Add Dockerfile, license, and README Docker instructions

Author: lunaticsm

Dockerfile

@@ -0,0 +1,19 @@
+FROM python:3.12-slim
+
+ENV PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --upgrade pip && pip install -r requirements.txt
+
+COPY . .
+
+EXPOSE 8000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Lunaticsm
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -45,6 +45,17 @@ uvicorn app.main:app --host 0.0.0.0 --port 8000 --workers 2 --proxy-headers
 
 Visit `/` for a minimalist landing page with real-time usage metrics, and `/api-info` for a human-friendly API guide.
 
+### Docker
+
+Build and run with Docker:
+
+```bash
+docker build -t image-uploader .
+docker run --rm -p 8000:8000 --env-file .env -v $(pwd)/uploads:/app/uploads image-uploader
+```
+
+Customize `DB_URL`, `UPLOAD_DIR`, etc. via the `--env-file` or individual `-e` flags.
+
 ## API Overview
 
 | Method | Path | Description |
@@ -78,3 +89,7 @@ The suite bootstraps the FastAPI app against a temporary SQLite database to cove
 - For higher concurrency, point `DB_URL` at a server database and keep the provided SQLite connection args if you stay on SQLite.
 - Mount or back up `UPLOAD_DIR` storage if files need to persist beyond the cleaner retention window.
 - Tune `RATE_LIMIT_PER_MINUTE`, `MAX_FILE_SIZE_BYTES`, and `CACHE_MAX_AGE_SECONDS` to match your traffic patterns.
+
+## License
+
+Released under the [MIT License](LICENSE).