FROM docker.io/alpine:3.21 AS builder
LABEL maintainer="Sebastian Hugentobler <sebastian@vanwa.ch>"

RUN apk --no-cache add \
	curl \
	tar \
	xz

RUN mkdir /overlay

ENV S6_OVERLAY_VERSION=v3.2.0.2
ENV S6_HASH_noarch=6dbcde158a3e78b9bb141d7bcb5ccb421e563523babbe2c64470e76f4fd02dae
ENV S6_HASH_aarch64=8b22a2eaca4bf0b27a43d36e65c89d2701738f628d1abd0cea5569619f66f785
ENV S6_HASH_x86_64=59289456ab1761e277bd456a95e737c06b03ede99158beb24f12b165a904f478

RUN curl -L -O https://github.com/just-containers/s6-overlay/releases/download/$S6_OVERLAY_VERSION/s6-overlay-noarch.tar.xz
RUN echo "$S6_HASH_noarch  s6-overlay-noarch.tar.xz" | sha256sum -c - || exit 1
RUN tar xf s6-overlay-noarch.tar.xz -C /overlay --strip 1

RUN curl -L -O https://github.com/just-containers/s6-overlay/releases/download/$S6_OVERLAY_VERSION/s6-overlay-$(arch).tar.xz
RUN eval "echo \"\${S6_HASH_$(arch)}  s6-overlay-$(arch).tar.xz\" | sha256sum -c -" || exit 1
RUN tar xf s6-overlay-$(arch).tar.xz -C /overlay --strip 1


FROM docker.io/alpine:3.21

ENV LANG=en_US.UTF-8
ENV S6_KEEP_ENV=1
ENV PATH="$PATH:/command"
ENV S6_GLOBAL_PATH="$PATH"

COPY --from=builder /overlay /

RUN apk --no-cache add \
	syslog-ng \
	tzdata

ENV TZ=Europe/Zurich

RUN apk --no-cache upgrade --ignore alpine-baselayout

ADD /rootfs /

ENTRYPOINT ["/init"]