FROM docker.io/alpine:3.22 AS builder
LABEL maintainer="Sebastian Hugentobler <sebastian@vanwa.ch>"

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

RUN mkdir /overlay

ENV S6_OVERLAY_VERSION=v3.2.1.0
ENV S6_HASH_noarch=42e038a9a00fc0fef70bf0bc42f625a9c14f8ecdfe77d4ad93281edf717e10c5
ENV S6_HASH_aarch64=c8fd6b1f0380d399422fc986a1e6799f6a287e2cfa24813ad0b6a4fb4fa755cc
ENV S6_HASH_x86_64=8bcbc2cada58426f976b159dcc4e06cbb1454d5f39252b3bb0c778ccf71c9435

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:3.22

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"]