WORKDIR /usr/src/app
+## install curl & ping to help debug
+RUN apt update
+RUN apt install curl -y
+RUN apt-get install iputils-ping -y
+
RUN pip install -r requirements.txt
-CMD [ "python3", "main.py" ]
+ARG user=nonrtric
+ARG group=nonrtric
+
+RUN groupadd $user && \
+ useradd -r -g $group $user
+RUN chown -R $user:$group /usr/src/app/
+
+USER ${user}
+
+CMD [ "python3", "-u", "main.py" ]