Cannot configure nginx reverse proxy with php support in docker compose

Question

I have been attempting to configure nginx reverse proxy with php support in docker compose that runs an app service on port 3838. I want the app to run the nginx-proxy on port 80. I have combed through several tutorials online but none of them has helped me resolve the problem. I also tried to follow this https://github.com/dmitrym0/simple-lets-encrypt-docker-compose-sample/blob/master/docker-compose.yml but it didn't work. Here is my current docker compose file.

docker-compose.yml

version: '3'
services:
 nginx-proxy:
   image: jwilder/nginx-proxy
   ports:
     - "82:80"
     - "444:443"
   volumes:
     - "/etc/nginx/vhost.d"
     - "/usr/share/nginx/html"
     - "/var/run/docker.sock:/tmp/docker.sock:ro"
     - "/etc/nginx/certs"

app:
 build:
  context: .
  dockerfile: ./app/Dockerfile
 image: rocker/shiny
 container_name: docker-app
 restart: always
 ports:
  - 3838:3838

Am I missing something. Sometimes I see virtual_host environment variables include in the docker-compose file. Is that needed? Also do I have to manually configure nginx config files and attach them to the jwilder/nginx-proxy dockerfile? I a newbie at docker and and I really need some help.

constt · Accepted Answer · 2019-10-13 06:48:57Z

1

Please refer to the Multiple Ports section of the nginx-proxy official docs. In your case, besides setting a mandatory VIRTUAL_HOST env variable (without this a container won't be reverse proxied by the nginx-proxy service), you have to set the VIRTUAL_PORT variable as the nginx-proxy will default to the service running on port 80, but your app service is bind to 3838 port.

Try this docker-compose.yml file to see if it works:

version: "3"

services:
  nginx-proxy:
    image: jwilder/nginx-proxy
    ports:
      - "80:80"
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro

  app:
    build:
      context: .
      dockerfile: ./app/Dockerfile
    image: rocker/shiny
    container_name: docker-app
    restart: always
    expose:
      - 3838
    environment:
      - VIRTUAL_HOST=app.localhost
      - VIRTUAL_PORT=3838

edited Oct 13, 2019 at 6:48

answered Oct 13, 2019 at 6:01

constt

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