Files

116 lines
4.0 KiB
YAML

---
- name: Configure sbctl Secure Boot
block:
- name: Create Secure Boot signing keys
ansible.builtin.command: "{{ chroot_command }} sbctl create-keys"
register: _sbctl_create_keys
changed_when: _sbctl_create_keys.rc == 0
failed_when:
- _sbctl_create_keys.rc != 0
- "'already exists' not in (_sbctl_create_keys.stderr | default(''))"
- name: Enroll Secure Boot keys in firmware
ansible.builtin.command: "{{ chroot_command }} sbctl enroll-keys --microsoft"
register: _sbctl_enroll
changed_when: _sbctl_enroll.rc == 0
failed_when: false
- name: Install first-boot enrollment service if chroot enrollment failed
when: _sbctl_enroll.rc | default(1) != 0
block:
- name: Create first-boot sbctl enrollment service
ansible.builtin.copy:
dest: /mnt/etc/systemd/system/sbctl-enroll.service
mode: "0644"
content: |
[Unit]
Description=Enroll Secure Boot keys via sbctl
ConditionPathExists=!/var/lib/sbctl/.enrolled
After=local-fs.target
[Service]
Type=oneshot
ExecStart=/usr/bin/sbctl enroll-keys --microsoft
ExecStartPost=/usr/bin/touch /var/lib/sbctl/.enrolled
RemainAfterExit=yes
[Install]
WantedBy=multi-user.target
- name: Enable first-boot enrollment service
ansible.builtin.command: "{{ chroot_command }} systemctl enable sbctl-enroll.service"
register: _sbctl_service_enable
changed_when: _sbctl_service_enable.rc == 0
- name: Find kernel images to sign
ansible.builtin.find:
paths: /mnt/boot
patterns: "vmlinuz-*"
file_type: file
register: _sbctl_kernel_images
- name: Sign kernel images
ansible.builtin.command: >-
{{ chroot_command }} sbctl sign -s {{ item.path | regex_replace('^/mnt', '') }}
loop: "{{ _sbctl_kernel_images.files }}"
loop_control:
label: "{{ item.path | basename }}"
register: _sbctl_sign_kernel
changed_when: _sbctl_sign_kernel.rc == 0
failed_when: false
- name: Sign GRUB EFI binary
vars:
_grub_efi_path: "{{ partitioning_efi_mountpoint }}/EFI/archlinux/grubx64.efi"
ansible.builtin.command: >-
{{ chroot_command }} sbctl sign -s {{ _grub_efi_path }}
register: _sbctl_sign_grub
changed_when: _sbctl_sign_grub.rc == 0
failed_when: false
- name: Ensure pacman hooks directory exists
ansible.builtin.file:
path: /mnt/etc/pacman.d/hooks
state: directory
mode: "0755"
- name: Install sbctl auto-signing pacman hook
ansible.builtin.copy:
dest: /mnt/etc/pacman.d/hooks/99-sbctl-sign.hook
mode: "0644"
content: |
[Trigger]
Operation = Install
Operation = Upgrade
Type = Path
Target = boot/vmlinuz-*
Target = usr/lib/modules/*/vmlinuz
[Action]
Description = Signing kernel images for Secure Boot...
When = PostTransaction
Exec = /usr/bin/sbctl sign-all
Depends = sbctl
- name: Verify sbctl signing status
ansible.builtin.command: "{{ chroot_command }} sbctl verify"
register: _sbctl_verify
changed_when: false
failed_when: false
- name: Report sbctl Secure Boot status
ansible.builtin.debug:
msg: >-
Secure Boot (sbctl):
Enrollment={{ 'done' if (_sbctl_enroll.rc | default(1)) == 0 else 'deferred to first boot' }}.
{{ _sbctl_verify.stdout | default('Verify not available') }}
rescue:
- name: Secure Boot setup failed
ansible.builtin.debug:
msg: >-
sbctl Secure Boot setup failed.
On VMs make sure the OVMF firmware is in Setup Mode (fresh NVRAM).
On bare metal enter the firmware setup and switch to Setup Mode first.
To recover manually: sbctl create-keys && sbctl enroll-keys --microsoft && sbctl sign-all