如何加快與考慮下面的劇本環路（with_items或with_sequence）

Question

地方行動：

--- 
- name: test local_action with_items 
    hosts: localhost 
    gather_facts: false 
    tasks: 
    - name: "add something to a file" 
     shell: echo '{{item}}' >> foo.txt 
     with_items: 
     - "aaaaa" 
     - "aaaaa" 
# using 40 items 

或

--- 
- name: test local_action with_items 
    hosts: localhost 
    gather_facts: false 
    tasks: 
    - name: "add something to a file" 
     shell: echo '{{item}}' >> foo.txt 
     with_sequence: count=40 

後者劇本運行5秒鐘。

Using a bash loop is obviously much（1000次）更快，耗時5毫秒：

time for i in $(seq 1 40); do echo $i >> foo.txt;  done 

現在很明顯，Ansible具有一些開銷，但是否有可能加快這？

Answer 1

而不是shell模塊，使用raw模塊。它將和bash循環一樣快。

--- 
- name: test local_action with_items 
    hosts: localhost 
    gather_facts: false 
    tasks: 
    - name: "add something to a file" 
     raw: echo '{{item}}' >> foo.txt 
     with_sequence: count=40 
... 

無論如何，如果你想表現的，也許寫代碼C.