In case anyone cares, the way to do this is:
- name: x
set_fact:
src_from_list: "{{ files|map(attribute='src')|list }}"
- name: y
debug: msg='{{ item }}'
with_items:
- "{{ src_from_list }}"
which then outputs the values of 'src' (that being 'a', and 'b')
Thanks,
Nico
On Sunday, August 2, 2015 at 10:10:30 AM UTC+2, Nico K. wrote:
>
> Hi,
>
> I've been restructuring my variables and ended up with something along the
> lines of:
>
> files:
> - { src: 'a' }
> - { src: 'b' }
>
> and a role that does:
>
> - name: x
> template:
> src: {{ item.src }}
> ...
> mode: {{ item.mode|default(0755) }}
> owner: {{ item.owner|default(root) }}
>
> This allows me to easily override the ownership/mode on a single file, yet
> have defaults for them if not specified, it also makes a step like this
> easily exchangeable with other roles (assuming you use the same variable
> structure there).
> Anyway, what's problematic with such a layout is to determine whether a
> given file exists in a list of other files (for example for the sake of
> removing unmanaged files), think:
>
> (Please bear in mind that I'm typing this from memory, so if I mixed up
> the syntax of a module, no need to point that out, just trying to
> illustrate my use-case)
>
> - name: collect files..
> shell: blah
> register: found_files
>
> - name: remove unmanaged
> file:
> path: {{ item }}
> state: absent
> with_items:
> - found_files
> when: item not in files
>
> This is where it goes wrong, as files no longer is a flat list, but a list
> containing a dictionary; is there an easy way to say "when: item not in
> files.[*].src"? Or do I have to start using with_nested in this case
> (results in quite some overhead!!).
>
> Thanks,
> Nico
>
>
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