---
- name: Disable kernel installation from base repository
  become: true
  lineinfile:
    path: /etc/yum.repos.d/CentOS-Base.repo
    line: exclude=kernel*

- name: Enable Centos-plus repository
  become: true
  lineinfile:
    path: /etc/yum.repos.d/CentOS-centosplus.repo
    regexp: "#?enabled=(0|1)"
    line: enabled=1

- name: Enable kernel installation from plus repository
  become: true
  lineinfile:
    path: /etc/yum.repos.d/CentOS-centosplus.repo
    line: includepkgs=kernel*

# Note that the order of the next four tasks is very specific and intentional
# See this wiki page: https://plone.lucidsolutions.co.nz/linux/centos/7/install-centos-plus-kernel-kernel-plus/view
- name: Install kernel-plus
  become: true
  dnf:
    name:
      - kernel-plus
      - kernel-plus-devel
    state: latest
  register: _dnf_kernel_plus

- name: Uninstall kernel-tools
  become: true
  dnf:
    name:
      - kernel-tools
      - kernel-tools-libs
    state: absent

- name: Install kernel-plus-tools
  become: true
  dnf:
    name:
      - kernel-plus-tools
      - kernel-plus-tools-libs
    state: latest

- name: Reboot into new kernel
  become: true
  when: _dnf_kernel_plus.changed is true and "centos.plus" not in ansible_kernel
  reboot:
    reboot_timeout: 3600

- name: Uninstall kernel
  become: true
  dnf:
    name:
      - kernel
      - kernel-devel
      - kernel-core
      - kernel-modules
    state: absent