SSH免密登录

ssh-keygen -t rsa -f /root/.ssh/id_rsa -N ''
ssh-copy-id 172.29.108.96
ansible k8sgroup -m cron -a 'name="test cron1" job="echo hello world" minute=0 hour=*/1'
ansible k8sgroup -m copy -a "src=/root/passwd dest=/root/passwd"
ansible all -a "date"
ansible-doc -l  #列出所有可用的 模块