FROM public.ecr.aws/docker/library/golang:1.24.1-bookworm AS build

ARG upx_version=4.2.4

RUN apt-get update && apt-get install -y --no-install-recommends xz-utils && \
  curl -Ls https://github.com/upx/upx/releases/download/v${upx_version}/upx-${upx_version}-amd64_linux.tar.xz -o - | tar xvJf - -C /tmp && \
  cp /tmp/upx-${upx_version}-amd64_linux/upx /usr/local/bin/ && \
  chmod +x /usr/local/bin/upx && \
  apt-get remove -y xz-utils && \
  rm -rf /var/lib/apt/lists/*

# Set destination for COPY
WORKDIR /app

# Download Go modules
COPY go.mod go.sum ./
RUN --mount=type=cache,target="/go" go mod download -x

COPY . .

# Build
ENV GOCACHE=/root/.cache/go-build
RUN --mount=type=cache,target="/go" --mount=type=cache,target="/root/.cache/go-build" CGO_ENABLED=1 GOOS=linux go build -ldflags '-s -w' -o /flink-kube-operator ./cmd/operator \
  && upx -q -9 /flink-kube-operator

FROM public.ecr.aws/docker/library/busybox:1.37.0 AS final


COPY --from=build /flink-kube-operator /flink-kube-operator

EXPOSE 8083

# Run
CMD ["/flink-kube-operator"]