I'd find that above a bit of an anti-pattern.

If you want to include multiple files and have that role associated versus
play associated, the best way to do this is to use the "include_vars"
module inside a task file.

There's an open RFE to include every file in "vars/" automatically with
"main" coming first, but I'm thinking we're likely to close that idea
entirely -- as conditional includes are useful things.





On Sun, Jan 19, 2014 at 11:00 AM, kesten broughton <
[email protected]> wrote:

> Another approach that is working for me is to pass in a vars file that
> points to all the other vars files that you may need that change from run
> to run.
>
> ansible-playbook -i hosts site.yml -e "@cluster_config.yml"
>
> The use case is for creating clusters of hadoop based apps that have a
> high degree of configuration for various environments.
> I find ansible's variables architecture ideal for setting up a situation
> that is more or less the same from run to run.
> But when you have network variables that change from one datacenter to the
> next, or a cluster configuration that depends on staging/prod/dev
> I find In need a more robust and de-coupled way of passing in re-usable
> but swappable configs.
> Note that you could do this by putting all the vars into a
> group_vars/cluster_name.yml but then you have to get creative with groups
> or lose the re-usability of components that can be shared between groups.
>
> Here's how i do it.
>
> cluster_cards/deployment_name/cluster_config.yml  in my ansible playbook
> directory contains
> network_config: "path to networking details for deployment"
> hadoop_config: "path to architecture of hadoop cluster"
> environment_config: "path to file with specific dev/prod config stuff"
>
> Then in site.yml (or a tasks file with include_vars: )
>  - hosts: hadoop_cluster
>    vars_files:
>      - ["{{network_config}}]
>      - ["{{environment_config}}]
>      - ["{{hadoop_config}}]
>
> deployment1/network_config_1.yml
>                    /environment_config.yml
> deployment2/network_config_2.yml
>
>                    /
> shared/small_hadoop_cluster.yml
>           /medium_hadoop_cluster.yml
>
> I still use the ansible hierarchy of vars for less variable/configurable
> constants, but this has worked well for me
>
> kesten
>
> On Friday, January 17, 2014 11:14:06 AM UTC-6, AmiableAlbion wrote:
>>
>> I am struggling to break out variables in the "var" directory of roles
>> into individual files
>>
>> I have tried and continue to get tracebacks. I thought this would be
>> straight forward after seeing the documentation for include_vars, but
>> evidently I am missing something here.
>>
>> I was trying something like this with Ansible 1.4.4
>>
>> *vars/main.yml*
>> *- include_vars: credentials.yml*
>> *- include_vars: imagenames.yml*
>>
>> *vars/imagenames.yml*
>>
>> *centos64: 52225cb3-441b-47b6-9cca-deb14d24d72f*
>> *rhel64: 364cd1c1-e958-4327-a0b4-3251da47869c*
>>
>> *> ansible-playbook vm.yml*
>> *Traceback (most recent call last):  File "/usr/bin/ansible-playbook",
>> line 269, in <module>    sys.exit(main(sys.argv[1:]))  File
>> "/usr/bin/ansible-playbook", line 209, in main    pb.run()  File
>> "/usr/lib/python2.6/site-packages/ansible/playbook/__init__.py", line 229,
>> in run    play = Play(self, play_ds, play_basedir)  File
>> "/usr/lib/python2.6/site-packages/ansible/playbook/play.py", line 83, in
>> __init__    ds = self._load_roles(self.roles, ds)  File
>> "/usr/lib/python2.6/site-packages/ansible/playbook/play.py", line 327, in
>> _load_roles    roles = self._build_role_dependencies(roles, [], self.vars)
>> File "/usr/lib/python2.6/site-packages/ansible/playbook/play.py", line 192,
>> in _build_role_dependencies    role_vars = utils.combine_vars(vars_data,
>> role_vars)  File
>> "/usr/lib/python2.6/site-packages/ansible/utils/__init__.py", line 1008, in
>> combine_vars    return dict(a.items() + b.items())AttributeError: 'list'
>> object has no attribute 'items'*
>>
>> Perhaps I am abusing syntax here though ...
>>
>> Thanks
>> Albion
>>
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-- 
Michael DeHaan <[email protected]>
CTO, AnsibleWorks, Inc.
http://www.ansibleworks.com/

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