I think the intersect() filter is what you are looking for:
http://docs.ansible.com/ansible/latest/playbooks_filters.html#set-theory-filters
Here's what I think (untested) your task would look like:
tasks:
- name: Test
debug:
msg: "Do a thing to {{ item }} on {{ inventory_hostname }}"
with_items: "{{ users }}"
when: item.employee_roles |
intersect(hostvars[inventory_hostname].active_system_roles)
-Toshio
On Fri, Aug 4, 2017 at 1:55 PM, Tim Gaastra <[email protected]> wrote:
> Is there any way in Ansible to succinctly test for set membership in a
> list, from a list?
>
> An example in psuedo-Ansible code:
>
> users:
> - name: Jim
> employee_roles:
> - Admin
> - name: Bob
> employee_roles:
> - DBA
> - name: Suz
> employee_roles:
> - Developer
> - name: Kev
> employee_roles:
> - DBA
> - Developer
>
> Then, in group vars for a set of hosts:
>
> group-a
> ----------
> active_system_roles:
> - Admin
> - DBA
>
> group-b
> ----------
> active_system_roles:
> - Admin
> - Developer
>
> I'd like a task that could do something like (aware this isn't real code):
>
> tasks:
> - name: Test
> debug:
> msg: "Do a thing to that user on this host"
> with_items: "{{ users }}"
> when: item.employee_roles in hostvars[inventory_hostname].
> active_system_roles
>
> I.E. if any of the employee's roles are in the list of
> active_system_roles, do a thing to that user on that host.
>
>
>
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