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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                1. 關閉ansible的ssh秘鑰檢查 vim /etc/ansible/ansible.cfg host_key_checking = False 2. open發送執行命令代替命令臨時文件(針對不使用sudo,建議開啟) vim /etc/ansible/ansible.cfg pipelinging = True 3. 升級openssh(升級到5.6以上) ``` openssh -V yum update openssh vim ~/.ssh/config Host * Compression yes ServerAliveInterval 60 ServerAliveCountMax 5 ControlMaster auto ControlPath ~/.ssh/sockets/%r@%h-%p ControlPersist 4h ``` 4. 關閉gather facts,使用gather_facts關鍵字,如果要特殊開啟, gather_facts: True vim /etc/ansible/ansible.cfg gathering = explicit 設置facts緩存,如果不想要禁用facts的話,可以使用緩沖 ``` vim /etc/ansible/ansible.cfg gathering=smart fact_caching_timeout=86400 fact_caching=jsonfile fact_caching_connection=/path/to/ansible_fact_cache ``` 5. 設置ssh長連接時間5天(openssh版本在5.6以上) vim /etc/ansible/ansible.cfg ssh_args = -C -o ControlMaster=auto -o ControlPersist=5d 6. 開啟accelerate模式,使用accelerate關鍵字[新版本中廢棄了這個特性,不符合ansible無客戶端模式特性,不考慮] (需要在被管理機器上安抓python-keyczar包,如果使用sudo,需要禁用nopasswd功能) 在playbook中 ```yml --- - hosts: all accelerate: true vim /etc/ansible/ansible.cfg [accelerate] accelerate_port = 5099 accelerate_timeout = 30 accelerate_connect_timeout = 5.0 ``` 被管理機器(托管機)安裝python-keyczar包 ```bash yum -y install epel-release yum -y install python-keyczar ``` 如果使用sudo,非root用戶,需要在被管理主機上關閉requietty和nopasswd配置(略) 7. 并行執行,使用async和poll關鍵字(可以不考慮) 使用async和poll這兩個關鍵字便可以并行運行一個任務. async這個關鍵字觸發ansible并行運作任務,而async的值是ansible等待運行這個任務的最大超時值,而poll就是ansible檢查這個任務是否完成的頻率時間. ``` - name: update app shell: sleep 10 async: 1000 poll: 0 ```
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