---
# Copyright 2017, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Check Kernel Version
  ansible.builtin.fail:
    msg: >
      Wrong kernel Version found
      [ {{ ansible_facts['kernel'] }} < {{ openstack_host_required_kernel }} ]
      Resolve this issue before continuing.
  when:
    - ansible_facts['kernel'] is version(openstack_host_required_kernel, '<')

- name: Install distro packages for bare metal nodes
  ansible.builtin.package:
    name: "{{ openstack_host_metal_distro_packages }}"
    state: "{{ openstack_hosts_package_state }}"
  register: install_packages
  until: install_packages is success
  retries: 5
  delay: 2

- name: Install user defined extra distro packages for bare metal nodes
  ansible.builtin.package:
    name: "{{ openstack_host_extra_metal_distro_packages }}"
    state: "{{ openstack_hosts_package_state }}"
  when:
    - openstack_host_extra_metal_distro_packages | length > 0
  register: install_packages
  until: install_packages is success
  retries: 5
  delay: 2

- name: Check how kernel modules are implemented (statically builtin, dynamic, not set)
  ansible.builtin.slurp:
    src: "/boot/config-{{ ansible_facts['kernel'] }}"
  register: modules
  when:
    - openstack_host_specific_kernel_modules | length > 0

- name: Fail fast if we can't load a module
  ansible.builtin.fail:
    msg: "{{ item.pattern }} is not set"
  with_items: "{{ openstack_host_specific_kernel_modules }}"
  when:
    - item.pattern is defined
    - (modules.content | b64decode).find(item.pattern + ' is not set') != -1

- name: "Load kernel module(s)"
  vars:
    _kernel_module_state: "{{ (item.condition | default(true)) | ternary('present', 'absent') }}"
  community.general.modprobe:
    name: "{{ item.name }}"
    state: "{{ _kernel_module_state }}"
    persistent: "{{ _kernel_module_state }}"
    params: "{{ item.params | default(omit) }}"
  with_items: "{{ openstack_host_kernel_modules + openstack_host_specific_kernel_modules }}"
  when:
    - item.name | length > 0
    - item.pattern is undefined or (item.pattern is defined and (modules.content | b64decode).find(item.pattern + '=m') != -1)
  notify:
    - Update initramfs

- name: Blacklist kernel modules
  ansible.builtin.copy:
    content: |-
      {% for module in openstack_host_blacklist_kernel_modules %}
      blacklist {{ module }}
      {% endfor %}
    dest: /etc/modprobe.d/blacklist-openstack-ansible.conf
    mode: "0644"
    owner: root
    group: root
  notify:
    - Update initramfs

# TODO: Remove after 2026.1 release
- name: Clean-up ex-default modules location
  ansible.builtin.lineinfile:
    path: /etc/modules
    line: "{{ item.name }}"
    state: absent
  loop: "{{ openstack_host_kernel_modules + openstack_host_specific_kernel_modules }}"
  when:
    - ansible_facts['os_family'] | lower == 'debian'
    - item.name | length > 0

# TODO: Remove after 2026.1 release
- name: Remove ex-default modules location
  ansible.builtin.file:
    path: /etc/modules-load.d/openstack-ansible.conf
    state: absent

- name: Adding new system tuning
  ansible.posix.sysctl:
    name: "{{ item.key }}"
    value: "{{ item.value }}"
    sysctl_set: "{{ item.set | default('yes') }}"
    sysctl_file: "{{ openstack_hosts_sysctl_file }}"
    state: "{{ item.state | default('present') }}"
    reload: false
  with_items: "{{ openstack_kernel_options + openstack_user_kernel_options }}"
  failed_when: false

- name: Configure GRUB
  ansible.builtin.include_tasks: openstack_grub.yml
  when:
    - openstack_host_custom_grub_options | length > 0

- name: Configure sysstat
  ansible.builtin.include_tasks: openstack_sysstat.yml
  when:
    - openstack_host_sysstat_enabled | bool

- name: Create a directory to hold systemd journals on disk
  ansible.builtin.file:
    path: /var/log/journal
    state: directory
    owner: root
    group: systemd-journal
    mode: "2755"
  register: journald_directory
  when:
    - openstack_host_keep_journals | bool

# NOTE(mhayden): The linter is skipped here since the command does not create
# any files. The command ensures that proper permissions and SELinux contests
# are set.
- name: Create tmpfiles structure in journald directory
  command: systemd-tmpfiles --create --prefix /var/log/journal
  when:
    - journald_directory is changed
    - openstack_host_keep_journals | bool
  notify:
    - Restart systemd-journald
  tags:
    - skip_ansible_lint