ansible_plays/shrink_lv
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cleanup

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This commit is contained in:
Chris Hammer 2024-03-26 15:50:22 -04:00
parent 56d5266dc1
commit f6d129a593
9 changed files with 30 additions and 418 deletions
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17
.unused_requirements.yml
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---
roles: []
collections:
# RedHat COP - infra.lvm_snapshots
- name: infra.lvm_snapshots
source: https://github.com/redhat-cop/infra.lvm_snapshots.git
type: git
version: main
# Galaxy Collections
- name: community.general
- name: ansible.posix
...

46
bigboot-op.yml
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---
- name: Capture boot and logical volume information
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: Capture logical volume information
ansible.builtin.import_tasks: tasks/capture_lv_device_details.yml
- name: Perform a ReaR backup if any disk modifications are to be made
ansible.builtin.import_playbook: rhc.rear.rear_backup
when:
- bigboot_execute_bigboot | bool
- name: Perform logical volume and boot parition resizing as needed
hosts: all
become: true
gather_facts: true
strategy: free
tasks:
- name: Expand the logical volume to support /boot expansion
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.import_role:
name: infra.lvm_snapshots.bigboot
when: bigboot_execute_bigboot | bool

16
bigboot-standalone.yml
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---
- name: Resize the /boot parition to the desired size
hosts: all
become: true
gather_facts: true
vars:
bigboot_size: "{{ bigboot_new_size | default('') }}"
roles:
- infra.lvm_snapshots.bigboot
...

34
bigboot.yml
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@ -1,5 +1,5 @@
---
- name: Resize the /boot parition to the desired size
- name: Capture boot and logical volume information
hosts: all
become: true
gather_facts: true
@ -8,13 +8,39 @@
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.yml
- name: Capture logical volume information
ansible.builtin.import_tasks: tasks/capture_lv_device_details.yml
- name: Perform a ReaR backup if any disk modifications are to be made
ansible.builtin.import_playbook: rhc.rear.rear_backup
when:
- bigboot_execute_bigboot | bool
- name: Perform logical volume and boot parition resizing as needed
hosts: all
become: true
gather_facts: true
strategy: free
tasks:
- name: Expand the logical volume to support /boot expansion
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:
ansible.builtin.import_role:
name: infra.lvm_snapshots.bigboot
when: bigboot_execute_bigboot | bool

86
preflight.yml
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---
- name: Create VG and LVOL for shrink_lv testing
hosts: all
become: true
gather_facts: true
vars:
__part_size: 80GB
__partition_devices:
# - /dev/sdb
# - /dev/sdc
- /dev/sdd
- /dev/sde
__vg_name : test-vg02
__lv_name : test-lv02
__lv_size : 120g
__lv_mount : "/lvol/{{ __lv_name }}"
__lv_fstype : ext4
tasks:
- name: Debug __partition_devices
ansible.builtin.debug:
msg:
- "{{ __partition_devices }}"
- "{{ __partition_devices | join(',') }}"
- "{{ __partition_devices | \
map('regex_replace', '(?P<device>sd.*)', '\\g<device>' + '1', multiline=True) }}"
verbosity: 1
- name: Install LVM2
ansible.builtin.package:
name : lvm2
state : present
- name: Create partitions on all drives
community.general.parted:
device : "{{ item }}"
number : 1
flags : ['lvm']
state : present
part_end : "{{ __part_size }}"
loop: "{{ __partition_devices }}"
- name: Create VG
community.general.lvg:
vg : "{{ __vg_name }}"
pvs : "{{ __partition_devices | \
map('regex_replace', '(?P<device>sd.*)', '\\g<device>' + '1', multiline=True) }}"
- name: Create LV
community.general.lvol:
vg : "{{ __vg_name }}"
lv : "{{ __lv_name }}"
size : "{{ __lv_size }}"
force : true
- name: Create lvol mount point
ansible.builtin.file:
path : "{{ __lv_mount }}"
state : directory
mode : "0755"
- name: Create filesystem on {{ __lv_name }}
community.general.filesystem:
dev : "/dev/{{ __vg_name }}/{{ __lv_name }}"
fstype : "{{ __lv_fstype }}"
- name: Mount {{ __lv_mount }}
ansible.posix.mount:
path : "{{ __lv_mount }}"
src : "/dev/{{ __vg_name }}/{{ __lv_name }}"
fstype : "{{ __lv_fstype }}"
state : mounted
...

18
shrink_lv.yml
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---
- name: Shrink specific logical volume to given size
hosts: all
become: true
gather_facts: true
vars:
shrink_lv_devices:
- device: "{{ shrink_lv_logical_volume | default('') }}"
size: "{{ shrink_lv_volume_size | default('') }}"
roles:
- infra.lvm_snapshots.shrink_lv
...

76
tasks/bigboot_manage_lv-noop.yml
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---
- 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

76
tasks/bigboot_manage_lv-op.yml
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@ -1,76 +0,0 @@
---
- 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

79
tasks/bigboot_manage_lv.yml
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@ -1,79 +0,0 @@
---
- 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: 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 }}"