docker-compose creating multiple instances for the same image

Question

I need to start multiple containers for the same image. If i create my compose file as shown below, it works fine.

version: \'2\'

services:
  app01:
    im         


        

Answer 1

You can do it with replica as mentioned in https://docs.docker.com/compose/compose-file/#replicas

version: '3'
services:
  worker:
    image: dockersamples/examplevotingapp_worker
    networks:
      - frontend
      - backend
    deploy:
      mode: replicated
      replicas: 6

Edit (from the comments): One can use docker-compose --compatibility up to make docker accept deploy section without using swarm.