---
# ============================================================================
# day0_expand_root_lv.yml
# ----------------------------------------------------------------------------
# Reclaims unallocated PE on the root volume group, extending the root LV
# to fill the VG and resizing the underlying filesystem (ext4 or xfs).
#
# Belongs to the day0 host-provisioning lifecycle. The Ubuntu Server
# autoinstall template ships with the root LV at ~half the disk size by
# default; this playbook is the canonical one-shot fix-up for that.
#
# Idempotent and safe to re-run. Hosts without LVM are no-op'd cleanly.
#
# Opt-out: set `expand_root_lv_skip: true` in host_vars/<host>.yml for
# hosts where free PE should NOT be claimed by root (e.g. hosts with a
# planned second LV in the same VG for application data).
#
# Usage:
#   ansible-playbook playbooks/day0_expand_root_lv.yml
#   ansible-playbook playbooks/day0_expand_root_lv.yml -e target=lincoln
#   ansible-playbook playbooks/day0_expand_root_lv.yml -e target=honcho_server
# ============================================================================

- name: Expand root logical volume to fill VG
  hosts: "{{ target | default('all') }}"
  become: true
  gather_facts: true
  tasks:
    - name: Apply expand_root_lv role unless host opts out
      ansible.builtin.include_role:
        name: expand_root_lv
      when: not (expand_root_lv_skip | default(false) | bool)