shrink_lv/tasks/bigboot_manage_lv.yml
Chris Hammer e50d15a72c
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add bigboot-v3.yml, supporting filter_plugins, and fuzzy logic
2024-02-15 21:06:58 -05:00

84 lines
3.2 KiB
YAML

---
- name: Capture logical volume adjacent to /boot
ansible.builtin.shell:
cmd: |
set -o pipefail
lsblk -p -o name,type|grep lvm|head -1
executable: /bin/bash
changed_when: false
register: bigboot_adjacent_lvm
- name: Set adjacent LVM device name
ansible.builtin.set_fact:
bigboot_adjacent_lvm_device: "{{ bigboot_adjacent_lvm.stdout | regex_replace('.*(\\/dev.*)\\s+.*$', '\\1') }}"
- name: Get logical volume mount information
ansible.builtin.set_fact:
bigboot_lv_info: "{{ ansible_facts.mounts \
| selectattr('device', 'equalto', bigboot_adjacent_lvm_device | trim) | first }}"
- name: Capture shrink size for logical volume
ansible.builtin.set_fact:
bigboot_lv_shrink_size: "{{ bigboot_lv_info.size_total - bigboot_expansion_diff | int }}"
- name: Capture logical volume name
ansible.builtin.shell:
cmd: |
set -o pipefail
lvdisplay {{ bigboot_adjacent_lvm_device }} | grep -i 'vg name'
executable: /bin/bash
changed_when: false
register: bigboot_lv_vg_name
- name: Format logical volume name
ansible.builtin.set_fact:
bigboot_lv_vg_name: "{{ bigboot_lv_vg_name.stdout | regex_replace('^.*?\\s+(\\w+)$', '\\1') }}"
- name: Capture volume group free PE
ansible.builtin.shell:
cmd: |
set -o pipefail
vgdisplay {{ bigboot_lv_vg_name }} | grep -i 'free'
executable: /bin/bash
changed_when: false
register: bigboot_lv_vg_free_pe
- name: Format logical volume free PE
ansible.builtin.set_fact:
# Ex:
# Free PE / Size 320 / 1.25 GiB"
# Free PE / Size 189 / 756.00 MiB"
# Free PE / Size 0 / 0
bigboot_lv_vg_free_pe: "{{ bigboot_lv_vg_free_pe.stdout | regex_replace('^.*/.*/\\s+(.*)', '\\1') }}"
- name: Get size only from the values
ansible.builtin.set_fact:
bigboot_lv_size_in_mb:
"{{ bigboot_lv_vg_free_pe | regex_replace('i|\\s+|<', '') | human_to_bytes | human_readable(unit='M') }}"
# "{{ bigboot_lv_vg_free_pe | regex_replace('i', '') | regex_replace(' ', '') | human_to_bytes | human_readable(unit='M') }}"
bigboot_size_in_mb: "{{ bigboot_size[:-1] }}"
- name: Check if we can shrink the logical volume
block:
- name: Assert if we need to execute the shrink_lv role
ansible.builtin.assert:
that:
- bigboot_lv_vg_free_pe[:-4] != ''
- (bigboot_lv_size_in_mb[:-6] | int - bigboot_size_in_mb | int ) >= 0
# - (bigboot_lv_info.size_available - bigboot_size | human_to_bytes) >= 0
fail_msg: Not enough free PE available for /boot expansion.
rescue:
- name: Assert there is free space available for shrinking
ansible.builtin.assert:
that: (bigboot_lv_info.size_available - bigboot_size | human_to_bytes) >= 0
fail_msg: "Not enough space available on {{ bigboot_adjacent_lvm_device | trim }} for shrinking."
- name: Execute Shrink_LV role to resize target logical volume
ansible.builtin.import_role:
name: infra.lvm_snapshots.shrink_lv
vars:
shrink_lv_devices:
- device: "{{ bigboot_adjacent_lvm_device | trim }}"
size: "{{ bigboot_lv_shrink_size | int | human_readable | regex_replace('^(.*\\.\\d+)\\s+(\\w).*$', '\\1\\2') }}"