* feat(k3s_upgrade): regenerate service files from templates instead of restoring backups
The k3s_upgrade role previously restored backup service files after binary
upgrade, which meant any changes to extra_server_args or extra_agent_args
would not be applied during upgrades.
This change:
- Replaces backup restoration with template-based service file regeneration
- Reuses templates from k3s_server role via symlink
- Adds necessary defaults for template variables
Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
- [Agent : Download artefact only if needed](roles/k3s_agent/tasks/main.yml#L13)
- [Server : Download artefact only if needed](roles/k3s_server/tasks/main.yml#L13)
- [Upgrade : Upgrade node only if needed](roles/k3s_upgrade/tasks/main.yml#L14)
Linked issue #264 k3s_server and k3s_agent tasks are not idempotent
Signed-off-by: Loïc Dubard <loic97429@gmail.com>
