Using a SSH password instead of a key is not possible because Host Key checking

运行ansible出错

[root@ansible ~]# ansible webservers -m ping -u root -k
SSH password: 
192.168.154.130 | FAILED! => {undefined
    "msg": "Using a SSH password instead of a key is not possible because Host Key checking is enabled and sshpass does not support this.  Please add this host's fingerprint to your known_hosts file to manage this host."
}

解决方法：

vi /etc/ansible/ansible.cfg

在文件中进行搜索定位到

:/host_key_checking

# uncomment this to disable SSH key host checking
#host_key_checking = False
修改后：

# uncomment this to disable SSH key host checking
host_key_checking = False

试一下：

[root@ansible ~]# ansible webservers -m ping -u root -k
SSH password: 
192.168.154.130 | SUCCESS => {undefined
    "changed": false, 
    "ping": "pong"
}