Files
Ansible-Bootstrap/roles/configuration/tasks/encryption.yml

370 lines
14 KiB
YAML

---
- name: Configure disk encryption
when: partitioning_luks_enabled | default(luks_enabled | default(false)) | bool
vars:
configuration_luks_passphrase_effective: >-
{{ (partitioning_luks_passphrase | default(luks_passphrase | default(''))) | string }}
block:
- name: Set LUKS configuration facts
vars:
configuration_luks_mapper_name_value: >-
{{
partitioning_luks_mapper_name
| default(luks_mapper_name | default('SYSTEM_DECRYPTED'))
}}
configuration_luks_device_value: >-
{{
partitioning_luks_device
| default(
install_drive
~ (
partitioning_root_partition_suffix
| default(partitioning_main_partition_suffix | default(2))
| string
)
)
}}
configuration_luks_tpm2_pcrs_raw: >-
{{ partitioning_luks_tpm2_pcrs | default(luks_tpm2_pcrs | default('')) }}
configuration_luks_tpm2_pcrs_effective_value: >-
{{
(
configuration_luks_tpm2_pcrs_raw
if configuration_luks_tpm2_pcrs_raw is string
else (configuration_luks_tpm2_pcrs_raw | map('string') | join('+'))
)
| string
| replace(',', '+')
| regex_replace('\\s+', '')
| regex_replace('^\\+|\\+$', '')
}}
ansible.builtin.set_fact:
configuration_luks_mapper_name: "{{ configuration_luks_mapper_name_value }}"
configuration_luks_uuid: "{{ partitioning_luks_uuid | default('') }}"
configuration_luks_device: "{{ configuration_luks_device_value }}"
configuration_luks_options: >-
{{ partitioning_luks_options | default(luks_options | default('discard,tries=3')) }}
configuration_luks_auto_method: >-
{{
(partitioning_luks_auto_decrypt | default(luks_auto_decrypt | default(true)) | bool)
| ternary(
partitioning_luks_auto_decrypt_method | default(luks_auto_decrypt_method | default('tpm2')),
'manual'
)
}}
configuration_luks_tpm2_device: >-
{{ partitioning_luks_tpm2_device | default(luks_tpm2_device | default('auto')) }}
configuration_luks_tpm2_pcrs: "{{ configuration_luks_tpm2_pcrs_raw }}"
configuration_luks_tpm2_pcrs_effective: "{{ configuration_luks_tpm2_pcrs_effective_value }}"
configuration_luks_keyfile_path: >-
/etc/cryptsetup-keys.d/{{ configuration_luks_mapper_name_value }}.key
changed_when: false
- name: Validate LUKS UUID is available
ansible.builtin.assert:
that:
- configuration_luks_uuid | length > 0
fail_msg: LUKS UUID not available. Ensure partitioning ran before configuration.
- name: Validate LUKS passphrase for auto-decrypt
when: configuration_luks_auto_method in ['tpm2', 'keyfile']
ansible.builtin.assert:
that:
- configuration_luks_passphrase_effective | length > 0
fail_msg: luks_passphrase (or partitioning_luks_passphrase) must be set for LUKS auto-decrypt.
no_log: true
- name: Enroll TPM2 for LUKS
when: configuration_luks_auto_method == 'tpm2'
ansible.builtin.include_tasks: encryption/tpm2.yml
- name: Configure LUKS keyfile auto-decrypt
when: configuration_luks_auto_method == 'keyfile'
ansible.builtin.include_tasks: encryption/keyfile.yml
- name: Build LUKS parameters
vars:
configuration_luks_keyfile_in_use_value: "{{ configuration_luks_auto_method == 'keyfile' }}"
configuration_luks_option_list_value: >-
{{
(configuration_luks_options | trim).split(',')
if configuration_luks_options | trim | length > 0
else []
}}
configuration_luks_tpm2_option_list_value: >-
{{
(configuration_luks_auto_method == 'tpm2')
| ternary(
['tpm2-device=' + configuration_luks_tpm2_device]
+ (['tpm2-pcrs=' + configuration_luks_tpm2_pcrs_effective]
if configuration_luks_tpm2_pcrs_effective | length > 0 else []),
[]
)
}}
configuration_luks_crypttab_keyfile_value: >-
{{ configuration_luks_keyfile_path if configuration_luks_keyfile_in_use_value else 'none' }}
configuration_luks_crypttab_options_value: >-
{{
(['luks'] + configuration_luks_option_list_value + configuration_luks_tpm2_option_list_value)
| join(',')
}}
configuration_luks_rd_options_value: >-
{{ (configuration_luks_option_list_value + configuration_luks_tpm2_option_list_value) | join(',') }}
configuration_luks_kernel_args_value: >-
{{
(
['rd.luks.name=' + configuration_luks_uuid + '=' + configuration_luks_mapper_name]
+ (
['rd.luks.options=' + configuration_luks_uuid + '=' + configuration_luks_rd_options_value]
if configuration_luks_rd_options_value | length > 0 else []
)
+ (
['rd.luks.key=' + configuration_luks_uuid + '=' + configuration_luks_keyfile_path]
if configuration_luks_keyfile_in_use_value else []
)
) | join(' ')
}}
ansible.builtin.set_fact:
configuration_luks_keyfile_in_use: "{{ configuration_luks_keyfile_in_use_value }}"
configuration_luks_option_list: "{{ configuration_luks_option_list_value }}"
configuration_luks_tpm2_option_list: "{{ configuration_luks_tpm2_option_list_value }}"
configuration_luks_crypttab_keyfile: "{{ configuration_luks_crypttab_keyfile_value }}"
configuration_luks_crypttab_options: "{{ configuration_luks_crypttab_options_value }}"
configuration_luks_rd_options: "{{ configuration_luks_rd_options_value }}"
configuration_luks_kernel_args: "{{ configuration_luks_kernel_args_value }}"
- name: Remove LUKS keyfile if TPM2 auto-decrypt is active
when: configuration_luks_auto_method == 'tpm2'
ansible.builtin.file:
path: /mnt{{ configuration_luks_keyfile_path }}
state: absent
- name: Write crypttab entry
ansible.builtin.lineinfile:
path: /mnt/etc/crypttab
regexp: "^{{ configuration_luks_mapper_name }}\\s"
line: >-
{{ configuration_luks_mapper_name }} UUID={{ configuration_luks_uuid }}
{{ configuration_luks_crypttab_keyfile }} {{ configuration_luks_crypttab_options }}
create: true
mode: "0600"
- name: Ensure keyfile pattern for initramfs-tools
when:
- is_debian | default(false)
- configuration_luks_keyfile_in_use
ansible.builtin.lineinfile:
path: /mnt/etc/cryptsetup-initramfs/conf-hook
regexp: '^KEYFILE_PATTERN='
line: 'KEYFILE_PATTERN=/etc/cryptsetup-keys.d/*.key'
create: true
mode: "0644"
- name: Configure mkinitcpio hooks for LUKS
when: os | lower == 'archlinux'
ansible.builtin.lineinfile:
path: /mnt/etc/mkinitcpio.conf
regexp: '^HOOKS='
line: >-
HOOKS=(base systemd autodetect microcode modconf kms keyboard sd-vconsole
block sd-encrypt lvm2 filesystems fsck)
- name: Read mkinitcpio configuration
when: os | lower == 'archlinux'
ansible.builtin.slurp:
src: /mnt/etc/mkinitcpio.conf
register: configuration_mkinitcpio_slurp
- name: Build mkinitcpio FILES list
when: os | lower == 'archlinux'
vars:
configuration_mkinitcpio_files_list_value: >-
{{
(
configuration_mkinitcpio_slurp.content | b64decode
| regex_findall('^FILES=\\(([^)]*)\\)', multiline=True)
| default([])
| first
| default('')
).split()
}}
configuration_mkinitcpio_files_list_new_value: >-
{{
(
(configuration_mkinitcpio_files_list_value + [configuration_luks_keyfile_path])
if configuration_luks_keyfile_in_use
else (
configuration_mkinitcpio_files_list_value
| reject('equalto', configuration_luks_keyfile_path)
| list
)
)
| unique
}}
ansible.builtin.set_fact:
configuration_mkinitcpio_files_list_new: "{{ configuration_mkinitcpio_files_list_new_value }}"
- name: Configure mkinitcpio FILES list
when: os | lower == 'archlinux'
ansible.builtin.lineinfile:
path: /mnt/etc/mkinitcpio.conf
regexp: '^FILES='
line: >-
FILES=({{
configuration_mkinitcpio_files_list_new | join(' ')
}})
- name: Ensure dracut config directory exists
when: is_rhel | default(false)
ansible.builtin.file:
path: /mnt/etc/dracut.conf.d
state: directory
mode: "0755"
- name: Configure dracut for LUKS
when: is_rhel | default(false)
ansible.builtin.copy:
dest: /mnt/etc/dracut.conf.d/crypt.conf
content: |
add_dracutmodules+=" crypt "
{% if configuration_luks_keyfile_in_use %}
install_items+=" {{ configuration_luks_keyfile_path }} "
{% endif %}
mode: "0644"
- name: Read kernel cmdline defaults
when: is_rhel | default(false)
ansible.builtin.slurp:
src: /mnt/etc/kernel/cmdline
register: configuration_kernel_cmdline_slurp
- name: Build kernel cmdline with LUKS args
when: is_rhel | default(false)
vars:
configuration_kernel_cmdline_current_value: >-
{{ configuration_kernel_cmdline_slurp.content | b64decode | trim }}
configuration_kernel_cmdline_list_value: >-
{{
configuration_kernel_cmdline_current_value.split()
if configuration_kernel_cmdline_current_value | length > 0 else []
}}
configuration_kernel_cmdline_filtered_value: >-
{{
configuration_kernel_cmdline_list_value
| reject('match', '^rd\\.luks\\.(name|options|key)=' ~ configuration_luks_uuid ~ '=')
| list
}}
configuration_kernel_cmdline_new_value: >-
{{
(configuration_kernel_cmdline_filtered_value + configuration_luks_kernel_args.split())
| unique
| join(' ')
}}
ansible.builtin.set_fact:
configuration_kernel_cmdline_new: "{{ configuration_kernel_cmdline_new_value }}"
changed_when: false
- name: Write kernel cmdline with LUKS args
when: is_rhel | default(false)
ansible.builtin.copy:
dest: /mnt/etc/kernel/cmdline
mode: "0644"
content: "{{ configuration_kernel_cmdline_new }}\n"
- name: Find BLS entries
when: is_rhel | default(false)
ansible.builtin.find:
paths: /mnt/boot/loader/entries
patterns: "*.conf"
register: configuration_kernel_bls_entries
changed_when: false
- name: Update BLS options with LUKS args
when:
- is_rhel | default(false)
- configuration_kernel_bls_entries.files | length > 0
ansible.builtin.lineinfile:
path: "{{ item.path }}"
regexp: '^options '
line: "options {{ configuration_kernel_cmdline_new }}"
loop: "{{ configuration_kernel_bls_entries.files }}"
loop_control:
label: "{{ item.path }}"
- name: Read grub defaults
when: not is_rhel | default(false)
ansible.builtin.slurp:
src: /mnt/etc/default/grub
register: configuration_grub_slurp
- name: Build grub command lines with LUKS args
when: not is_rhel | default(false)
vars:
configuration_grub_content_value: "{{ configuration_grub_slurp.content | b64decode }}"
configuration_grub_cmdline_linux_value: >-
{{
configuration_grub_content_value
| regex_findall('^GRUB_CMDLINE_LINUX=\"(.*)\"', multiline=True)
| default([])
| first
| default('')
}}
configuration_grub_cmdline_default_value: >-
{{
configuration_grub_content_value
| regex_findall('^GRUB_CMDLINE_LINUX_DEFAULT=\"(.*)\"', multiline=True)
| default([])
| first
| default('')
}}
configuration_grub_cmdline_linux_list_value: >-
{{
configuration_grub_cmdline_linux_value.split()
if configuration_grub_cmdline_linux_value | length > 0 else []
}}
configuration_grub_cmdline_default_list_value: >-
{{
configuration_grub_cmdline_default_value.split()
if configuration_grub_cmdline_default_value | length > 0 else []
}}
configuration_luks_kernel_args_list_value: "{{ configuration_luks_kernel_args.split() }}"
configuration_grub_cmdline_linux_new_value: >-
{{
(
(
configuration_grub_cmdline_linux_list_value
| reject('match', '^rd\\.luks\\.(name|options|key)=' ~ configuration_luks_uuid ~ '=')
| list
)
+ configuration_luks_kernel_args_list_value
)
| unique
| join(' ')
}}
configuration_grub_cmdline_default_new_value: >-
{{
(
(
configuration_grub_cmdline_default_list_value
| reject('match', '^rd\\.luks\\.(name|options|key)=' ~ configuration_luks_uuid ~ '=')
| list
)
+ configuration_luks_kernel_args_list_value
)
| unique
| join(' ')
}}
ansible.builtin.set_fact:
configuration_grub_content: "{{ configuration_grub_content_value }}"
configuration_grub_cmdline_linux: "{{ configuration_grub_cmdline_linux_value }}"
configuration_grub_cmdline_default: "{{ configuration_grub_cmdline_default_value }}"
configuration_grub_cmdline_linux_new: "{{ configuration_grub_cmdline_linux_new_value }}"
configuration_grub_cmdline_default_new: "{{ configuration_grub_cmdline_default_new_value }}"
- name: Update GRUB_CMDLINE_LINUX_DEFAULT for LUKS
when: not is_rhel | default(false)
ansible.builtin.lineinfile:
path: /mnt/etc/default/grub
regexp: '^GRUB_CMDLINE_LINUX_DEFAULT='
line: 'GRUB_CMDLINE_LINUX_DEFAULT="{{ configuration_grub_cmdline_default_new }}"'