Install Ansible with Pipx

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Install Ansible using pipx instead of using Linux package managers. Requires pipx as an additional dependency.

Resolves a version conflict issue for RPM distributions that occurs when installing to a remote Ubuntu target. dnf provides ansible core version 2.14.18, pipx provides version 2.15.13, which includes a back-ported patch for this issue.

[SamuelCarroll]

Privately contacted, but ran into an issue running this on Ubuntu 22 and Ubuntu 24.

[SamuelCarroll]

Tested locally with Ubuntu 22, 24, Centos, and Rocky all look good to me

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Testing left to complete:

• Ubuntu
• Ubuntu -> CentOS
• Ubuntu -> Rocky
• Ubuntu -> RHEL
• CentOS
• CentOS -> Ubuntu
• CentOS -> Rocky
• CentOS -> RHEL
• Rocky
• Rocky -> Ubuntu
• Rocky -> CentOS
• Rocky -> RHEL
• RHEL
• RHEL -> Ubuntu
• RHEL -> CentOS
• RHEL -> Rocky

Testing performed on DigitalOcean droplets using snapshots. All four snapshots restored after installation testing from each distro (local + all remotes).

[0x6d6f7468]

Ansible Core 2.20 (default version on Ubuntu 24.04 via pipx) deprecates things and makes breaking changes to some playbook syntax, so I'm going to try pinning Ansible version >2.15.3 to avoid needing to make a lot of breaking changes. We may need to revisit in the future, but I don't think now is the time. Converting this back into a draft until local/remote install testing against all supported distros is complete.