diff --git a/Dockerfile b/Dockerfile
index e69de29..3207ac1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -0,0 +1,23 @@
+# Dockerfile
+FROM python:3.11-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+# (optioneel: system deps toevoegen als later nodig voor DB/libs)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/*
+
+# Python deps
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# App code
+COPY . .
+
+EXPOSE 5000
+
+# Simpel: zelfde als startup.bat, maar dan Linux
+CMD ["python", "app.py"]
diff --git a/app.py b/app.py
index 15b2885..c3b81ec 100644
--- a/app.py
+++ b/app.py
@@ -49,6 +49,7 @@ def refreshAllAuctions(countrycode):
     
 
 if __name__ == "__main__":
-    app.run()  # run our Flask app
+    app.run(host="0.0.0.0", port=5000)  # ipv alleen app.run()
+