Use dev image for development

Dockerfile

@@ -38,6 +38,10 @@ RUN python -m venv /venv \
   && . /venv/bin/activate \
   && pip install --no-cache-dir -r /requirements.txt
 
+ARG CSENTRY_BUILD
+COPY requirements-dev.txt /requirements-dev.txt
+RUN if [ "$CSENTRY_BUILD" = "DEV" ] ; then /venv/bin/pip install --no-cache-dir -r /requirements-dev.txt ; fi
+
 FROM base
 
 RUN groupadd -r -g 1000 csi \

docker-compose.override.yml

-version: '2'
+version: '3'
 services:
   web:
-    build: .
+    build:
+      context: .
+      args:
+        CSENTRY_BUILD: DEV
     environment:
       LOCAL_SETTINGS: /app/settings.cfg
       FLASK_APP: /app/wsgi.py

docker-compose.yml

-version: '2'
+version: '3'
 services:
   web:
     image: registry.esss.lu.se/ics-infrastructure/csentry:master