upgrade docker file

HISTORY.rst

@@ -1,6 +1,10 @@
 HISTORY
 -------
 
+2.2.3 (2020-08-17)
+++++++++++++++++++
+- upgraded Dockerfile to use debian-stretch
+
 2.2.2 (2020-08-16)
 ++++++++++++++++++
 - fixed usage of django-suit for admin interface.

run/docker/app/Dockerfile

@@ -1,11 +1,11 @@
-FROM python:3.6-jessie
+FROM python:3.6-stretch
 ENV PYTHONUNBUFFERED 1
 
 RUN apt-get update
 RUN apt-get install -y curl
 RUN apt-get install -y shellcheck
-RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ jessie-pgdg main" >> /etc/apt/sources.list
-RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main" | tee /etc/apt/sources.list.d/pgdg.list
+RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main" >> /etc/apt/sources.list
+RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main 12" | tee /etc/apt/sources.list.d/pgdg.list
 RUN curl -L https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
 RUN apt-get update
 RUN apt-get install -y gcc postgresql-client-12 libpq-dev musl-dev bash postgresql-12

run/requirements.txt

@@ -4,6 +4,7 @@ Pillow==6.2.2
 Sphinx==1.4.8
 Unipath==1.1
 amas==0.2
+numpy
 biopython==1.68
 coverage>=3.7.1
 coveralls>=0.5