remove s6-overlay

Dockerfile

@@ -1,6 +1,6 @@
 ### Builder image
 # using ubuntu LTS version
-FROM lsiobase/ubuntu:jammy AS builder-image
+FROM ubuntu:latest AS builder-image
 
 # avoid stuck build due to user prompt
 ARG DEBIAN_FRONTEND=noninteractive
@@ -11,24 +11,23 @@ RUN apt-get update && apt-get install --no-install-recommends -y python3.11 pyth
 
 # create and activate virtual environment
 # using final folder name to avoid path issues with packages
-RUN python3.11 -m venv /home/abc/venv
-ENV PATH="/home/abc/venv/bin:$PATH"
+RUN python3.11 -m venv /root/venv
+ENV PATH="/root/venv/bin:$PATH"
 
 # install requirements
 COPY requirements.txt .
 RUN pip3 install --no-cache-dir wheel
 RUN pip3 install --no-cache-dir -r requirements.txt
 
 ### Runner image
-FROM lsiobase/ubuntu:jammy AS runner-image
+FROM ubuntu:latest AS runner-image
 
 # install python
 RUN apt-get update && apt-get install --no-install-recommends -y python3.11 python3-venv && \
 	apt-get clean && rm -rf /var/lib/apt/lists/*
 
-# use unprivileged user and virtual environment
-RUN chsh -s /bin/bash abc
-COPY --from=builder-image /home/abc/venv /home/abc/venv
+# use virtual environment
+COPY --from=builder-image /root/venv /root/venv
 
 # create directory for runtime and switch to user
 RUN mkdir -p /run
@@ -43,8 +42,8 @@ EXPOSE 443/tcp
 ENV PYTHONUNBUFFERED=1
 
 # activate virtual environment
-ENV VIRTUAL_ENV=/home/abc/venv
-ENV PATH="/home/abc/venv/bin:$PATH"
+ENV VIRTUAL_ENV=/root/venv
+ENV PATH="/root/venv/bin:$PATH"
 
 # run server when container starts
 CMD [ "python3", "./mediator.py", "--log-level", "1" ]