afaadb53ff
In some cases it might be required to supply extra kernel options through GRUB modification. Good example of that is enablement of hugepages [1]. Adding variable `openstack_host_grub_options` should allow to manage GRUB-related options reliably and out-of-the-box. [1] https://docs.openstack.org/nova/latest/admin/huge-pages.html#enabling-huge-pages-on-the-host Change-Id: I148ed1760d841dd99bc1e075b6200d6d7e835530 Signed-off-by: Dmitriy Rabotyagov <dmitriy.rabotyagov@cleura.com>
61 lines
2.4 KiB
YAML
61 lines
2.4 KiB
YAML
---
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# Copyright 2025, Cleura AB.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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- name: Fetch current GRUB parameters
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ansible.builtin.shell: . /etc/default/grub && echo ${GRUB_CMDLINE_LINUX_DEFAULT}
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register: _openstack_grub_default
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changed_when: false
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- name: Update GRUB options
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ansible.builtin.lineinfile:
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path: /etc/default/grub
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regex: '^GRUB_CMDLINE_LINUX_DEFAULT='
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line: 'GRUB_CMDLINE_LINUX_DEFAULT="{{ _openstack_resulting_grub_record }}"'
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backup: true
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mode: '0644'
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owner: root
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group: root
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notify:
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- Update GRUB
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vars:
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# Create list of dicts from the parsed grub parameters, ie:
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# [{'key': 'console', 'value': 'tty0'}]
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_openstack_current_grub: >-
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{{
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_openstack_grub_default.stdout | split(' ') | map('split', '=') | map('zip', ['key', 'value']) | map('map', 'reverse') | map('community.general.dict')
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}}
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# Fetch list of user-provided records which have `state: absent`
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_openstack_absent_grub_records: >-
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{{
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openstack_host_custom_grub_options | selectattr('state', 'defined') | selectattr('state', 'eq', 'absent') | ansible.utils.remove_keys(target='state')
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}}
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# Remove records which should be removed from the list
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_openstack_filtered_custom_grub: >-
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{{
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openstack_host_custom_grub_options | selectattr('state', 'defined') | rejectattr('state', 'eq', 'absent') +
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openstack_host_custom_grub_options | selectattr('state', 'undefined')
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}}
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# Combine the result back from dict to GRUB parameters
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_openstack_resulting_grub_record: |-
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{% set grub = [] %}
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{% for record in (_openstack_current_grub + _openstack_filtered_custom_grub) | unique | reject('in', _openstack_absent_grub_records) %}
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{% if 'value' in record %}
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{% set _ = grub.append(record['key'] ~ '=' ~ record['value']) %}
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{% else %}
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{% set _ = grub.append(record['key']) %}
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{% endif %}
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{% endfor %}
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{{ grub | join(' ') }}
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