first changes to docker

QPKG/shared/docker/Dockerfile

@@ -0,0 +1,30 @@
+FROM debian:12-slim
+
+RUN apt-get update \
+        && apt-get -y upgrade \
+        && apt-get -y install bash curl bzip2 ffmpeg cifs-utils alsa-utils libicu72
+
+ENV ROON_SERVER_PKG RoonServer_linuxx64.tar.bz2
+ENV ROON_SERVER_URL https://download.roonlabs.net/builds/${ROON_SERVER_PKG}
+ENV ROON_DATAROOT /data
+ENV ROON_ID_DIR /data
+
+ENV ROON_DATAROOT=/Roon/data
+ENV ROON_ID_DIR=/Roon/data
+
+COPY entrypoint.sh /entrypoint.sh
+
+# Informational only — requires --net=host for multicast discovery
+EXPOSE 9003/udp 9100-9200/tcp 9200-9250/tcp 9330-9339/tcp 55000/tcp
+
+# Healthcheck uses /proc directly instead of pgrep to avoid procps dependency
+HEALTHCHECK --interval=30s --timeout=10s --start-period=120s --retries=3 \
+    CMD grep -ql '[R]oonServer.dll' /proc/[0-9]*/cmdline 2>/dev/null || exit 1
+
+
+STOPSIGNAL SIGTERM
+
+# entrypoint.sh downloads RoonServer on first run (to /Roon/app), then
+# exec's into Server/RoonServer — the stock bash launcher that handles
+# .NET runtime discovery, ulimit, self-update swap, and restart (exit 122).
+ENTRYPOINT ["/entrypoint.sh"]