feat: run qbittorrent-nox with a script

Dockerfile

@@ -6,16 +6,14 @@ RUN apk add --no-cache \
     -X http://dl-cdn.alpinelinux.org/alpine/edge/testing \
     qbittorrent-nox=${VERSION}
 
-ADD --chown=1000:100 qBittorrent.conf /qBittorrent/config/
+ADD --chown=1000:100 root /
-
-RUN chmod -R g+w /qBittorrent
 
 EXPOSE 6881 6881/udp 8080
 
 ENV QBT_WEBUI_PORT=8080
 
-VOLUME [ "/downloads" ]
+VOLUME [ "/config", "/downloads" ]
 
-ENTRYPOINT [ "/usr/bin/qbittorrent-nox" ]
+ENTRYPOINT [ "/run.sh" ]
 
 CMD [ "--profile=/" ]

root/qBittorrent/config

@@ -0,0 +1 @@
+../config

root/run.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+_command=/usr/bin/qbittorrent-nox
+_config_file=/config/qBittorrent.conf
+_config_example=/default/qBittorrent.conf
+
+if [ ! -f "${_config_file}" ]; then
+    install -p -m 664 "${_config_example}" "${_config_file}"
+fi
+
+exec "${_command}" "$@"