Cloudpods/ocboot/onecloud/roles/utils/kernel-check/tasks/main.yml

---
- name: Define kernel regex
  set_fact: kernel_regex="\.yn[0-9]{8}\."

- name: test if nbd is supported
  environment:
    PATH: $PATH:/usr/sbin:/sbin
  shell: modprobe nbd
  register: nbd_status
  ignore_errors: yes
  no_log: true
  failed_when: false

- name: nbd facts
  set_fact:
    nbd_ok: true
  when: nbd_status.rc == 0

- name: Is Cloud kernel running
  shell: |
    uname -r | grep -E "{{ kernel_regex }}"
  register: is_yunion_kernel_running
  changed_when: false
  failed_when: false

- name: Is cloud kernel installed
  shell: |
    if rpm --version &>/dev/null; then
      count=$(rpm -qa |grep kernel |grep -E "{{ kernel_regex }}" |wc -l || :)
    elif dpkg --version &>/dev/null; then
      count=$(dpkg -l |grep kernel |grep -E "{{ kernel_regex }}" |wc -l || :)
    fi
    [[ "$count" -ge 1 ]]
  args:
    executable: /bin/bash
  register: is_yunion_kernel_installed
  changed_when: false
  failed_when: false

- name: install customized kernel
  include_tasks: "{{ ansible_distribution | lower }}-{{ ansible_distribution_major_version |lower }}-{{ ansible_architecture }}.yml"
  when:
  - nbd_ok|default(false)|bool == false
  - is_yunion_kernel_installed.rc != 0

- name: Check /proc/cmdline for huge pages configuration
  command: "grep -w 'hugepagesz=1G' /proc/cmdline"
  register: hugepagesz
  changed_when: false
  check_mode: true
  when:
  - ansible_architecture == 'x86_64'

- name: Check /proc/cmdline for huge pages configuration
  command: "grep -w 'default_hugepagesz=1G' /proc/cmdline"
  register: default_hugepagesz
  changed_when: false
  check_mode: true
  when:
  - ansible_architecture == 'x86_64'

- name: Check if oc-hugetlb-gigantic-pages.service is active
  shell:
    cmd: systemctl is-active oc-hugetlb-gigantic-pages
  register: hugepage_service_status
  failed_when: false
  when:
  - ansible_architecture == 'x86_64'

- name: set default fact to_init_hugetlb
  set_fact:
    hugetlb_is_ready: false
  when:
  - ansible_architecture == 'x86_64'

- name: Set hugetlb fact if conditions are met
  set_fact:
    hugetlb_is_ready: true
  when:
  - ansible_architecture == 'x86_64'
  - hugepagesz.rc == 0
  - default_hugepagesz.rc == 0
  - hugepage_service_status.rc == 0

# setup hugetlb
- name: Setup hugepage
  include_tasks: 'hugetlb.yml'
  when:
  - ansible_architecture == 'x86_64'
  - hugetlb_is_ready == false

- name: SSH Reboot system if hugetlb conf is updated
  reboot:
    reboot_timeout:  900 # 15 mins
    connect_timeout: 900 # 15 mins
  become: yes
  when:
  - ansible_architecture == 'x86_64'
  - hugetlb_is_ready == false
  - is_controller_node is not defined or is_controller_node|default(false)|bool == false
  - ansible_connection == "ssh"

- name: Local Reboot system if hugetlb conf is updated
  command: reboot
  become: yes
  when:
  - ansible_architecture == 'x86_64'
  - hugetlb_is_ready == false
  - is_controller_node is not defined or is_controller_node|default(false)|bool == false
  - ansible_connection == "local"