ansible 模块：debug

2022 年 5 月 12 日
本文字数：2424 字
阅读完需：约 8 分钟

参数

msg  打印的自定义消息var  要调试的变量名。与msg选项互斥。verbosity   一个控制调试运行时间的数字，如果设置为3，则仅在-vvv或更高版本时运行调试

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示例

---
 - name: talk to all hosts just so we can learn about them   hosts: all   vars:     password_used: '123456'   tasks:   - name: Print the gateway for each host when defined     debug:       msg: System {{ inventory_hostname }} has gateway {{ ansible_default_ipv4.gateway }}     when: ansible_default_ipv4.gateway is defined
   - name: Get uptime information     shell: /usr/bin/uptime     register: result
   - name: Print return information from the previous task     debug:       var: result       verbosity: 3
   - name: Display all variables/facts known for a host     debug:       var: hostvars[inventory_hostname]       verbosity: 4
   - name: Prints two lines of messages, but only if there is an environment value set     debug:       msg:       - "Provisioning based on YOUR_KEY which is: {{ lookup('env', 'YOUR_KEY') }}"       - "These servers were built using the password of '{{ password_used }}'. Please retain this for later use."

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执行输出：

$ ansible-playbook debug.yaml
PLAY [talk to all hosts just so we can learn about them] ***************************************************************************************************************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************************************************************************************************************************************************ok: [192.168.211.62]ok: [192.168.211.61]ok: [192.168.211.60]
TASK [Print the gateway for each host when defined] ********************************************************************************************************************************************************************************************************ok: [192.168.211.60] => {    "msg": "System 192.168.211.60 has gateway 192.168.211.2"}ok: [192.168.211.61] => {    "msg": "System 192.168.211.61 has gateway 192.168.211.2"}ok: [192.168.211.62] => {    "msg": "System 192.168.211.62 has gateway 192.168.211.2"}
TASK [Get uptime information] ******************************************************************************************************************************************************************************************************************************changed: [192.168.211.62]changed: [192.168.211.61]changed: [192.168.211.60]
TASK [Print return information from the previous task] *****************************************************************************************************************************************************************************************************skipping: [192.168.211.60]skipping: [192.168.211.61]skipping: [192.168.211.62]
TASK [Display all variables/facts known for a host] ********************************************************************************************************************************************************************************************************skipping: [192.168.211.60]skipping: [192.168.211.61]skipping: [192.168.211.62]
TASK [Prints two lines of messages, but only if there is an environment value set] *************************************************************************************************************************************************************************ok: [192.168.211.60] => {    "msg": [        "Provisioning based on YOUR_KEY which is: ",        "These servers were built using the password of '123456'. Please retain this for later use."    ]}ok: [192.168.211.61] => {    "msg": [        "Provisioning based on YOUR_KEY which is: ",        "These servers were built using the password of '123456'. Please retain this for later use."    ]}ok: [192.168.211.62] => {    "msg": [        "Provisioning based on YOUR_KEY which is: ",        "These servers were built using the password of '123456'. Please retain this for later use."    ]}
PLAY RECAP *************************************************************************************************************************************************************************************************************************************************192.168.211.60             : ok=4    changed=1    unreachable=0    failed=0    skipped=2    rescued=0    ignored=0192.168.211.61             : ok=4    changed=1    unreachable=0    failed=0    skipped=2    rescued=0    ignored=0192.168.211.62             : ok=4    changed=1    unreachable=0    failed=0    skipped=2    rescued=0    ignored=0