ansible api 调用出现ssh交互式输入

发现在删掉 ~/.ssh/know_hosts 之后运行 ansible api 会出现以下提示

The authenticity of host '10.1.*.* (10.1.*.*)' can't be established.
RSA key fingerprint is ::a5:c0:f8:4a:a2:d2:1a:ef::8f::f5:dd:4a.
Are you sure you want to continue connecting (yes/no)?

因为在脚本里面自动运行调用，无法使用 pexpect 模块，也无法捕捉到 这段提示的输出，ansible 源码研究不够透彻搞了半天也没解决，最后只能从根本途径上面解决问题，直接修改 ssh 配置，去掉该段提示。

vim /etc/ssh/ssh_config 

Host *
    StrictHostKeyChecking no

重启 sshd

service sshd restart