Removed dev packages from final image

Dockerfile

@@ -9,28 +9,29 @@ ENV PYTHONDONTWRITEBYTECODE 1
 
 ENV DEBIAN_FRONTEND noninteractive
 
-ENV BUILD_PACKAGES apt-file libpq-dev graphviz-dev graphviz build-essential git pkg-config \
+ENV BUILD_PACKAGES apt-utils apt-file libpq-dev graphviz-dev build-essential git pkg-config \
                    python3-dev libxml2-dev libjpeg-dev libssl-dev libffi-dev libxslt1-dev \
-                   python3-lxml python3-magic postgresql-client libcairo2-dev \
-                   python3-psycopg2 poppler-utils vim curl jq vim bash software-properties-common \
-                   software-properties-common python3-setuptools python3-venv nginx tzdata nodejs
+                   libcairo2-dev software-properties-common python3-setuptools python3-pip
 
+ENV RUN_PACKAGES graphviz python3-lxml python3-magic postgresql-client python3-psycopg2 \
+                 poppler-utils curl jq bash python3-venv tzdata nodejs \
+                 fontconfig ttf-dejavu python nginx
+ 
 RUN mkdir -p /var/interlegis/sapl
 
 WORKDIR /var/interlegis/sapl/
 
 ADD . /var/interlegis/sapl/
 
-RUN apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends apt-utils && \
-    mkdir -p /usr/share/man/man1 && mkdir -p /usr/share/man/man7 && \
-    apt-get install -y fontconfig ttf-dejavu && fc-cache -fv && \
-    apt-get install -y --no-install-recommends $BUILD_PACKAGES && \
-    apt-get install -y python python3-pip && \
-    pip3 install --upgrade pip setuptools && \
+RUN apt-get update && \
+    apt-get upgrade -y && \
+    apt-get install -y --no-install-recommends $BUILD_PACKAGES $RUN_PACKAGES && \
+    fc-cache -fv && \
+    pip3 install --no-cache-dir --upgrade pip setuptools && \
     rm -f /etc/nginx/conf.d/* && \
-    pip install -r /var/interlegis/sapl/requirements/dev-requirements.txt --upgrade setuptools && \
-    rm -r /root/.cache && \
-    apt-get autoremove -y && apt-get clean && rm -rf /var/lib/apt/lists/*
+    pip install --no-cache-dir -r /var/interlegis/sapl/requirements/dev-requirements.txt --upgrade setuptools && \
+    SUDO_FORCE_REMOVE=yes apt-get purge -y --auto-remove $BUILD_PACKAGES && \
+    apt-get autoremove && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 COPY start.sh /var/interlegis/sapl/
 COPY config/nginx/sapl.conf /etc/nginx/conf.d