ARG DEBIAN_VERSION=bullseye-slim
# FROM golang:${DEBIAN_VERSION%-*} as confd
# RUN apt-get update \
#  && apt-get install -y \
#     build-essential \
#  && git clone https://github.com/kelseyhightower/confd.git \
#  && cd confd \
#  && make

FROM debian:${DEBIAN_VERSION}
# COPY --from=confd /go/confd/bin/confd /usr/local/bin/confd
ADD https://github.com/kelseyhightower/confd/releases/download/v0.16.0/confd-0.16.0-linux-${TARGETARCH} /usr/local/bin/confd
RUN mkdir -p /start.d \
  && printf '#!/bin/bash\nset -e\n/usr/local/bin/confd -onetime -backend env\nrun-parts -v /start.d\nexec ${@}\n' > /entrypoint.sh \
  && mkdir -p /etc/confd/conf.d /etc/confd/templates \
  && chmod +x /usr/local/bin/confd /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]