Add example Dockerfile

utilities/_Dockerfile

+## This is an example Dokerfile you can change to make submissions on aicrowd
+## To use it, place it in the base of the repo, and remove the underscore (_) from the filename
+
+FROM nvidia/cuda:11.7.0-cudnn8-runtime-ubuntu18.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+COPY apt.txt /tmp/apt.txt
+RUN apt -qq update && apt -qq install -y --no-install-recommends `cat /tmp/apt.txt` \
+ && rm -rf /var/cache/*
+RUN apt install -y locales wget
+
+# Unicode support:
+RUN locale-gen en_US.UTF-8
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
+# Create user home directory - This is needed for aicrowd submissions
+ENV USER_NAME aicrowd 
+ENV HOME_DIR /home/$USER_NAME
+
+# Replace HOST_UID/HOST_GUID with your user / group id
+ENV HOST_UID 1001
+ENV HOST_GID 1001
+
+# Use bash as default shell, rather than sh
+ENV SHELL /bin/bash
+
+# Set up user
+RUN adduser --disabled-password \
+    --gecos "Default user" \
+    --uid ${HOST_UID} \
+    ${USER_NAME}
+
+USER ${USER_NAME}
+WORKDIR ${HOME_DIR}
+
+ENV CONDA_DIR ${HOME_DIR}/.conda
+
+
+RUN wget -nv -O miniconda.sh https://repo.anaconda.com/miniconda/Miniconda3-py38_22.11.1-1-Linux-x86_64.sh \
+ && bash miniconda.sh -b -p ${CONDA_DIR} \
+ && . ${CONDA_DIR}/etc/profile.d/conda.sh \
+ && conda clean -y -a \
+ && rm -rf miniconda.sh
+
+ENV PATH ${CONDA_DIR}/bin:${PATH}
+
+RUN conda install cmake -y && conda clean -y -a
+COPY --chown=1001:1001 requirements.txt ${HOME_DIR}/requirements.txt
+RUN pip install -r requirements.txt --no-cache-dir
+
+COPY --chown=1001:1001 . ${HOME_DIR}
+
+## Add your custom commands below