Add Dockerfile to controller

controller/Dockerfile

@@ -0,0 +1,51 @@
+FROM python:3.11-slim
+
+ENV PYTHONUNBUFFERED=1
+
+ENV DEPS libreadline-dev \
+    valgrind \
+    libtool-bin \
+    libprotobuf-dev \
+    protobuf-compiler \
+    protobuf-compiler-grpc \
+    libgrpc-dev \
+    libgrpc++-dev \
+    git \
+    make \
+    automake \
+    build-essential \
+    g++ \
+    libtool \ 
+    pkg-config \
+    ca-certificates \
+    libboost-dev \
+    libboost-system-dev \
+    libboost-thread-dev
+
+WORKDIR /app
+
+COPY controller.py /app/
+COPY node_manager.py /app/
+COPY switch_controller.py /app/
+COPY p4runtime_lib /app/p4runtime_lib
+COPY requirements.txt /app/
+
+RUN pip install --no-cache-dir -r requirements.txt && \
+    apt-get update && \
+    apt-get install -y --no-install-recommends $DEPS && \
+    git clone https://github.com/p4lang/PI.git && \
+    cd PI && \
+    git checkout 05cb92564af77ae4826565cbde84e3fd4960c6bd && \
+    git submodule update --init --recursive && \
+    ./autogen.sh && \
+    ./configure --with-proto --without-internal-rpc --without-cli --without-bmv2 && \
+    make -j2 && \
+    make install-strip && \
+    ldconfig && \
+    apt-get purge -y $DEPS && \
+    apt-get autoremove --purge -y && \
+    apt-get clean && \
+    rm -rf /app/PI /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+
+ENTRYPOINT ["python3", "controller.py"]