Freeze dependencies for the Docker container

admin/Dockerfile

@@ -3,7 +3,7 @@ FROM python:3-alpine
 RUN mkdir -p /app
 WORKDIR /app
 
-COPY requirements.txt .
+COPY requirements-prod.txt requirements.txt
 RUN apk --update add --virtual build-dep openssl-dev libffi-dev python-dev build-base \
 	&& pip install -r requirements.txt \
 	&& apk del build-dep

admin/requirements-prod.txt

@@ -0,0 +1,60 @@
+acme==0.18.1
+alembic==0.9.5
+APScheduler==3.3.1
+asn1crypto==0.22.0
+Babel==2.5.0
+certbot==0.18.1
+certifi==2017.7.27.1
+cffi==1.10.0
+chardet==3.0.4
+click==6.7
+ConfigArgParse==0.12.0
+configobj==5.0.6
+cryptography==2.0.3
+decorator==4.1.2
+docker-py==1.10.6
+docker-pycreds==0.2.1
+dominate==2.3.1
+Flask==0.12.2
+Flask-Babel==0.11.2
+Flask-Bootstrap==3.3.7.1
+Flask-Login==0.4.0
+Flask-Migrate==2.1.1
+Flask-Script==2.0.6
+Flask-SQLAlchemy==2.2
+Flask-WTF==0.14.2
+future==0.16.0
+gunicorn==19.7.1
+idna==2.6
+infinity==1.4
+intervals==0.8.0
+itsdangerous==0.24
+Jinja2==2.9.6
+Mako==1.0.7
+MarkupSafe==1.0
+mock==2.0.0
+parsedatetime==2.4
+passlib==1.7.1
+pbr==3.1.1
+pycparser==2.18
+pyOpenSSL==17.2.0
+pyRFC3339==1.0
+python-dateutil==2.6.1
+python-editor==1.0.3
+pytz==2017.2
+PyYAML==3.12
+requests==2.18.4
+six==1.10.0
+SQLAlchemy==1.1.14
+tabulate==0.7.7
+tzlocal==1.4
+urllib3==1.22
+validators==0.12.0
+visitor==0.1.3
+websocket-client==0.44.0
+Werkzeug==0.12.2
+WTForms==2.1
+WTForms-Components==0.10.3
+zope.component==4.4.0
+zope.event==4.3.0
+zope.interface==4.4.2