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ansible-app

说明

下面以一个ansible脚本为例,说明维护中的通用模板:

---
- hosts: all
  vars:
    check_port:
      - 8080
      - 80
    result: ok
  tasks:
    - name: Check if port is listening
      block:
        - name: do checking....
          wait_for:
            port: "{{ item }}"
            timeout: 5
            msg: "Timeout waiting for {{ item }} to respond"
          loop: "{{ check_port }}"
      rescue:
        - set_fact:
            result: failed
        - fail: 
            msg: error is happened
          when: result == "failed"
        - name:  
          debug:
            msg: 'I also never execute :-('
      always:
        - name: always to check result
          debug:
            msg: "all tasks are finished, result is {{ result }}"  

vars

变量循环定义,result默认为ok,用来标识整个任务的最终运行状态。相关的变量也要在此进行定义。

block

该处是任务的循环体,参考:https://docs.ansible.com/ansible/latest/user_guide/playbooks_blocks.html

rescue

任务循环中异常处理

        - set_fact:
            result: failed

设置result为failed

        - fail: 
            msg: error is happened
          when: result == "failed"  

抛出异常

        - name:  
          debug:
            msg: 'I also never execute :-('

该语句正常情况下,不会执行

always

任务最终执行结果,正常打印:all tasks are finished, result is ok;错误的时候打印:all tasks are finished, result is failed

vault

The --ask-vault-pass and --vault-password-file options can be used as long as only a single password is needed for any given run.

ansible-vault encrypt --vault-id @prompt secret_conditonal.yml

https://dev.iachieved.it/iachievedit/ansible-vault-ids/ https://learn.redhat.com/t5/Automation-Management-Ansible/Vault-IDs-in-Ansible-2-4/td-p/1531

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