My docker-compose.yml looks like follows:
version: '2'
services:
consumer:
build:
dockerfile: Dockerfile-consumer
container_name: client2
command: ["/root/headless/runtest.sh", "client2", "hub", "/root/headless/config/test.cfg", $RUNTIME, $TAGS]
depends_on:
- hub
- producer
networks:
- local-testbed
producer:
build:
context: client
dockerfile: Dockerfile-producer
container_name: client1
command: ["/root/headless/runtest.sh", "client1", "hub", "/root/headless/config/test.cfg", $RUNTIME, $TAGS]
depends_on:
- hub
networks:
- local-testbed
hub:
build: hub
container_name: hub
command: ["/root/headless/runtest.sh", "hub", "20", $RUNTIME, $TAGS]
networks:
- local-testbed
networks:
default:
ipam:
config:
- subnet: 10.10.11.0/24
local-testbed:
driver: overlay
ipam:
config:
- subnet: 10.10.12.0/24
I need to run multiple consumers. However, I can’t just simply type “docker-compose scale consumer” as it’ll launch container with the same exact command with second argument being “client2”, whereas I need this variable to have unique value and sequential number for new consumers, like client3, client4, client5, etc.
Without resorting to a script for generating compose files, is there a way/workaround to achieve this using standard docker-compose syntax?