Re: [gentoo-user] Usign ansible

[Stefan G. Weichinger]

On 29.01.2015 10:47, Tomas Mozes wrote:

> Have your IPs listed in hosts-production.
>
> For each site create a file, like:
>
> site_A.yml
> - hosts: site_A
>   roles:
>     - ...
>
> site_B.yml
> - hosts: site_B
>   roles:
>     - ...
>
> Then create site.yml where you include site_A.yml and site_B.yml.
> Mostly, you will not only use roles inclusion, but have something
> special done on the server, so either you create a role corresponding to
> this file (like role site_A, site_B) where you name the tasks or you put
> it directly in the site_A.yml, site_B.yml file. This is the stuff unique
> to the server, like creating a specific user, specific directory, with
> specific files...
>
> Then if you want to reconfigure all, just
> ansible-playbook -i hosts-production site.yml
>
> Only site_A:
> ansible-playbook -i hosts-production site_A.yml
>
> Only configure postfix on site_B:
> ansible-playbook -i hosts-production site_B.yml --tags postfix -v
>
> Read:
> http://docs.ansible.com/playbooks_roles.html
> http://docs.ansible.com/playbooks_best_practices.html
>

Thanks, Tomas ... yes .... and no ... ;-)

I wonder if I could also:

cp defaults/main.yml to group_vars/site_[AB].yml  ...

adjust the configs to the sites and then use something like:

# playbook 1

- hosts: site_A
  roles:
  - dhcpd

# playbook 2

- hosts: site_B
  roles:
  - dhcpd

.... would the group_vars override the vars defined in defaults/main.yml ?

I *think* so ... I will try that ...

Stefan