roles/install_gentoo/tasks/disks.yml


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---
- name: disks
  tags:
    - disks
  block:
  - name: check for mounted disk
    # Not perfect.
    ansible.builtin.command: "grep '{{ item }}' /proc/mounts"
    failed_when: false
    changed_when: false
    register: check_mounted_disk
    check_mode: no
    loop:
      - /dev/nvme0n1
      - /dev/nvme1n1
  
  - name: debug
    ansible.builtin.debug:
      msg: "{{ check_mounted_disk }}"
  
  - name: abort if disk mounted
    ansible.builtin.fail:
      msg: "Aborting install due to {{ item }} being mounted"
    when: item.rc == 0
    loop: "{{ check_mounted_disk.results }}"
  
  - name: write partition layout file
    ansible.builtin.copy:
      dest: /tmp/partition.sfdisk
      # RootFS on LVM
      content: |
        label: gpt
        p1 : start=1MiB, size=63MiB, type=uefi, name=EFI
        p2 : start=64MiB, size=448MiB, type=raid, name=BOOT
        p3 : start=512MiB, size=+, type=lvm, name=LVM
    tags:
      - partition
    
  - name: partition disks
    ansible.builtin.shell: "/usr/sbin/sfdisk {{ item }} </tmp/partition.sfdisk"
    loop:
      - /dev/nvme0n1
      - /dev/nvme1n1
    tags:
      - partition
  
  - name: fact md1 devices
    ansible.builtin.set_fact:
      md1_dev: "{{ ansible_loop.allitems|join(' ') }}"
    loop:
      - /dev/nvme0n1p1
      - /dev/nvme1n1p1
    loop_control:
      extended: true
    tags:
      - mdadm
  
  - name: fact md2 devices
    ansible.builtin.set_fact:
      md2_dev: "{{ ansible_loop.allitems|join(' ') }}"
    loop:
      - /dev/nvme0n1p2
      - /dev/nvme1n1p2
    loop_control:
      extended: true
    tags:
      - mdadm
  
  - name: mdadm p1
    ansible.builtin.command: "mdadm --create -e 1.0 /dev/md1 --level=raid1 -n 2 {{ md1_dev }}"
    tags:
      - mdadm
  
  - name: mdadm p2
    ansible.builtin.command: "mdadm --create -e 1.0 /dev/md2 --level=raid1 -n 2 {{ md2_dev }}"
    tags:
      - mdadm
  
  - name: format p1/mkfs
    ansible.builtin.command: "mkfs.fat -F 16 -n EFI {{ item }}"
    tags:
      - mkfs
    loop:
      - /dev/md1
  
  - name: format p2/mkfs
    ansible.builtin.command: "mkfs.ext4 -T floppy,news -L BOOT {{ item }}"
    loop:
      - /dev/md2
    tags:
      - mkfs
  
  - name: format p3/pvcreate
    ansible.builtin.command: "pvcreate {{ ansible_loop.allitems|join(' ') }}"
    loop_control:
      extended: true
    loop:
      - /dev/nvme0n1p3
      - /dev/nvme1n1p3
    tags:
      - lvm
      - pvcreate
  
  - name: fact vgcreate PVs
    ansible.builtin.set_fact:
      pvs: "{{ ansible_loop.allitems|join(' ') }}"
    loop:
      - /dev/nvme0n1p3
      - /dev/nvme1n1p3
    loop_control:
      extended: true
    tags:
      - lvm
      - vgcreate
  
  - name: fact vgs
    ansible.builtin.set_fact:
      vgs: "{{ hostname }}"
    tags:
      - disk
      - mount
      - lvm
  
  - name: vgcreate
    ansible.builtin.command: "vgcreate {{ hostname }} {{ pvs }}"
    tags:
      - lvm
      - vgcreate
  
  - name: lvcreate root
    ansible.builtin.command: "lvcreate --type raid1 -L 30g --name rootfs {{ vgs }}"
    tags:
      - lvm
      - lvcreate
  
  - name: mkfs root
    ansible.builtin.command: "mkfs.ext4 -T floppy,news -L ROOTFS /dev/{{ vgs }}/rootfs"
    tags:
      - rootfs
      - mkfs