安装和配置好ansible，执行命令时报错如下
[root@test01 ansible-install]# ansible test -m shell -a 'w'
10.xx.37.26 | FAILED | rc=- >>
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. 10.xx.37.25 | FAILED | rc=- >>
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. 10.xx.37.24 | FAILED | rc=- >>
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
[defaults]
forks = #执行时并发数
host_key_checking = False #不检测host key