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dockerdocker-composedocker-machine

Run multiple docker-compose (one per machine)

I'm testing a lot of micro-services. I group some of them in a docker-compose file like:

agent:
  image: php:fpm
  volumes:
    - ./GIT:/reposcm:ro
  expose:
    - 9000
  links:
    - elastic

elastic:
  image: elasticsearch
  expose:
    - 9200
    - 9300

Then I start the first one by $docker-compose up

In another directory I would start another "micro-service" by $docker-compose up. But I get:

ERROR: Couldn't connect to Docker daemon - you might need to run `docker-machine start default`.

How can I specify the docker machine for a docker-compose.yml? 

$docker-machine ls
NAME      ACTIVE   DRIVER       STATE     URL                         SWARM
default   -        virtualbox   Running   tcp://192.168.99.101:2376
my_test   -        virtualbox   Running   tcp://192.168.99.102:2376

Only the default machine can run a "micro-service".

How can I specify a target machine of a docker-compose.yml?

Solution

  • Make sure that, in the shell you want to run your second docker-compose up, you have done first a docker-machine env:

    docker-machine env <machine name>
eval "$(docker-machine env <machine name>)

    That will configure the right environment variables for docker commands to contact the right machine (the right docker daemon).