kubespray/playbooks/remove_node.yml

---
- name: Validate nodes for removal
  hosts: localhost
  tasks:
    - name: Assert that nodes are specified for removal
      assert:
        that:
          - node is defined
          - node | length > 0
        msg: "No nodes specified for removal. The `node` variable must be set explicitly."

- name: Common tasks for every playbooks
  import_playbook: boilerplate.yml

- name: Confirm node removal
  hosts: "{{ node | default('this_is_unreachable') }}"
  gather_facts: false
  tasks:
    - name: Confirm Execution
      pause:
        prompt: "Are you sure you want to delete nodes state? Type 'yes' to delete nodes."
      register: pause_result
      run_once: true
      when:
        - not (skip_confirmation | default(false) | bool)

    - name: Fail if user does not confirm deletion
      fail:
        msg: "Delete nodes confirmation failed"
      when: pause_result.user_input | default('yes') != 'yes'

- name: Gather facts
  import_playbook: facts.yml
  when: reset_nodes | default(True) | bool

- name: Reset node
  hosts: "{{ node | default('this_is_unreachable') }}"
  gather_facts: false
  environment: "{{ proxy_disable_env }}"
  pre_tasks:
    - name: Gather information about installed services
      service_facts:
      when: reset_nodes | default(True) | bool
  roles:
    - { role: kubespray_defaults, when: reset_nodes | default(True) | bool }
    - { role: remove_node/pre_remove, tags: pre-remove }
    - role: remove-node/remove-etcd-node
      when: "'etcd' in group_names"
    - { role: reset, tags: reset, when: reset_nodes | default(True) | bool }

# Currently cannot remove first control plane node or first etcd node
- name: Post node removal
  hosts: "{{ node | default('this_is_unreachable') }}"
  gather_facts: false
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray_defaults, when: reset_nodes | default(True) | bool }
    - { role: remove-node/post-remove, tags: post-remove }