add docker publish

Dockerfile

@@ -1,17 +1,4 @@
-FROM python:3.8-alpine as base
-
-ENV PYROOT /pyroot
-ENV PYTHONUSERBASE $PYROOT
-
-
-FROM base as builder
-
-RUN apk add --no-cache \
-    gcc \
-    g++ \
-    musl-dev \
-    python3-dev && \
-    pip3 install pipenv
+FROM registry.wtf-eg.net/ki-backend-builder:1.0.0 as builder
 
 COPY Pipfile* ./
 
@@ -19,7 +6,7 @@ RUN PIP_USER=1 PIP_IGNORE_INSTALLED=1 pipenv install --system --deploy --ignore-
 RUN pip3 uninstall --yes pipenv
 
 
-FROM base
+FROM registry.wtf-eg.net/ki-backend-base:1.0.0 as ki-backend
 
 # Install six explicitly. Otherwise Python complains about it missing.
 RUN pip3 install six