Problem in the reading of the port parameter

[Gabriel Silva]

I have tried the last example listed on the README, as rewrited below:

version: '3.9'

services:
  whoami:
    image: traefik/whoami
    command:
       # It tells whoami to start listening on 2001 instead of 80
       - --port 2001
       - --name iamfoo

Tried in that way:

whoami:
    # A container that exposes an API to show its IP address
    image: traefik/whoami
    command:
      - "--port 90"
    deploy:
      replicas: 1
      restart_policy:
        condition: on-failure
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.whoami.rule=Host(`foo.bar.localhost`)"
        - "traefik.http.services.whoami.loadbalancer.port=90"
        - "traefik.constraint-label=http_network"
    networks:
      http_network:
        aliases:
          - whoami

Not worked and the container logs output was:

$sudo docker logs c3f33eb92a5b
flag provided but not defined: -port 90

[Ludovic Fernandez]

Hello,

it's not related to whoami.

The Docker Compose specification doesn't allow setting a flag and its value in the same line of the array.

https://docs.docker.com/compose/compose-file/#command