Initial commit: YouTube Sync Docker container

- Alpine-based Docker image with yt-dlp
- Configurable channel sync script
- Unraid template for Community Applications
- Automatic scheduling via cron
- Emby/Plex/Jellyfin compatible output structure

Dockerfile

@@ -0,0 +1,37 @@
+FROM alpine:3.19
+
+# Install dependencies
+RUN apk add --no-cache \
+    python3 \
+    py3-pip \
+    ffmpeg \
+    bash \
+    curl \
+    tzdata \
+    dcron \
+    && pip3 install --no-cache-dir yt-dlp --break-system-packages
+
+# Create directories
+RUN mkdir -p /downloads /config /app
+
+# Copy scripts
+COPY sync.sh /app/sync.sh
+COPY entrypoint.sh /app/entrypoint.sh
+RUN chmod +x /app/sync.sh /app/entrypoint.sh
+
+# Set working directory
+WORKDIR /app
+
+# Environment defaults
+ENV DOWNLOAD_DIR=/downloads \
+    CONFIG_DIR=/config \
+    SYNC_SCHEDULE="0 2 * * *" \
+    MAX_QUALITY=1080 \
+    SLEEP_INTERVAL=2 \
+    TZ=America/Phoenix
+
+# Expose volume mount points
+VOLUME ["/downloads", "/config"]
+
+# Run entrypoint
+ENTRYPOINT ["/app/entrypoint.sh"]