feat(ansible): maintenance playbooks

[ModerNews]

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[Copilot]

Pull request overview

Adds Ansible “maintenance” capabilities to the existing RKE2 bootstrap automation, introducing playbooks/roles for scaling a running cluster and safely decommissioning nodes.

Changes:

• Add rke2-scale.yaml to detect existing vs new nodes and only run join steps for new hosts.
• Add rke2-decommission.yaml plus node maintenance roles (node-drain, node-uncordon, node-remove) to drain/remove nodes and clean up cluster membership.
• Update ansible/README.md with new entry points, roles, and tags.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
ansible/README.md	Documents new maintenance playbooks/roles and updates the tags table.
ansible/playbooks/roles/node-drain/tasks/main.yaml	Adds a reusable role to cordon+drain a node via the Kubernetes API from localhost.
ansible/playbooks/roles/node-uncordon/tasks/main.yaml	Adds a reusable role to uncordon a node via the Kubernetes API from localhost.
ansible/playbooks/roles/node-remove/tasks/main.yaml	Implements end-to-end node removal (drain, etcd member removal for masters, stop/uninstall, delete Node object).
ansible/playbooks/rke2-scale.yaml	Adds a scale-up entry point that groups hosts by detected RKE2 state and runs join stages for new nodes.
ansible/playbooks/rke2-decommission.yaml	Adds a decommission entry point with quorum preflight and serial master removals.

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[SmigorX]

Copilot has some pretty good suggestions