can we pass a wildcard in a module's parameter's value ?

[Nick-H]

hi,  again a very simple use case in appearance but that is driving me nuts to realize with ansible, anyone ever done : 

tasks:

- name: run a module

  any_module:

    users: {{item}} # I want to loop first here 

    state: absent

    name: "prefixed-*" # basically anything that starts with 'prefixed'

I tried : 

- as above just using the wildcard symbol , doesn't work 

Things that comes to mind :

- use startswith , but can't find the syntax that would fit here

- use another loop, but that tales me to the slope of nested_loops , something I was NEVER able to make it working. 

any simple possibility to just use wildcard in a string ? 

thanks 

 

[Matt Martz]

I have no idea what your goal is, and without giving a concrete example with an actual module I cannot say.

You want to loop some list variable, but limit to only values that start with prefixed- from that list?

loop: "{{ something|select('match', 'prefixed-.*')|list }}"

Or you could do:

loop: "{{ something }}'

when: item.startswith('prefixed-')

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Matt Martz
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[Nick-H]

thanks Matt,

here is the real example , trying to remove multiple IAM policies from a bunch of users

- name: assign policies to a given user

    iam_policy:

      iam_type: user

      iam_name: "{{ item }}"

      state: absent

      policy_name: "{{ starts_with('database_access-(ro|rw)') }}" ## here I need to wildcard to any policy starting with that string . 

     # policy_name:   "database_access-(ro | rw)"   # the other possibility is to find a switch like here so it can either do database_access-ro OR database_access_rw , regex maybe ? 

  

     loop: "{{ my_users }}" 

As I already have one loop for users , I was trying to find a filter that I could directly pass in the 'policy_name' parameter . 

[Nick-H]

I am not quite sure what {{something}} was supposed to be  here ? 

[Nick-H]

been reading most of ansible docbut can't find anything related to this,

 Can't we just use regular expression for passing a string as a parameter ? 

It looks pretty simple case :

a_module:

 param1:  something_well_defined

 param2:  regex(something_not_so_well_defined.*) 

[Dick Visser]

Parameters can be many things: strings, lists, dicts, boolenas etc.
A generic "wild card" or regex therefore doesn't mean much.

> To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/74d709a8-dc83-414e-9352-1a156eae9959n%40googlegroups.com.



--
Dick Visser
Trust & Identity Service Operations Manager
GÉANT

[Stefan Hornburg (Racke)]

On 10/8/20 8:37 AM, Dick Visser wrote:
> Parameters can be many things: strings, lists, dicts, boolenas etc.
> A generic "wild card" or regex therefore doesn't mean much.

The module needs to support the type, so in general a wildcard would only work if the module explicitly supports it.

Regards
Racke

Ecommerce and Linux consulting + Perl and web application programming.
Debian and Sympa administration. Provisioning with Ansible.