role fails with "Invalid data passed to 'loop'"

[b1r63r]

TASK [stackhpc.libvirt-host : Ensure configuration files exist] **********************************************************************************************************
task path: /home/birger/.ansible/roles/stackhpc.libvirt-host/tasks/config.yml:24
fatal: [examplehost]: FAILED! => {
"msg": "Invalid data passed to 'loop', it requires a list, got this instead: <generator object select_or_reject at 0x7f2bcc663f40>. Hint: If you passed a list/dict of just one element, try adding wantlist=True to your lookup invocation or use q/query instead of lookup."
}

I used the role t2d.ansible_role_libvirt_host (which is v. 1.4.1 of this same project?) without this problem. It had other problems, though. So I tried to switch over here. Same playbook now gives this error.

Running ansible on fedora, with target system running Centos 8 stream

[b1r63r]

I got around this by appending
| list
to a bunch of loops. I didn't even try to understand the existing stuff, just forced everything that triggered errors to become lists. Now everything seems to work, including the stuff that did not work in t2d.ansible_role_libvirt_host.
Now on to find out why the vm only starts with selinux in permissive mode.

[markgoddard]

Hi @b1r63r, will you provide a PR?

[tib-rijo]

The pipe probably worked due to the behaviour explained in https://groups.google.com/g/ansible-project/c/CCu2nutG5Pg/m/0-oIE0XRAwAJ

It's also similar to https://stackoverflow.com/questions/79002263/loop-is-not-working-with-data-type-test-as-conditional-in-ansible