Say I've created a docker host with the docker_image and docker modules.
In the same playbook where I apply the role that creates the host, I'd like
to apply a role to the newly created host.
The problem I'm running into is ansible's inventory doesn't know about the
newly created host. How can ansible know about the new host? A dynamic
inventory script that queries docker to return the hosts and IPs doesn't do
it because of the caching ansible does. Using that dynamic inventory
script I have to call ansible on that playbook twice to get the desired
result.
Anybody got any ideas or different approaches?
Here's a playbook to illustrate:
- hosts: localhost
sudo: True
roles:
- { role: phusion-baseimage-ubuntu-14.04-docker, new_hostname: limbo }
- hosts: limbo
roles:
- limbo-packages
And here's the role main task:
- name: check or build container for {{ new_hostname }}
docker_image: >
path="docker-files/{{ new_hostname }}"
name="xxx/limbo"
state=present
- name: bring up container for {{ new_hostname }}
docker: >
dns=8.8.8.8
hostname={{ new_hostname }}
image=xxx/limbo
state=present
name="{{ new_hostname }}"
expose=22
ports="127.0.0.1:5022:22"
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