ContextSize as a var

Dockerfile

@@ -1,11 +1,12 @@
 FROM nvidia/cuda:11.8.0-devel-ubuntu22.04
 ARG MODEL
 ARG MODEL_NAME
+ARG CONTEXT_SIZE
 RUN mkdir /opt/koboldcpp
 RUN apt update && apt install git build-essential libopenblas-dev wget python3-pip -y
 RUN git clone https://github.com/lostruins/koboldcpp /opt/koboldcpp
 WORKDIR /opt/koboldcpp
 RUN make LLAMA_OPENBLAS=1 LLAMA_CUBLAS=1 LLAMA_PORTABLE=1
 RUN wget -O model.ggml $MODEL
-CMD /bin/python3 ./koboldcpp.py --model model.ggml --usecublas mmq --gpulayers 99 --multiuser --contextsize 4096 --port 7860 --hordeconfig $MODEL_NAME 1 1
+CMD /bin/python3 ./koboldcpp.py --model model.ggml --usecublas mmq --gpulayers 99 --multiuser --contextsize $CONTEXT_SIZE --port 7860 --hordeconfig $MODEL_NAME 1 1