Added docker functionality.

docker-compose.yml

@@ -0,0 +1,33 @@
+services:
+  swiper:
+    build: .
+    container_name: swiper
+    # --- Environment overrides ------------------------------------------------
+    # Set the port and the internal image directories list. The example below
+    # assumes two folders mounted at /media/Portrait and /media/Landscape inside
+    # the container. Adjust IMAGE_DIRS (colon-separated) and the volume mounts
+    # to reflect your own paths.
+    environment:
+      - PORT=8888
+      - IMAGE_DIRS=/media/Portrait:/media/Landscape
+      # Directory inside the container where the SQLite DB will live
+      - DATA_DIR=/data
+    # -------------------------------------------------------------------------
+
+    # Map host port -> container port
+    ports:
+      - "8888:8888"
+
+    # -------------------------------------------------------------------------
+    # Volumes
+    #   • Mount the host image folders into /media/<name> inside the container
+    #   • Optionally mount a customised config.py to override defaults at build
+    # -------------------------------------------------------------------------
+    volumes:
+      - /mnt/secret-items/sd-outputs/Sorted/Images/Portrait:/media/Portrait:ro
+      - /mnt/secret-items/sd-outputs/Sorted/Images/Landscape:/media/Landscape:ro
+      # Host data directory → container /data (holds image_selections.db)
+      - ./data:/data
+      # Uncomment the line below if you maintain a custom config.py alongside
+      # the compose file and want to override the image copy at runtime.
+      - ./config.py:/app/config.py:ro