Add week 6 materials

materials/06-failures/seminar/consul-demo/app/Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3.9-slim-buster
+
+WORKDIR /app
+
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+
+COPY . .
+
+CMD ["python", "./main.py"]