Upgrading s6 in alpine to 3.0.0.2-2

* Installation method is being updated

Author: komailo

alpinelinux/Dockerfile

@@ -3,13 +3,14 @@ FROM alpine:latest as acmesh_artifacts
 # os related operations below:
 RUN apk -U --no-cache upgrade
 
-RUN apk add --no-cache curl gzip tar 
+RUN apk add --no-cache curl gzip tar util-linux
 
 # Set ARGS
 ARG acmesh_version=master
 ARG acmesh_link="https://github.com/acmesh-official/acme.sh/archive/${acmesh_version}.tar.gz"
 ARG acmesh_artifacts_dir=/opt/acmesh
-ARG s6_overlay_version=2.2.0.3
+ARG s6_artifacts_dir=/opt/s6
+ARG s6_overlay_version=3.1.0.0-1
 
 # Download and place acme.sh inside the container
 RUN mkdir -p "${acmesh_artifacts_dir}" \
@@ -18,18 +19,24 @@ RUN mkdir -p "${acmesh_artifacts_dir}" \
     && rm -rf "/tmp/acmesh-${acmesh_version}.tar.gz" \
     && "${acmesh_artifacts_dir}"/acme.sh --help
 
-# Download and install s6-overlay-builder
-ADD https://github.com/just-containers/s6-overlay/releases/download/v${s6_overlay_version}/s6-overlay-amd64-installer /tmp/
-RUN chmod +x /tmp/s6-overlay-amd64-installer
+# Download and extract s6-overlay-builder
+RUN CPU_ARCH=$(lscpu | grep Architecture | cut --field=2 --delimiter=":" | xargs) \
+    && curl --location --remote-header-name --output "/tmp/s6-overlay-noarch.tar.xz" \
+        https://github.com/just-containers/s6-overlay/releases/download/v${s6_overlay_version}/s6-overlay-noarch.tar.xz \
+    && curl --location --remote-header-name --output "/tmp/s6-overlay-${CPU_ARCH}.tar.xz" \
+        https://github.com/just-containers/s6-overlay/releases/download/v${s6_overlay_version}/s6-overlay-${CPU_ARCH}.tar.xz \
+    && tar -C ${s6_artifacts_dir} -Jxpf /tmp/s6-overlay-noarch.tar.xz \
+    && tar -C ${s6_artifacts_dir} -Jxpf /tmp/s6-overlay-x86_64.tar.xz
 
 FROM alpine:latest
 
 ARG acmesh_artifacts_dir=/opt/acmesh
 ARG auto_upgrade=0
 ARG acme_working_dir=/usr/lib/acmesh
+ARG s6_artifacts_dir=/opt/s6
 
 COPY --from=acmesh_artifacts "$acmesh_artifacts_dir" "$acmesh_artifacts_dir"
-COPY --from=acmesh_artifacts "/tmp/s6-overlay-amd64-installer" "/tmp/s6-overlay-amd64-installer"
+COPY --from=acmesh_artifacts "$s6_artifacts_dir" "/"
 
 # Set runtime variables
 ENV LE_WORKING_DIR="$acme_working_dir"