Missing ansible version check / usage of unsupported feature allow_downgrade

[cdm-arm]

Describe the bug

Starting with version 0.22.0 the role no longer works with ansible < 2.12. Hence debian buster is by default not supported as only python 3.7 is available.

To reproduce

Steps to reproduce the behavior:

1. Use Debian 10 VM
2. Install ansible via python3 -m pip ansible
3. install role in version 0.22
4. Deploy NGINX role using a playbook.yml
5. See error

build 21-Dec-2021 16:17:15 Ensuring that all ansible roles are installed in the latest version
error 21-Dec-2021 16:17:15 [DEPRECATION WARNING]: Ansible will require Python 3.8 or newer on the
error 21-Dec-2021 16:17:15 controller starting with Ansible 2.12. Current version: 3.7.3 (default, Jan 22
error 21-Dec-2021 16:17:15 2021, 20:04:44) [GCC 8.3.0]. This feature will be removed from ansible-core in
error 21-Dec-2021 16:17:15 version 2.12. Deprecation warnings can be disabled by setting
error 21-Dec-2021 16:17:15 deprecation_warnings=False in ansible.cfg.
build 21-Dec-2021 16:17:16 Starting galaxy role install process
build 21-Dec-2021 16:17:17 - downloading role 'nginx', owned by nginxinc
build 21-Dec-2021 16:17:18 - downloading role from https://github.com/nginxinc/ansible-role-nginx/archive/0.22.0.tar.gz
build 21-Dec-2021 16:17:19 - extracting nginxinc.nginx to ....../ansible-env/.ansible/roles/nginxinc.nginx
build 21-Dec-2021 16:17:19 - nginxinc.nginx (0.22.0) was installed successfully
build 21-Dec-2021 16:17:19 - downloading role 'nginx_config', owned by nginxinc
build 21-Dec-2021 16:17:20 - downloading role from https://github.com/nginxinc/ansible-role-nginx-config/archive/0.3.3.tar.gz
build 21-Dec-2021 16:17:20 - extracting nginxinc.nginx_config to ..../ansible-env/.ansible/roles/nginxinc.nginx_config
build 21-Dec-2021 16:17:20 - nginxinc.nginx_config (0.3.3) was installed successfully
error 21-Dec-2021 16:17:20 [DEPRECATION WARNING]: Ansible will require Python 3.8 or newer on the
error 21-Dec-2021 16:17:20 controller starting with Ansible 2.12. Current version: 3.7.3 (default, Jan 22
error 21-Dec-2021 16:17:20 2021, 20:04:44) [GCC 8.3.0]. This feature will be removed from ansible-core in
error 21-Dec-2021 16:17:20 version 2.12. Deprecation warnings can be disabled by setting
error 21-Dec-2021 16:17:20 deprecation_warnings=False in ansible.cfg.
build 21-Dec-2021 16:17:21
build 21-Dec-2021 16:17:21 PLAY [frontendservers:&dev] *****************************************
build 21-Dec-2021 16:17:21
build 21-Dec-2021 16:17:21 TASK [Gathering Facts] *********************************************************
.....

build 21-Dec-2021 16:17:24 TASK [nginxinc.nginx : Check whether you are using a supported NGINX distribution] ***
build 21-Dec-2021 16:17:24 ok: [xxxxxxx] => {
build 21-Dec-2021 16:17:24 "changed": false,
build 21-Dec-2021 16:17:24 "msg": "Your OS, Debian is supported by NGINX Open Source"
build 21-Dec-2021 16:17:24 }
build 21-Dec-2021 16:17:24
build 21-Dec-2021 16:17:24 TASK [nginxinc.nginx : Check that NGINX setup is an allowed value] *************
build 21-Dec-2021 16:17:24 ok: [xxxxxxx] => {
build 21-Dec-2021 16:17:24 "changed": false,
build 21-Dec-2021 16:17:24 "msg": "All assertions passed"
build 21-Dec-2021 16:17:24 }
build 21-Dec-2021 16:17:24
build 21-Dec-2021 16:17:24 TASK [nginxinc.nginx : Set up prerequisites] ***********************************
build 21-Dec-2021 16:17:24 included: ...../ansible-env/.ansible/roles/nginxinc.nginx/tasks/prerequisites/prerequisites.yml for xxxxxxx
build 21-Dec-2021 16:17:24
build 21-Dec-2021 16:17:24 TASK [nginxinc.nginx : Install dependencies] ***********************************
build 21-Dec-2021 16:17:24 included: ....../ansible-env/.ansible/roles/nginxinc.nginx/tasks/prerequisites/install-dependencies.yml for xxxxxxx
build 21-Dec-2021 16:17:24
build 21-Dec-2021 16:17:25 TASK [nginxinc.nginx : (Debian/Ubuntu) Install dependencies] *******************
build 21-Dec-2021 16:17:27 ok: [xxxxxxx]
build 21-Dec-2021 16:17:27

build 21-Dec-2021 16:17:29 TASK [nginxinc.nginx : (Debian/Ubuntu) Install NGINX] **************************
build 21-Dec-2021 16:17:29 fatal: [xxxxxxx]: FAILED! => {"changed": false, "msg": "Unsupported parameters for (apt) module: allow_downgrade. Supported parameters include: dpkg_options, update_cache_retry_max_delay, autoremove, force, force_apt_get, policy_rc_d, upgrade, update_cache (update-cache), autoclean, install_recommends (install-recommends), fail_on_autoremove, purge, state, update_cache_retries, package (name, pkg), deb, only_upgrade, default_release (default-release), allow_unauthenticated (allow-unauthenticated), cache_valid_time."}
build 21-Dec-2021 16:17:29
build 21-Dec-2021 16:17:29 PLAY RECAP *********************************************************************
build 21-Dec-2021 16:17:29 xxxxxxx : ok=15 changed=1 unreachable=0 failed=1 skipped=11 rescued=0 ignored=0

Expected behavior

System check should fail due to unsupported ansible version

Your environment

• Version of the NGINX role or specific commit: 0.22
• Version of Ansible: 2.11
• Target deployment platform: debian buster

[alessfg]

Checking within the role for unsupported versions of Ansible is on the roadmap. I'm aiming to add it before the next major release but I have no ETA at the moment. PRs are welcome too!

[TuxInvader]

This also applies to Ubuntu Bionic (18.04 LTS) where the most recent Ansible PPA release is currently 2.9.27. Newer Ubuntu versions have 5.x releases, so Focal (20.04 LTS) works.

[w0rldart]

I'm experiencing this issue with Ubuntu Focal too

ansible [core 2.11.6]