adding docker-compose for multi-service setup

Dockerfile → Dockerfile-web

@@ -10,14 +10,8 @@ RUN apt-get update \
 		python3.5-dev \
 		python3-pip \
 		python3-setuptools \
-		rabbitmq-server \
-		redis-server \
 		r-bioc-limma
 RUN pip3 install wheel
 RUN pip3 install -e /app --default-timeout 180
-RUN /etc/init.d/redis-server start
-RUN /etc/init.d/rabbitmq-server start
-RUN celery worker -A fractalis:celery -D -l info
 
-EXPOSE 5000
 CMD ["python3", "fractalis/__init__.py"]

Dockerfile-worker

+FROM buildpack-deps:stretch
+
+WORKDIR /app
+COPY . /app
+
+RUN apt-get update \
+	&& apt-get install -y --no-install-recommends \
+		r-base \
+		python3.5 \
+		python3.5-dev \
+		python3-pip \
+		python3-setuptools \
+		r-bioc-limma
+RUN pip3 install wheel
+RUN pip3 install -e /app --default-timeout 180
+
+CMD ["celery", "worker", "-A", "fractalis:celery"]

docker-compose.yml

+version: '3'
+services:
+    web:
+        build:
+            context: .
+            dockerfile: Dockerfile-web
+        environment:
+            - FRACTALIS_CONFIG=${FRACTALIS_CONFIG}
+            - REDIS_HOST=redis
+            - RABBITMQ_HOST=rabbitmq
+        ports:
+            - '5000:5000'
+    worker:
+        build:
+            context: .
+            dockerfile: Dockerfile-worker
+        environment:
+            - FRACTALIS_CONFIG=${FRACTALIS_CONFIG}
+            - REDIS_HOST=redis
+            - RABBITMQ_HOST=rabbitmq
+    redis:
+        image: 'redis:alpine'
+    rabbitmq:
+        image: 'rabbitmq:alpine'

fractalis/config.py

@@ -8,7 +8,7 @@ from datetime import timedelta
 SECRET_KEY = 'OVERWRITE ME IN PRODUCTION!!!'
 DEBUG = False
 TESTING = False
-REDIS_HOST = '127.0.0.1'
+REDIS_HOST = os.environ.get('REDIS_HOST') or '127.0.0.1'
 REDIS_PORT = '6379'
 SESSION_COOKIE_HTTPONLY = True
 SESSION_COOKIE_SECURE = False
@@ -16,7 +16,8 @@ SESSION_REFRESH_EACH_REQUEST = True
 PERMANENT_SESSION_LIFETIME = timedelta(days=1)
 
 # Celery
-BROKER_URL = 'amqp://'
+RABBITMQ_HOST = os.environ.get('RABBITMQ_HOST') or '127.0.0.1'
+BROKER_URL = 'amqp://guest:guest@{}:5672//'.format(RABBITMQ_HOST)
 CELERY_RESULT_BACKEND = 'redis://{}:{}'.format(REDIS_HOST, REDIS_PORT)
 CELERYD_TASK_SOFT_TIME_LIMIT = 60 * 20
 CELERYD_TASK_TIME_LIMIT = 60 * 30

setup.py

@@ -24,7 +24,8 @@ setup(
         'requests==2.18.4',
         'PyYAML==3.12',
         'pycryptodomex==3.4.7',
-        'rpy2==2.9.0'
+        'rpy2==2.9.0',
+        'flake8==3.5.0'
     ],
     setup_requires=[
         'pytest-runner==2.12.1',