Migrate baseimage to debian from ubuntu

Dockerfile

@@ -1,4 +1,4 @@
-FROM avatao/ubuntu:16.04
+FROM avatao/debian:buster
 
 RUN curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -                                     &&\
     curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -                             &&\
@@ -10,30 +10,12 @@ RUN curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
         supervisor                             \
         libzmq5                                \
         nginx                                  \
-        gettext-base                           \
-        libbz2-dev                             \
-        libreadline-dev                        \
-        libsqlite3-dev                                                                                 &&\
+        gettext-base                                                                                   &&\
     rm -rf /var/lib/apt/lists/*
 
-USER ${AVATAO_USER}
-WORKDIR /home/${AVATAO_USER}
-COPY .pyenvrc .
 COPY requirements.txt /tmp
-ARG PYTHON_VERSION="3.6.4"
-ARG PYENV_INSTALLER_URL="https://raw.githubusercontent.com/pyenv/pyenv-installer/78cfd4d/bin/pyenv-installer"
-ARG PYENV_INSTALLER_HASH=9509348b828f0564358fff456f7f693dd9ace351dc3f240854d7685ad8a8e1dd
-RUN curl -fSL -o pyenv-installer ${PYENV_INSTALLER_URL}              &&\
-    echo "${PYENV_INSTALLER_HASH} *pyenv-installer" | sha256sum -c - &&\
-    bash pyenv-installer                                             &&\
-    rm pyenv-installer                                               &&\
-    echo "source $HOME/.pyenvrc" >> .bashrc                          &&\
-    . $HOME/.pyenvrc                                                 &&\
-    pyenv install ${PYTHON_VERSION}                                  &&\
-    pyenv global ${PYTHON_VERSION}                                   &&\
-    pip install -r /tmp/requirements.txt
+RUN pip3 install -r /tmp/requirements.txt
 
-USER root
 ENV TFW_PUBLIC_PORT=8888          \
     TFW_WEB_PORT=4242             \
     TFW_LOGIN_APP_PORT=6666       \
@@ -87,4 +69,4 @@ ONBUILD RUN test -z "${NOFRONTEND}" && cd /data && yarn install --frozen-lockfil
 ONBUILD RUN test -z "${NOFRONTEND}" && cd /data && yarn build --no-progress || :
 ONBUILD RUN test -z "${NOFRONTEND}" && mv /data/dist ${TFW_FRONTEND_DIR} && rm -rf /data || :
 
-CMD . "$HOME/.pyenvrc" && exec supervisord --nodaemon
+CMD exec supervisord --nodaemon

supervisor/supervisord.conf

@@ -20,7 +20,7 @@ autorestart=true
 
 [program:app]
 directory=%(ENV_TFW_APP_DIR)s
-command=env python app.py
+command=python3 app.py
 
 [include]
 files=%(ENV_TFW_SUPERVISORD_COMPONENTS)s/*.conf