arch installation mostly works with zfsbootmgr

2024-11-20 09:12:19 -06:00 · 2024-11-20 09:12:19 -06:00 · 1444f05d9c
commit 1444f05d9c
19 changed files with 496 additions and 0 deletions
--- a/roles/base/tasks/archinstall/partition.yaml
+++ b/roles/base/tasks/archinstall/partition.yaml
@ -0,0 +1,138 @@
+---
+- name: Get details about rootfs disks
+  community.general.parted:
+    device: "{{ item }}"
+    unit: MiB
+  register: base_root_disks_info
+  loop: "{{ base_root_disks | list }}"
+
+- name: Calculate maximum usable disk space
+  ansible.builtin.set_fact:
+    base_root_usable_mib: "{{ (base_root_disks_info.results | map(attribute='disk.size') | min | int) - 1 }}"
+
+- debug: var=base_root_usable_mib
+
+- name: Calculate disk utilization percentage
+  ansible.builtin.set_fact:
+    base_root_usable_mib: "{{ base_root_usable_mib|int -  ((base_root_usable_mib|float) * (0.01 * (base_root_free_percent|float))) | round(method='floor') | int }}"
+
+- name: Calculate zfs volume size
+  set_fact:
+    base_root_zpool_mib: "{{ base_root_usable_mib|int - fixed_size_partitions|int }}"
+  vars:
+    fixed_size_partitions: "{{ base_root_swap_mib|int + base_root_efi_mib|int }}"
+#
+- name: Calculate partition layouts
+  set_fact:
+    partition_ranges: >-
+      {{
+      (partition_ranges|d([])) + [{
+        'begin': base_root_partitions[:(loop_index|int)] | map(attribute='size_mib') | map('int') | sum(),
+        'end': base_root_partitions[:(loop_index|int+1)] | map(attribute='size_mib') | map('int') | sum(),
+        }]
+      }}
+  vars:
+    loop_index: "{{ item }}"
+    base_root_partitions:
+      - name: efi
+        size_mib: "{{ base_root_efi_mib }}"
+      - name: root
+        size_mib: "{{ base_root_zpool_mib }}"
+      - name: swap
+        size_mib: "{{ base_root_swap_mib }}"
+  with_sequence: start=0 end="{{ base_root_partitions | length - 1}}"
+
+- debug:
+    var: partition_ranges
+
+- name: Initialize partition facts
+  set_fact:
+    base_efi_partitions: []
+    base_root_partitions: []
+    base_swap_partitions: []
+
+- name: Create EFI partition
+  become: true
+  vars:
+    part_index: 0
+  parted:
+    label: gpt
+    unit: MiB
+    name: EFI Boot
+    device: "{{ item.disk.dev }}"
+    number: "{{ part_index + 1 }}"
+    flags: [ boot, esp ]
+    part_start: "{{ [partition_ranges[part_index].begin, 1]|max }}MiB"
+    part_end: "{{ partition_ranges[part_index].end }}MiB"
+    state: present
+    fs_type: fat32
+  loop: "{{ base_root_disks_info.results }}"
+  register: parted_create
+
+- name: Store EFI partition details
+  set_fact:
+    base_efi_partitions: "{{ parted_create.results | map(attribute='disk.dev') | product([1]) | map('join') | list }}"
+
+- name: Create root zvol partition
+  become: true
+  vars:
+    part_index: 1
+  parted:
+    label: gpt
+    unit: MiB
+    name: ArchLinux ZFS Root
+    device: "{{ item.disk.dev }}"
+    number: "{{ part_index + 1 }}"
+    part_start: "{{ partition_ranges[part_index].begin }}MiB"
+    part_end: "{{ partition_ranges[part_index].end }}MiB"
+    state: present
+  loop: "{{ parted_create.results }}"
+  register: parted_create
+
+- name: Store root zvol partition details
+  set_fact:
+    base_root_partitions: "{{ parted_create.results | map(attribute='disk.dev') | product([2]) | map('join') | list }}"
+
+- name: Create swap partition
+  become: true
+  vars:
+    part_index: 2
+  parted:
+    label: gpt
+    unit: MiB
+    device: "{{ item.disk.dev }}"
+    number: "{{ part_index + 1 }}"
+    part_start: "{{ partition_ranges[part_index].begin }}MiB"
+    part_end: "{{ partition_ranges[part_index].end }}MiB"
+    state: present
+    fs_type: linux-swap
+  loop: "{{ parted_create.results }}"
+  register: parted_create
+  when: base_root_swap_mib is defined and base_root_swap_mib > 0
+
+- name: Store swap partition details
+  set_fact:
+    base_swap_partitions: "{{ parted_create.results | map(attribute='disk.dev') | product([3]) | map('join') | list }}"
+  when: base_root_swap_mib is defined and base_root_swap_mib > 0
+
+- name: Analyze resulting partition layouts
+  parted:
+    unit: MiB
+    device: "{{ item }}"
+  register: base_root_disks_info
+  loop: "{{ base_root_disks | list }}"
+
+- name: Collect disk device identifiers
+  shell: "for x in /dev/disk/by-id/*; do echo $x $(realpath $x); done"
+  register: disk_realpaths
+
+- name: Collect disk device identifiers into a base_partitions_by_id dictionary
+  set_fact:
+    base_partitions_by_id: >-
+      {{
+        dict(
+          disk_realpaths.stdout_lines
+          | map('split', ' ')
+          | map('list')
+        )
+      }}