Docker nginx multiple apps on one host

Dockerfile:

FROM ubuntu:14.04MAINTAINER Test (test@example.com)# install nginxRUN apt-get update -yRUN apt-get install -y python-software-propertiesRUN apt-get install -y software-properties-commonRUN add-apt-repository -y ppa:nginx/stableRUN apt-get update -yRUN apt-get install -y nginx# deamon mode offRUN echo "\ndaemon off;" >> /etc/nginx/nginx.confRUN chown -R www-data:www-data /var/lib/nginx# volumeVOLUME ["/etc/nginx/sites-enabled", "/etc/nginx/certs", "/var/log/nginx"]# expose portsEXPOSE 80 443# add nginx confADD nginx.conf /etc/nginx/conf.d/default.confWORKDIR /etc/nginxCMD ["nginx"]

nginx.conf:

server {    listen          80;    server_name     test1.com www.test1.com;    location / {        proxy_pass  http://web1:81/;    }}server {    listen          80;    server_name     test2.com www.test2.com;    location / {        proxy_pass  http://web1:82/;    }}

** where web1 and web2 - container names

docker-compose.yml:

version: "2"services:    web1:        image: your_image        container_name: web1        ports:            - 81:80    web2:        image: your_image        container_name: web2        ports:            - 82:80    nginx:        build: .        container_name: nginx        ports:            - 80:80            - 443:443        links:            - web1            - web2

How to run:

docker-compose up -d

When you call test1.com - nginx forwards your request to container web1:81, when test2.com - to container web2:82

P.S.: your question was about NGINX-reverse-proxy. But better and easier do this with TRAEFIK https://traefik.io

You should also be able to open two ports in the same container

services:web:    image: your_image    container_name: web    ports:        - 8080:80        - 8081:81

And the add new config file for second app in nginx site-enabled (or conf.d) that will listen 81 port.

First App

server {listen 80;server_name localhost;root /app/first;}

Second App

server {listen 81;server_name localhost;root /app/second;}

So that:

• first app access on localhost:8080
• second app access on localhost:8081