在执行ansible-playbook example.yml时候,总是提示paramiko: The authenticity of host 'XXXX' can't be established.

paramiko: The authenticity of host '192.168.1.1' can't be established.
The ssh-rsa key fingerprint is eff0743134e86397485685c5c9d84b8e.
Are you sure you want to continue connecting (yes/no)?

比较奇怪的是,其实这台主机是可以ssh登录的,并且已经ssh可以正常登录(并没有提示需要确认主机key):检查可以看到/etc/ssh/ssh_config配置了

StrictHostKeyChecking no
UserKnownHostsFile /dev/null

所以ssh HOST时候不会报错(即不校验host key)。

但是paramiko是不使用/etc/ssh_config配置,导致ansible还是要校验host key。

参考 Host Key Checking,我们可以在 /etc/ansible/ansible.cfg~/.ansible.cfg添加

[defaults]
host_key_checking = False

export ANSIBLE_HOST_KEY_CHECKING=False

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