Error that I'm getting:
nginx_prod_vet | 2019/03/07 20:57:11 [error] 6#6: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 172.23.0.1, server: , request: "GET /backend HTTP/1.1", upstream: "http://172.23.0.2:81/backend", host: "localhost:90"
My goal is use nginx as reverse-proxy to delivery the frontend files and proxy the other services to the frontend, so it would be accessible localhost:90/backend been call from localhost:90/.
I tried to access from outside the container the backend but it gives me the error above.
Here are the most relevant files:
# docker-compose.yml
version: '3'
services:
nginx:
container_name: nginx_prod_vet
build:
context: .
dockerfile: nginx/prod/Dockerfile
ports:
- "90:80"
volumes:
- ./nginx/prod/prod.conf:/etc/nginx/nginx.conf:ro
networks:
- main
depends_on:
- backend
backend:
container_name: backend_prod_vet
build:
context: .
dockerfile: apache/Dockerfile
ports:
- "81:81"
networks:
- main
networks:
main:
driver: bridge
# apache/Dockerfile
FROM httpd:2.4.32-alpine
RUN apk update; \
apk upgrade;
# Copy apache vhost file to proxy php requests to php-fpm container
COPY apache/apache.conf /usr/local/apache2/conf/apache.conf
RUN echo "Include /usr/local/apache2/conf/apache.conf" \
>> /usr/local/apache2/conf/httpd.conf
# apache/apache.conf
ServerName localhost
LoadModule deflate_module /usr/local/apache2/modules/mod_deflate.so
LoadModule proxy_module /usr/local/apache2/modules/mod_proxy.so
LoadModule proxy_fcgi_module /usr/local/apache2/modules/mod_proxy_fcgi.so
<VirtualHost *:81>
# Proxy .php requests to port 9000 of the php-fpm container
# ProxyPassMatch ^/(.*\.php(/.*)?)$ fcgi://php:9000/var/www/html/$1
DocumentRoot /var/www/html/
<Directory /var/www/html/>
# DirectoryIndex index.php
Options Indexes FollowSymLinks
AllowOverride All
Require all granted
</Directory>
# Send apache logs to stdout and stderr
CustomLog /proc/self/fd/1 common
ErrorLog /proc/self/fd/2
</VirtualHost>
# nginx/prod/prod.conf
user nginx;
worker_processes 1;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
client_max_body_size 100m;
upstream backend {
server backend:81;
}
server {
listen 80;
charset utf-8;
root /dist/;
index index.html;
location /backend {
proxy_redirect off;
proxy_pass http://backend;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
}
}
}
# nginx/prod/Dockerfile
# build stage
FROM node:10.14.2-jessie as build-stage
WORKDIR /app/
COPY frontend/package.json /app/
RUN npm cache verify
RUN npm install
COPY frontend /app/
RUN npm run build
# production stage
FROM nginx:1.13.12-alpine as production-stage
COPY nginx/prod/prod.conf /etc/nginx/nginx.conf
COPY --from=build-stage /app/dist /dist/
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]
Edit:
docker-compose exec backend netstat -lnpt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.11:38317 0.0.0.0:* LISTEN -
tcp 0 0 :::80 :::* LISTEN 1/httpd
docker-compose exec nginx sh -c "nc backend 81 && echo opened || echo closed"
closed.
