From 659f8c492319754a4bc2d92521e7ee88bf57b546 Mon Sep 17 00:00:00 2001
From: Chris Hammer <chris@thezengarden.net>
Date: Thu, 7 Mar 2024 17:56:47 -0500
Subject: [PATCH] add op code

---
 bigboot-op.yml                 | 49 ++++++++++++++++++++++
 tasks/bigboot_manage_lv-op.yml | 76 ++++++++++++++++++++++++++++++++++
 2 files changed, 125 insertions(+)
 create mode 100644 bigboot-op.yml
 create mode 100644 tasks/bigboot_manage_lv-op.yml

diff --git a/bigboot-op.yml b/bigboot-op.yml
new file mode 100644
index 0000000..7da7fc9
--- /dev/null
+++ b/bigboot-op.yml
@@ -0,0 +1,49 @@
+---
+- name: Resize the /boot parition to the desired size
+  hosts: all
+  become: true
+  gather_facts: true
+  strategy: free
+
+  vars:
+    bigboot_size_target: 1G
+
+  tasks:
+    - name: Capture boot device details
+      ansible.builtin.import_tasks: tasks/capture_boot_device_details.yml
+
+    - name: Shrink a logical volume for /boot expansion if needed
+      ansible.builtin.import_tasks: tasks/bigboot_manage_lv-op.yml
+
+
+- name: Import hi playbook
+  ansible.builtin.import_playbook: rhc.rear.hi
+
+
+- name: Expand the /boot partition
+  hosts: all
+  become: true
+  gather_facts: true
+  strategy: free
+
+  tasks:
+    - name: Do we have bigboot_size
+      ansible.builtin.debug:
+        msg: "bigboot_size == {{ bigboot_size }}"
+
+    - name: Do we have bigboot_adjacent_lvm_device
+      ansible.builtin.debug:
+        msg: "bigboot_adjacent_lvm_device == {{ bigboot_adjacent_lvm_device }}"
+
+    - 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 }}"
+      when: bigboot_execute_shrink_lv | bool
+
+    - name: Expand the /boot partition as requested
+      ansible.builtin.include_role:
+        name: infra.lvm_snapshots.bigboot
diff --git a/tasks/bigboot_manage_lv-op.yml b/tasks/bigboot_manage_lv-op.yml
new file mode 100644
index 0000000..62ff11d
--- /dev/null
+++ b/tasks/bigboot_manage_lv-op.yml
@@ -0,0 +1,76 @@
+---
+- 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+.*$', '\\1') }}"
+
+- name: Get logical volume mount information
+  ansible.builtin.set_fact:
+    bigboot_lv_info: "{{ ansible_facts.mounts \
+      | selectattr('device', 'equalto', bigboot_adjacent_lvm_device | trim) | first }}"
+
+- name: Assert that there is space on the logical volume for shrinkage
+  ansible.builtin.assert:
+    that: bigboot_lv_info.size_available > bigboot_expansion_diff | int
+    fail_msg: There is not enough space available for LV shrinking.
+
+- name: Capture shrink size for logical volume
+  ansible.builtin.set_fact:
+    bigboot_lv_shrink_size: "{{ bigboot_lv_info.size_total - bigboot_expansion_diff | int }}"
+
+- name: Capture logical volume name
+  ansible.builtin.shell:
+    cmd: |
+      set -o pipefail
+      lvdisplay {{ bigboot_adjacent_lvm_device }} | grep -i 'vg name'
+    executable: /bin/bash
+  changed_when: false
+  register: bigboot_lv_vg_name
+
+- name: Format logical volume name
+  ansible.builtin.set_fact:
+    bigboot_lv_vg_name: "{{ bigboot_lv_vg_name.stdout | regex_replace('VG\\s+Name\\s+(.*)$', '\\1') }}"
+
+- name: Capture volume group free PE
+  ansible.builtin.shell:
+    cmd: |
+      set -o pipefail
+      vgdisplay {{ bigboot_lv_vg_name | trim }} | 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       414 / <1.62 GiB
+    #   Free  PE / Size       0 / 0
+    bigboot_lv_vg_free_pe: "{{ bigboot_lv_vg_free_pe.stdout | regex_replace('^.*/.*/\\s+[<]?(.*)', '\\1') }}"
+
+- name: Get size in MB for PE and
+  ansible.builtin.set_fact:
+    bigboot_lv_pe_size_in_mb:
+      "{{ bigboot_lv_vg_free_pe | regex_replace('i|\\s+|<', '') | human_to_bytes | human_readable(unit='M') }}"
+
+- name: Verify if there's available PE or not and execute Shrink_LV
+  block:
+    - name: Assert if we need to execute the shrink_lv role to gain free PE
+      ansible.builtin.assert:
+        that: (bigboot_lv_pe_size_in_mb[:-3] | int | round) | int > bigboot_size[:-1] | int
+        fail_msg: Not enough PE to expand /boot.
+
+  rescue:
+    - name: Set flag to execute shrink_lv
+      ansible.builtin.set_fact:
+        bigboot_execute_shrink_lv: true
+