ansible-playbook 获取 linux内核版本

---
- name: check kubernetes cluster nodes kernel version
  hosts: localhost
  gather_facts: false
  become: true
  tasks:
    - name: defind env
      set_fact:
        kernel_info_data: "{{ kernel_info_data| default([]) }}"

    - name: add host info to list
      set_fact:
        server_info: "{{ hostinfo }}"
      when: server_info is defined

    - name: add check host to remote
      add_host:
        hostname: '{{ item.host }}'
        ansible_user: '{{ item.user }}'
        ansible_ssh_pass: '{{ item.password }}'
        ansible_ssh_port: '{{ item.port }}'
        groups: check_kernel{{ hostgroup }}
      with_items: "{{ hostinfo }}"
      no_log: true

    - name: Gather Facts and Get Kernel Version
      raw: uname -r
      register: facts_result
      delegate_to: "{{ item }}"
      with_inventory_hostnames:
        - check_kernel{{ hostgroup }}


    - name: set version envs
      set_fact:
        lowest_version: "{{ '%.2f'| format(kernelVersion.split('-')[0]|float) }}"
        highest_version: "{{ '%.2f'| format(kernelVersion.split('-')[1]|float) }}"

    - name: debug msg kernel version
      debug:
        msg: "{{ lowest_version }} : {{ highest_version }}"

    - name: Combining JSON check False data
      set_fact:
        kernel_info_data: "{{ kernel_info_data + [item.item] }}"
      vars:
        asbKer: "{{ '%.2f'| format(item.stdout_lines[0]| regex_replace('^(\\d+\\.\\d+).*', '\\1')|float) }}"
      with_items: "{{ facts_result.results }}"
      no_log: true
      when: isCheck == true and asbKer < lowest_version or asbKer > highest_version

    - name: check kernel version
      debug:
        msg: "{{ kernel_info_data|to_json }} 服务器内核版本检测失败! -> 请确保系统内核版本在: {{ 'V'+lowest_version+'-'+'V'+highest_version }}"
      when: isCheck == true and kernel_info_data is defined and kernel_info_data|length > 0

    - name: check kernel version
      debug:
        msg: "[PlatformResultWithJson] {\"kernel_result\": \"内核版本检测通过!\"}"
      when: isCheck == false

    - name: check kernel version success
      debug:
        msg: "[PlatformResultWithJson] {\"kernel_result\": \"内核版本检测通过!\"}"
      when: isCheck == true and  kernel_info_data|length <= 0