prepare action migration

Containerfile

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+FROM docker.io/alpine:3.19 AS builder
+LABEL maintainer="Sebastian Hugentobler <sebastian@vanwa.ch>"
+
+ARG TARGET_ARCH=x86_64
+
+ENV S6_OVERLAY_VERSION=v3.1.6.2
+
+RUN apk --no-cache add \
+	git \
+	make \
+	binutils \
+	tar \
+	xz
+
+RUN git clone https://github.com/just-containers/s6-overlay.git /src
+WORKDIR /src
+RUN git checkout "$S6_OVERLAY_VERSION"
+
+RUN make ARCH=$TARGET_ARCH-linux-musl -j4
+RUN mv /src/output/rootfs-overlay-${TARGET_ARCH}-linux-musl /src/output/rootfs-overlay-arch
+
+
+FROM docker.io/alpine:3.19
+
+ENV LANG=en_US.UTF-8
+ENV S6_KEEP_ENV=1
+ENV PATH="$PATH:/command"
+ENV S6_GLOBAL_PATH="$PATH"
+
+COPY --from=builder /src/output/rootfs-overlay-noarch /
+COPY --from=builder /src/output/rootfs-overlay-arch /
+
+RUN apk --no-cache add \
+	syslog-ng \
+	tzdata
+
+ENV TZ=Europe/Zurich
+
+RUN apk --no-cache upgrade --ignore alpine-baselayout
+
+ADD /rootfs /
+
+ENTRYPOINT ["/init"]