Thanks for the tips, didnt know about both!
What if I want to "declare" variables somewhere, to tell user about what
he can use, but leave that variables "undefined" so they will fail is
defined test? What people usually do in this situations?
I want to make file like required_vars.yml and put all required
variables there, and then do something like this:
- name: check required variables
fail: msg="Variable '{{ item }}' is not defined"
when: item is defined
with_items:
- include: required_vars.yml
Is there way to do this?
On 21.05.2014 11:02, 'Petros Moisiadis' via Ansible Project wrote:
On 05/21/2014 08:24 AM, Andrew Pashkin wrote:
I want to make my playbook in a way where process will fail with an
error if user was not provided required parameters, what is the way to
do that in Ansible?
The default behavior is to fail if using a variable that is not defined.
There is also a configuration option that disables this, and then you
can use "{{ myvar | mandatory }}" to explicitly have the same effect.
Keep in mind, though, that the failure occurs when reaching a task that
uses an undefined variable. If you want to fail before any task is
executed, you could add another task at the top of your tasks that fails
if a mandatory variable is not defined. For example:
tasks:
- fail: msg="Variable '{{ item }}' is not defined"
when: item not in hostvars[inventory_hostname]
with_items:
- myvariable1
- myvariable2
--
With kind regards, Andrew Pashkin.
cell phone - +7 (985) 898 57 59
Skype - waves_in_fluids
e-mail - [email protected]
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