unknown shorthand flag: 'd' in -d docker compose

Question

I am working with a docker compose. when a trying to run docker compose in background, but it shows error unknown shorthand flag: 'd' in -d

I am tried in this way

docker compose -d up

docker-compose.yml

version: '3'

networks:
  loki:

services:
  loki:
    image: grafana/loki:2.5.0
    # volumes:
    #   - ./loki:/loki
    ports:
      - 3100:3100
    networks:
      - loki
  
  promtail:
    image: grafana/promtail
    volumes:
      - ./promtail:/etc/promtail
      - /var/log/nginx/:/var/log/nginx/
    command: -config.file=/etc/promtail/promtail-config.yml
    ports:
      - 9080:9080
    networks:
      - loki
  
  grafana:
    image: grafana/grafana
    ports:
      - 3000:3000
    networks:
      - loki
    
  

Answer 1

The accepted answer is the right answer for the question asker and anyone else putting the -d in the wrong place. But this is the top hit for the error message, and I'm sure I'm not the only one getting this error after running:

docker-compose up -d

The accepted answer telling me to run exactly what I ran was pretty confusing. I finally worked out that:

1. docker-compose is a separate package from docker, at least on Arch Linux, and likely elsewhere, and

2. If docker-compose isn't installed, Docker thinks this makes sense:

   $ docker compose up -d
   unknown shorthand flag: 'd' in -d
   

I think it would be infinitely more sensible to respond with:

docker: 'compose' is not a docker command.

That is what it says if you don't use -d while not having docker-compose installed, and my view is that adding -d shouldn't change that.

I've now installed docker-compose and things are working, but I thought it was worth the time to hopefully save someone else some trouble if they end up here because they have docker but not docker-compose.