Using docker_containers return value in a different role

[mitchel...@gmail.com]

Hi All,

I am running a role "run_docker_containers" which creates a series of docker containers using the docker module.

- name: Run containers
  docker: state=present name={{ item }} ports=80 image=myimage command='blah'
  with_sequence: start=1 end='5' format=mycontainer_%d

The containers are created OK, and I can display the output of the module by using a debug statement (from the documentation examples) if I put the debug statement inside the role "run_docker_containers".

- debug: msg={{inventory_hostname}}:{{item}}
  with_items: docker_containers

I am currently trying to pass the information returned by the docker module to a different role. The other role is part of setting up load balancing, so I am trying to get IP and port settings of the containers.

I have tried using the debug statement above inside "load_balance" but could not get it to display any information. Here is what the output looks like inside the other role:

[mytest.host] => (item=docker_containers) => {

    "item": "docker_containers",  

    "msg": "mytest.host:docker_containers"

}

Here is what the list of roles looks like:

- hosts: testhosts
  roles:
    - run_docker_containers
    - load_balance

Any ideas how I can pass the information between roles?

Thanks

Mitch

[Paul Durivage]

I think what you want to use is the set_fact module to set variables from your provisioning roles that you later recall when provisioning your LBs.

http://docs.ansible.com/set_fact_module.html

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