upgrade-linux-kernel.yaml

# upgrade kernel
  - name: upgrade kernel step 1
    command: rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

  - name: upgrade kernel step 2
    command: rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
    ignore_errors: yes

  - name: upgrade kernel step 3
    command: yum --enablerepo=elrepo-kernel install -y kernel-lt

  - name: remove old kernel 1
    find:
      path: /boot/
      pattern: '*-3.10.*'
    register: result

  - name: remove old kernel 2
    file:
      path: "{{ item.path }}"
      state: absent
    with_items: "{{ result.files }}"

  - name: update grub
    command: grub2-mkconfig -o /boot/grub2/grub.cfg

  - name: reboot to apply kernel
    shell: sleep 5 && shutdown -r now "Ansible reboot"
    async: 1
    poll: 0
    ignore_errors: yes

  - name: wait for connection
    local_action: wait_for
    args:
      host: "{{ inventory_hostname }}"
      state: started
      port: 22
      delay: 120
      timeout: 480
    vars:
      ansible_become: no