add bigboot-v2.yml playbook; adds support to be resuced by calling shrink_lv if bigboot initially fails, then calls bigboot to resize

.gitignore

@@ -1 +1,2 @@
 inventory/*
+*.bak

bigboot-v2.yml

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+---
+- name: Resize /boot partition on target host
+  hosts: all
+  become: true
+  gather_facts: true
+
+  tasks:
+    - name: Resize boot partition
+      block:
+        - name: Execute Bigboot role to resize /boot
+          ansible.builtin.import_role:
+            name: infra.lvm_snapshots.bigboot
+
+      rescue:
+        - name: Get the target device information and calculate padding
+          ansible.builtin.set_fact:
+            bigboot_shrink_target_info: "{{ ansible_facts.mounts \
+              | selectattr('device', 'equalto', bigboot_shrink_target) | first }}"
+            bigboot_size_padded: (bigboot_size | human_to_bytes * bigboot_shrink_padding) | int
+
+        - name: Calculate the new logical volume size
+          ansible.builtin.set_fact:
+            shrink_lv_volume_size: "{{ (bigboot_shrink_target_info.size_total - bigboot_size_padded | int) \
+              | ansible.builtin.human_readable | ansible.builtin.regex_replace(' ', '') }}"
+
+        - name: Show resize information
+          ansible.builtin.debug:
+            msg: "Shrinking {{ bigboot_shrink_target }} from \
+              {{ bigboot_shrink_target_info.size_total | ansible.builtin.human_readable }} to \
+              {{ shrink_lv_volume_size[:-1] | ansible.builtin.regex_replace('^(\\d+)\\.\\d+(\\w).*', '\\1\\2') }} \
+              to expand /boot partition by {{ bigboot_size }}."
+
+        - 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_shrink_target }}"
+                size: "{{ shrink_lv_volume_size[:-1] \
+                  | ansible.builtin.regex_replace('^(\\d+)\\.\\d+(\\w).*', '\\1\\2') }}"
+
+        - name: Execute Bigboot role to resize /boot
+          ansible.builtin.import_role:
+            name: infra.lvm_snapshots.bigboot

group_vars/all

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+---
+# We use padding just to ensure that there's available
+# space to expand /boot to.
+#
+# By default the value is 1.10, or 10%
+bigboot_shrink_padding: 1.10