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refactor(partitioning): externalize hardcoded LVM and disk sizing constants to defaults

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Sandwich
2026-02-20 22:26:23 +01:00
parent deb14d2c94
commit 17400fa6ff
2 changed files with 27 additions and 8 deletions
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16
roles/partitioning/defaults/main.yml
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@@ -8,6 +8,22 @@ partitioning_efi_end_mib: "{{ (partitioning_efi_start_mib | int) + (partitioning
partitioning_boot_size_mib: 1024
partitioning_vg_name: sys
partitioning_use_full_disk: true
# LVM logical volume sizing
partitioning_lvm_var_gb: 2
partitioning_lvm_var_log_gb: 2
partitioning_lvm_var_log_audit_gb: 1.5
# Disk overhead subtracted from available space in swap/home calculations
partitioning_disk_overhead_gb: 20
# CIS-required reserved space for /var, /var/log, /var/log/audit, /home
partitioning_cis_reserved_gb: 7.5
# Home allocation: percentage of (disk - overhead), bounded by min/max
partitioning_home_allocation_pct: 0.1
partitioning_home_min_gb: 2
partitioning_home_max_gb: 20
partitioning_separate_boot: >-
{{
(

19
roles/partitioning/tasks/main.yml
View File

@@ -286,7 +286,7 @@
(
4
+ [
(partitioning_disk_size_gb | float) - 20,
(partitioning_disk_size_gb | float) - (partitioning_disk_overhead_gb | float),
0
] | max
)
@@ -311,7 +311,7 @@
(
(partitioning_disk_size_gb | float)
- (partitioning_reserved_gb | float)
- (system_cfg.features.cis.enabled | ternary(7.5, 0))
- (system_cfg.features.cis.enabled | ternary(partitioning_cis_reserved_gb | float, 0))
- partitioning_lvm_extent_reserve_gb
- 4
),
@@ -326,14 +326,14 @@
(
(partitioning_disk_size_gb | float)
- (partitioning_reserved_gb | float)
- (system_cfg.features.cis.enabled | ternary(7.5, 0))
- (system_cfg.features.cis.enabled | ternary(partitioning_cis_reserved_gb | float, 0))
- partitioning_lvm_extent_reserve_gb
- partitioning_lvm_swap_target_limited_gb
) | float
}}
partitioning_lvm_home_gb: >-
{{
([([(((partitioning_disk_size_gb | float) - 20) * 0.1), 2] | max), 20] | min)
([([((partitioning_disk_size_gb | float) - (partitioning_disk_overhead_gb | float)) * (partitioning_home_allocation_pct | float), (partitioning_home_min_gb | float)] | max), (partitioning_home_max_gb | float)] | min)
}}
partitioning_lvm_root_default_gb: >-
{{
@@ -375,7 +375,10 @@
- (partitioning_lvm_swap_gb | float)
- partitioning_lvm_extent_reserve_gb
- (
(partitioning_lvm_home_gb | float) + 5.5
(partitioning_lvm_home_gb | float)
+ (partitioning_lvm_var_gb | float)
+ (partitioning_lvm_var_log_gb | float)
+ (partitioning_lvm_var_log_audit_gb | float)
if system_cfg.features.cis.enabled
else 0
)
@@ -401,9 +404,9 @@
size: "{{ partitioning_lvm_swap_gb | string + 'G' }}"
- lv: home
size: "{{ partitioning_lvm_home_gb | string + 'G' }}"
- { lv: var, size: "2G" }
- { lv: var_log, size: "2G" }
- { lv: var_log_audit, size: "1.5G" }
- { lv: var, size: "{{ partitioning_lvm_var_gb }}G" }
- { lv: var_log, size: "{{ partitioning_lvm_var_log_gb }}G" }
- { lv: var_log_audit, size: "{{ partitioning_lvm_var_log_audit_gb }}G" }
- name: Create filesystems
block: