Fix bug docker build /cache

Dockerfile.template

@@ -6,21 +6,20 @@ RUN apt-get update && apt-get install -y \
 libblas-dev liblapack-dev liblapacke-dev gfortran \
  && rm -rf /var/lib/apt/lists/*
 
-RUN mkdir /cache/ /senpy-plugins /data/
+RUN mkdir -p /cache/ /senpy-plugins /data/
 
 VOLUME /data/
 
 ENV PIP_CACHE_DIR=/cache/ SENPY_DATA=/data
 
-ONBUILD COPY . /senpy-plugins/
-ONBUILD RUN python -m senpy --only-install -f /senpy-plugins
-ONBUILD WORKDIR /senpy-plugins/
-
-
 WORKDIR /usr/src/app
 COPY test-requirements.txt requirements.txt extra-requirements.txt /usr/src/app/
 RUN pip install --no-cache-dir -r test-requirements.txt -r requirements.txt -r extra-requirements.txt
 COPY . /usr/src/app/
 RUN pip install --no-cache-dir --no-index --no-deps --editable .
 
+ONBUILD COPY . /senpy-plugins/
+ONBUILD RUN python -m senpy --only-install -f /senpy-plugins
+ONBUILD WORKDIR /senpy-plugins/
+
 ENTRYPOINT ["python", "-m", "senpy", "-f", "/senpy-plugins/", "--host", "0.0.0.0"]