dkms
ARG TARGETOS
ARG TARGETARCH
RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} CGO_ENABLED=0 go build -o cos-dkms main.go

# stage 1: install the binary and the necessary build tools
FROM marketplace.gcr.io/google/ubuntu2404:latest

RUN apt-get -y update \
    && apt-get install -y --no-install-recommends ca-certificates xz-utils make libelf-dev binutils kmod \
    && apt-get clean

COPY --from=0 /work/src/cmd/cos_dkms/cos-dkms /usr/bin/cos-dkms

ENTRYPOINT ["/usr/bin/cos-dkms"]