Added constants that use environment variables

happy_ripper.py

@@ -15,9 +15,11 @@ import mutagen
 from mutagen.easyid3 import EasyID3
 from mutagen.mp3 import MP3
 from mutagen.id3 import ID3, APIC
-from flask import Flask, render_template, request, jsonify, send_file
+from flask import Flask, render_template, request, jsonify
 
-MUSIC_FOLDER = "Music"
+MUSIC_FOLDER = os.environ["HAPPY_RIPPER_MUSIC_DIR"]
+ACCESS_URL = os.environ["HAPPY_RIPPER_ACCESS_URL"]
+PORT = int(os.environ["HAPPY_RIPPER_MUSIC_PORT"])
 
 
 @dataclass
@@ -359,4 +361,4 @@ if __name__ == "__main__":
 
         return jsonify(data)
 
-    app.run()
+    app.run(host="0.0.0.0", port=PORT)