Allow environment variables (#49)

- Allow use of environment variables from Lidarr/Lidarr#4812
- Update Dockerfile

Dockerfile

@@ -18,7 +18,7 @@ FROM scratch
 LABEL org.opencontainers.image.source=https://github.com/TheCaptain989/lidarr-flac2mp3
 LABEL org.opencontainers.image.description="A Docker Mod to Lidarr to automatically convert FLAC files to MP3s, or other format"
 LABEL org.opencontainers.image.licenses=GPL-3.0-only
-LABEL maintainer="TheCaptain989"
+LABEL org.opencontainers.image.authors="TheCaptain989"
 
 # Copy local files
 COPY --from=buildstage /root-layer/ /

root/usr/local/bin/flac2mp3.sh

@@ -644,6 +644,12 @@ elif [ -f "$flac2mp3_config" ]; then
     [[ $flac2mp3_xml_entity = "ApiKey" ]] && flac2mp3_apikey=$flac2mp3_xml_content
   done < $flac2mp3_config
 
+  # Allow use of environment variables from https://github.com/Lidarr/Lidarr/pull/4812
+  [ -n "${LIDARR__SERVER__PORT}" ] && flac2mp3_port="${LIDARR__SERVER__PORT}"
+  [ -n "${LIDARR__SERVER__URLBASE}" ] && flac2mp3_urlbase="${LIDARR__SERVER__URLBASE}"
+  [ -n "${LIDARR__SERVER__BINDADDRESS}" ] && flac2mp3_bindaddress="${LIDARR__SERVER__BINDADDRESS}"
+  [ -n "${LIDARR__AUTH__APIKEY}" ] && flac2mp3_apikey="${LIDARR__AUTH__APIKEY}"
+
   # Check for localhost
   [[ $flac2mp3_bindaddress = "*" ]] && flac2mp3_bindaddress=localhost