Add testing using Ansible Molecule

[kysrpex]

Test the role on the supported platforms specified in commit f1dc9d3.

[kysrpex]

Please if you approve this and #11, merge without the tests passing (they pass after merging #11). Alternatively merge #11 first and then merge main into this one. Or just do whatever you think makes sense.

[hexylena]

This is a fantastic improvement, thank you so much for contributing tests! It will be so good to have these in more repos :)

The only failures are due to missing git, I think we should maybe just get rid of that completely and download directly the final binary

[hexylena]

I have looked into replacing git with community.general.github_release but it introduces a new dependency on a python module which is worse. So we stick with the git dependency for now.

We could alternatively hardcode the version of gxadmin to download, I'm not certain what's best there. gxadmin is certainly a lot more stable now (in favour of automatic updates), but maybe admins want to control such minute details (they already can by setting the git revision.)

[kysrpex]

I have looked into replacing git with community.general.github_release but it introduces a new dependency on a python module which is worse. So we stick with the git dependency for now.

Well, considering the conversation from #11, I think the a reasonable solution is to add the stuff that #11 does to install the role dependencies to the prepare.yml playbook for now. After all, that is what it is supposed to do.

• prepare: prepare the instance: install any needed packages for the tested role/playbook

[kysrpex]

Noo, I wanted to fix that last detail before you merged 😢, I will make another PR.