Long story short
I would like to run aiohttp backend services on a nginx webserver. Both should be running in docker containers. Furthermore my frontend angular application should access my backend services.
Expected behaviour
I expect that the nginx webserver could connect to my backend system aiohttp, running in docker.
Actual behaviour
I am always getting an error in the docker logs while I am trying to call a GET request on my aiohttp backend service.
nginx_1 | 2018/09/29 13:48:03 [error] 6#6: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 172.19.0.1, server: , request: "GET /toolservice/volatility?command=pslist HTTP/1.1", upstream: "http://172.19.0.2:80/toolservice/volatility?command=pslist", host: "localhost" nginx_1 | 172.19.0.1 - - [29/Sep/2018:13:48:03 +0000] "GET /toolservice/volatility?command=pslist HTTP/1.1" 502 576 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36" "-"
Docker-compose.yml
version: '3'
services:
nginx:
build: ./nginx
restart: always
depends_on:
- toolservice
- ifs
ports:
- "80:80"
ifs:
restart: always
build: ../ifsbackend
ports:
- "8002:8000"
toolservice:
restart: always
build: ../ToolService
ports:
- "8001:8000"
Dockerfile nginx webserver
FROM nginx:1.13-alpine
RUN rm /etc/nginx/conf.d/default.conf
COPY conf/server.conf /etc/nginx/conf.d/
Dockerfile aiohttp backend
FROM python:3.6.6-alpine
COPY tool /
COPY requirements.txt /
COPY toolservice_config.yaml /
RUN apk update && apk add \
python3-dev \
musl-dev \
gcc \
&& pip install -r requirements.txt \
&& pip install virtualenv
RUN python3 -m virtualenv --python=python3 virtualenv
EXPOSE 8080
CMD [ "python", "server.py" ]
Nginx webserver config
#upstream toolservice {
# server 0.0.0.0:8001 fail_timeout=0;
#}
server {
listen 80;
#server_name localhost;
proxy_buffers 8 16k;
proxy_buffer_size 32k;
location /toolservice {
proxy_pass http://toolservice;
proxy_redirect default;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /ifs {
proxy_pass http://ifs;
proxy_redirect default;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}
Aiohttp toolservice backend
from aiohttp import web
from routes import setup_routes
from settings import config
app = web.Application()
setup_routes(app)
app['config'] = config
web.run_app(app, port=8001)
