Mikechau datadir

[aleiner]

What type of PR is this?

(REQUIRED)

• bug
• cleanup
• documentation
• feature

What this PR does / why we need it:

The rke2_data_dir ends up being always replaced by the host_rke2_config default if host_rke2_config["data-dir"] is not set.

This change checks to see if data-dir is defined in cluster_rke2_config, group_rke2_config and host_rke2_config, before setting rke2_data_dir. If none of them have data-dir, it will fallback to setting rke2_data_dir to /var/lib/rancher/rke2.

Special notes for your reviewer:

There's probably a more cleaner way to do this like instead of checking for data-dir individually we could combine these vars to create the full rke2_config:

• name: Build merged rke2_config
  ansible.builtin.set_fact:
  rke2_config: >-
  {{
  (cluster_rke2_config | default({}))
  | combine(group_rke2_config | default({}))
  | combine(host_rke2_config | default({}))
  }}

• name: Set rke2_data_dir
  ansible.builtin.set_fact:
  rke2_data_dir: "{{ rke2_config.get('data-dir', '/var/lib/rancher/rke2') }}"

Testing

(fill-in or delete this section)

Release Notes

updates to data-dir logic