---
- name: Cleanup stale iSCSI nodes and restart open-iscsi
  hosts: myrddin.prole.org
  become: true
  tasks:
    - name: List configured iSCSI nodes
      ansible.builtin.command: iscsiadm -m node
      register: iscsiadm_nodes
      changed_when: false
      failed_when: false

    - name: Build desired iSCSI target list
      ansible.builtin.set_fact:
        desired_iqns: "{{ iscsi_targets | default([]) | map(attribute='iqn') | list }}"

    - name: Build current iSCSI node list
      ansible.builtin.set_fact:
        iscsi_node_iqns: "{{ iscsiadm_nodes.stdout_lines | default([]) | map('split') | map('first') | list | unique }}"

    - name: Determine stale iSCSI nodes
      ansible.builtin.set_fact:
        iscsi_stale_iqns: "{{ iscsi_node_iqns | difference(desired_iqns | default([])) }}"

    - name: Logout stale iSCSI nodes
      ansible.builtin.command: >
        iscsiadm -m node -T {{ item }} -p {{ iscsi_portal }} --logout
      loop: "{{ iscsi_stale_iqns | default([]) }}"
      loop_control:
        label: "{{ item }}"
      failed_when: false

    - name: Delete stale iSCSI node records
      ansible.builtin.command: >
        iscsiadm -m node -o delete -T {{ item }} -p {{ iscsi_portal }}
      loop: "{{ iscsi_stale_iqns | default([]) }}"
      loop_control:
        label: "{{ item }}"
      failed_when: false

    - name: Reset open-iscsi failed state
      ansible.builtin.command: systemctl reset-failed open-iscsi
      changed_when: false
      failed_when: false

    - name: Restart open-iscsi
      ansible.builtin.service:
        name: open-iscsi
        state: restarted

    - name: Check open-iscsi status
      ansible.builtin.command: systemctl is-failed open-iscsi
      register: open_iscsi_state
      changed_when: false
      failed_when: false

    - name: Report open-iscsi status
      ansible.builtin.debug:
        msg: "open-iscsi state: {{ open_iscsi_state.stdout | default('unknown') }}"