Hi,
You can use parameterized roles …
I use the following to create several DB using one role (roughly):
roles/create_db/tasks/main.yml:
- name: create {{ db_name }}
mysql_db: name={{ db_name }} encoding=utf8 login_user=root state=present
login_password={{ mysql_root_password }}
then it is called as follow in the playbook:
- hosts: db_server
roles:
- { role: create_db, db_name: DB_1 }
- { role: create_db, db_name: DB_2 }
- { role: create_db, db_name: DB_3 }
Typically, for an apache vhost configuration, you could pass the value of
“servername" and “documentroot” to the webserver role like this
role:
- { role: webservers, servername: www.site1.com, documentroot:
/var/www/site1 }
- { role: webservers, servername: www.siteB.com, documentroot:
/var/www2/siteB }
- note 1:
you should be using {{ my_var }} instead of $my_var
-note 2:
you are mentioning role dependencies, which is meant to configure… dependencies
between roles (ie the role webservers requires the role common) and I am not
sure that it is related to you question
http://www.ansibleworks.com/docs/playbooks_roles.html#role-dependencies
HTH
Fred
On Nov 28, 2013, at 13:37 , Shih Oon Liong <shihoon.li...@invokelabs.com> wrote:
> Hi,
>
> I am kinda confused on what is the right syntax to try out this. Running a
> role multiple times in a single playbok but a different var_files each time.
>
> I have a web server role for a LAMP stack that will also install the Apache
> vhost site. My idea was that I can run this role on the same server if I was
> installing multiple sites - Ansible would just skip the software
> installations but just install the vhost configs.
>
> This works fine if I run the playbook multiple times manually. What I want to
> do is to do this multiple times in one single playbook. My assumption is that
> I should be using Role Dependencies (amirite?).
>
> My current playbook *roughly*
>
> ---
> # Deployment for web servers
> #
> - hosts: $hosts
> user: $user
> sudo: true
> name: Install Apache and PHP.
> vars_files:
> - $config_path
>
> roles:
> - common
> - webservers
>
>
> As you can see, I heavily use vars_files since I find configs to be in a
> separate file much easier to manage.
>
> What I am confused is how can I use role dependencies but load up a different
> var_files each time round? The example in the documentation seems to imply
> just individual variable replacements but my webservers role has several
> variables that need to be set for a site install which will make it unwieldy.
>
> Any help is much appreciated. Thanks!
>
>
>
>
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