Issue - The Compose file is invalid because: Unsupported config option for web

General
1

I have the following ingnix stack that is working

web:
  image: nginx
  container_name: lab-ansred-bootstrap
  restart: unless-stopped
  volumes:
   - /volume1/docker/Bootstrap/AnsRed/config:/usr/share/nginx/html:ro
 ports:
  - "8003:80"

When I am try to use network mode to use another container as its network.

web:
  image: nginx
  container_name: lab-ansred-bootstrap
  restart: unless-stopped
  volumes:
   - /volume1/docker/Bootstrap/AnsRed/config:/usr/share/nginx/html:ro
  network_mode: "container:gluetun-Mullvad"

I get the following error

The Compose file ‘/data/compose/146/docker-compose.yml’ is invalid because: Unsupported config option for web: ‘network_mode’

I think that has to do with something related to docker compose version, not sure though what to change.

Can someone help on this please.

4

Hi

This should work, there is no changes in docker-compose v3 regarding this, ever :slight_smile:
But i tried to do the same as you, on my own linux pc.
Installed the latest docker-compose via Install Docker Compose | Docker Documentation

used the same docker-compose file as you, and it worked.
even tried with different types of case on the container name.

Are you running this on windows?

5

Hey @terpz thanks for testing

Can you share (copy and paste the stack) that worked for you here, to make sure that I don’t miss indentation or spaces or something like that.

My Setup is Synology NAS DSM, Linux

Thanks

6 
version: '3.8'
services:
  web:
    image: nginx
    container_name: lab-ansred-bootstrap
    restart: unless-stopped
    network_mode: "container:TeST-Hest"
1 Like
7

@terpz that is actually worked!

There was some bad formatting/spacing in there.

THANKS FOR THE HELP!

1 Like
8

So what changed? because I copy pasted from you :smiley:

9

Yeah, these things happens most of the time with docker compose. formatting issues.

Here is the final stack that is working perfectly fine now

version: '3.8'
services:
  web:
    image: nginx
    container_name: lab-ansred-bootstrap
    restart: unless-stopped
    volumes:
    - /volume1/docker/Bootstrap/AnsRed/config:/usr/share/nginx/html:ro
    network_mode: "container:gluetun-Mullvad"

:clap: