Update Dockerfiles

Signed-off-by: Christian König <ckoenig@posteo.de>

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.12 AS builder
+FROM alpine:3.17 AS builder
 
 # Check required arguments exist. These will be provided by the Github Action
 # Workflow and are required to ensure the correct branches are being used.
@@ -26,7 +26,6 @@ RUN apk -U add \
         ffmpeg-dev \
         xxd \
         libressl-dev \
-        openssl-dev \
         libplist-dev
 
 ##### ALAC #####
@@ -66,7 +65,7 @@ WORKDIR /
 ##### SPS END #####
 
 # Shairport Sync Runtime System
-FROM crazymax/alpine-s6:3.12-3.1.1.2
+FROM crazymax/alpine-s6:3.17-3.1.1.2
 
 RUN apk -U add \
         alsa-lib \
@@ -83,6 +82,7 @@ RUN apk -U add \
         ffmpeg \
         libsodium \
         libgcrypt \
+        libressl3.6-libcrypto \
         libplist \
         mandoc \
         man-pages \
@@ -100,7 +100,7 @@ COPY --from=builder /shairport-sync/build/install/etc/dbus-1/system.d/shairport-
 COPY --from=builder /shairport-sync/build/install/etc/dbus-1/system.d/shairport-sync-mpris.conf /etc/dbus-1/system.d/
 
 COPY ./docker/etc/s6-overlay/s6-rc.d /etc/s6-overlay/s6-rc.d
-RUN chmod +x /etc/s6-overlay/s6-rc.d/startup/script.sh
+RUN chmod +x /etc/s6-overlay/s6-rc.d/01-startup/script.sh
 
 # Create non-root user for running the container -- running as the user 'shairport-sync' also allows
 # Shairport Sync to provide the D-Bus and MPRIS interfaces within the container
@@ -114,4 +114,4 @@ RUN addgroup -g 29 docker_audio && addgroup shairport-sync docker_audio && addgr
 # Remove anything we don't need.
 RUN rm -rf /lib/apk/db/*
 
-ENTRYPOINT [ "/init", "/usr/local/bin/shairport-sync" ]
+ENTRYPOINT [ "/init" ]