"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 ma

Centos7.5 ansible第一次使用模块报错

问题:

[root@m01 ~]# ansible webservers -m ping -i ./hosts
172.16.1.7 | FAILED! => {
    "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."
}
172.16.1.8 | FAILED! => {
    "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."
}

产生的原因:

如果控制端和被控制端第一次通讯，需要先添加指纹信息

解决方法:

添加指纹信息
[root@m01 ~]# ssh 172.16.1.7
The authenticity of host '172.16.1.7 (172.16.1.7)' can't be established.
ECDSA key fingerprint is SHA256:KS0T63CVc6vyFB3MHXLjPGCuTL3AIaNR5Jk1D92pW8Q.
ECDSA key fingerprint is MD5:5e:6e:7e:90:16:0c:0e:c3:a2:3d:73:2a:9a:be:40:aa.
Are you sure you want to continue connecting (yes/no)? yes
root@172.16.1.7's password: 输入密码
Last login: Tue Feb 26 15:58:50 2019 from 10.0.0.1
[root@web01 ~]# exit
logout
Connection to 172.16.1.7 closed.
[root@m01 ~]# ansible web01 -m ping -i ./hosts	
172.16.1.7 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}

那如果机器特别多少的情况下怎么办？

仅需开启ansible中的 host_key_checking = False
[root@m01 ~]# vim /etc/ansible/ansible.cfg 
host_key_checking = False
[root@m01 ~]# ansible webservers -m ping -i ./hosts
172.16.1.7 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}
172.16.1.8 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}