Compile translations in Dockerfile

Author: fungc-io

app/Dockerfile

@@ -4,5 +4,9 @@ WORKDIR /app
 COPY ./requirements.txt /app/
 RUN pip install --no-cache-dir -r ./requirements.txt
 COPY . /app
+
+# Compile translations
+RUN pybabel compile -d translations
+
 ENV FLASK_APP=app
 CMD ["flask", "run", "--host=0.0.0.0", "--port=5001"]