Docker improovements

.travis.yml

@@ -3,8 +3,24 @@ sudo: required
 services:
   - docker
 
+matrix:
+  fast_finish: true
+  include:
+    - name: "python-3.8"
+      env: BASE_IMAGE=python:3.8-alpine
+    - name: "python-3.7"
+      env: BASE_IMAGE=python:3.7-alpine
+    - name: "python-3.6"
+      env: BASE_IMAGE=python:3.6-alpine
+    - name: "python-3.5"
+      env: BASE_IMAGE=python:3.5-alpine
+    - name: "python-2.7"
+      env: BASE_IMAGE=python:2.7-alpine
+  allow_failures:
+    - env: BASE_IMAGE=python:2.7-alpine
+
 before_install:
-  - docker build -t ritsi/mapa-tasas .
+  - docker build -t ritsi/mapa-tasas --build-arg BASE_IMAGE=$BASE_IMAGE .
 
 script:
   - docker run -it -p 8000:8000 ritsi/mapa-tasas python3 manage.py test

Dockerfile

@@ -1,13 +1,14 @@
 #FROM mhart/alpine-node
-FROM python:3.6-alpine
+ARG BASE_IMAGE=python:3.6-alpine
+FROM $BASE_IMAGE
 
 ENV HOME /root
 ENV SECRET_KEY no-secret-key #Set a secure Django secret key for production!
 ENV LIBRARY_PATH=/lib:/usr/lib
 
 WORKDIR $HOME
 
-RUN apk add --update \
+RUN apk add --no-cache --update \
 	mariadb-connector-c-dev \
             build-base \
 	mariadb-dev \
@@ -16,16 +17,10 @@ RUN apk add --update \
 	    gettext \
 	    jpeg-dev zlib-dev \
  && npm install -g bower topojson ogr2ogr \
- && pip3 install --upgrade pip \
- && rm /var/cache/apk/*
+ && pip3 install --upgrade pip
 
-COPY requirements.txt $HOME/
+COPY bower.json .bowerrc requirements.txt $HOME/
 RUN pip3 install -r requirements.txt
-RUN pip3 install mysqlclient
-RUN pip3 install whitenoise
-RUN pip3 install dj-static
-
-COPY bower.json .bowerrc $HOME/
 RUN bower install --allow-root
 
 ## COPY PROJECT

requirements.txt

@@ -9,3 +9,6 @@ coverage==4.5.1
 django-nose==1.4.6
 nose==1.3.7
 django-cookie-law>=0.3.0
+mysqlclient==1.4.4
+whitenoise==4.1.4
+dj-static==0.0.6