How can I debug this playbook so that I can properly loop over the hostvars?

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1

I have an inventory file like this:

`
[redisservers]
72.14.178.81

[webservers]
198.58.107.247
`

I’m trying to run this playbook against the redisservers group to allow access to port 6379 for the webservers:

`

2

So I wrote a template task that populates this jinja template:

{{ hostvars['198.58.107.247'] }}

And this is the output I got:

{'ansible_ssh_user': 'root', 'inventory_hostname_short': '198', 'group_names': ['webservers'], 'inventory_hostname': '198.58.107.247'}

So hostvars[‘198.58.107.247’] doesn’t seem to be filled with all the facts for that host. Then I realized that the root playbook I’m running (provision.yml) looks like this:

`

3

In Ansible to use facts about a host you must have either:

already gathered facts from that host in that play (just gathering facts would be enough, no tasks needed)

  • hosts: webservers:dbservers
    tasks:

  • hosts: webservers # that need to know facts about dbservers
    tasks:

  • …

OR

enabled fact caching and previously talked to that host within the cache timeout

http://docs.ansible.com/playbooks_variables.html#fact-caching