tripleo-ipa molecule fails on setup

[Rafael Folco]

2020-10-16 12:57:34.904862 | centos-8 | TASK [tripleo_ipa_setup : add Nova Host Manager role] **************************
2020-10-16 12:57:37.765773 | centos-8 | fatal: [centos7]: FAILED! => changed=false
2020-10-16 12:57:37.765891 | centos-8 | msg: 'login: Request failed: <urlopen error [Errno -2] Name or service not known>'

https://ce80c1f1e334c2d6e684-80c443440d80b442553d584c01a89285.ssl.cf1.rackcdn.com/758222/2/check/tripleo-ipa-centos-8-molecule/ea93c3e/job-output.txt

This issue showed up in patch
https://review.opendev.org/#/c/758222/
which fixes the container.io manual install (gpg error)

[David Wilde (dave-wilde)]

This was determined to be an issue with Ansible 2.10 moving community modules to collections. For the time being we are going to pin the Ansible version we require to the 2.9.x branch but will be eventually moving to using the ansible-freeipa modules for our IPA needs.

I've updated https://review.opendev.org/#/c/758222/ to include an upper constraint on the Ansible version.