Move deps to venv so they are more clearly tracked

deploy/Dockerfile

@@ -7,8 +7,22 @@ RUN yum clean all \
  && yum -y install python3-pip python3-pip-wheel python3-devel git \
  && yum clean all
 
-RUN git clone --depth 1 -b $VERSION https://github.com/DUNE-DAQ/connectivityserver.git
-RUN python3 -m pip install /connectivityserver
+ENV \
+    APP_ROOT=/opt/app        \
+    VENV_PATH=/opt/venv      \
+    HOME=/opt/app            \
+    PYTHONUNBUFFERED=1       \
+    PIP_NO_CACHE_DIR=1       \
+    PATH="/opt/venv/bin:$PATH"
+
+RUN mkdir -p ${APP_ROOT} ${VENV_PATH}
+
+WORKDIR ${APP_ROOT}
+RUN python3 -m venv ${VENV_PATH} \
+ && git clone --depth 1 -b ${VERSION} https://github.com/DUNE-DAQ/connectivityserver.git \
+ && ${VENV_PATH}/bin/pip install --no-cache-dir ./connectivityserver \
+ && rm -rf /root/.cache ${HOME}/.cache ${VENV_PATH}/pip-selfcheck.json
 
 COPY --chmod=755 entrypoint.sh /
+
 ENTRYPOINT ["/entrypoint.sh"]

deploy/connectivityserver.yaml

@@ -39,6 +39,7 @@ spec:
               - key: node-role.kubernetes.io/worker
                 operator: Exists
       automountServiceAccountToken: false
+      hostUsers: false
       containers:
       - image: ghcr.io/dune-daq/connectivityserver:develop
         name: connectionservice