如何使用異步運行Ansible並行任務並檢查日誌成功/失敗

Question

我正在嘗試使用正確的操作手冊並行啓動幾個作業。 我必須發佈到http才能開始工作;一旦工作排隊，完成工作可能需要1-3分鐘。我需要在後臺並行啓動幾個作業，然後輪詢日誌以獲取成功消息或失敗的消息，並且還需要超時。我有ssh訪問SERVERNAME，所以正則表達式搜索部分非常有效;但是我沒有找到一種方法來使它在日誌中發現「Started Failed」時失敗。試過的狀態=缺席，但似乎適用於其他wait_for組件。

這一切都可以Ansible？我想出下面的yaml。

--- 

- hosts: localhost 
    connection: local 
    gather_facts: no 


    tasks: 

    - name: Launch an http POST 
     async: 10 
     poll: 0 
     uri: 
     url: "https://SERVERNAME/MYLINK1" 
     method: POST 
     headers: 
      Content-Type: "application/x-www-form-urlencoded" 
     status_code: 200 
     validate_certs: no 
     timeout: 10 
     return_content: yes 
     register: response1 

    - name: Launch an http POST 
     async: 10 
     poll: 0 
     uri: 
     url: "https://SERVERNAME/MYLINK2" 
     method: POST 
     headers: 
      Content-Type: "application/x-www-form-urlencoded" 
     status_code: 200 
     validate_certs: no 
     timeout: 10 
     return_content: yes 
     register: response2 

    - name: Wait Job to be ready 
     async: 120 
     delegate_to: SERVERNAME 
     wait_for: 
     path: /usr/local/logs/mylog1.log 
     search_regex: "Started Success" 
     register: wait_for_success1 

    - name: Wait Job to be failed 
     async: 120 
     delegate_to: SERVERNAME 
     wait_for: 
     path: /usr/local/logs/mylog1.log 
     search_regex: "Started Failed" 
     register: wait_for_failed1 

    - name: Wait Job to be ready 
     async: 120 
     delegate_to: SERVERNAME 
     wait_for: 
     path: /usr/local/logs/mylog2.log 
     search_regex: "Started Success" 
     register: wait_for_success=2 

    - name: Wait Job to be failed 
     async: 120 
     delegate_to: SERVERNAME 
     wait_for: 
     path: /usr/local/logs/mylog2.log 
     search_regex: "Started Failed" 
     register: wait_for_failed2 

Answer 1

您不應在檢查任務中使用async。您可以在wait_for模塊中使用timeout參數。

- hosts: SERVERNAME 
    tasks: 
    - name: Wait Job1 to be ready 
     wait_for: 
     path: /usr/local/logs/mylog1.log 
     search_regex: "Started Success" 
     timeout: 120 

    - name: Wait Job2 to be ready 
     wait_for: 
     path: /usr/local/logs/mylog2.log 
     search_regex: "Started Success" 
     timeout: 120 

我不會打擾檢查日誌中是否出現「啓動失敗」。如果Ansible在超時（本例中爲2米）的日誌中看不到「已啓動成功」，則播放將失敗。