Ansible basic configuration

1、 With all The host group is the target id command

2、 Use copy The module modifies... On all hosts /etc/motd The content of the document is welcome to ansible

3、 Use command Module view /etc/motd The content of the document

4、 Use user Module creation user wukong,uid by 2000

5、 Use yum Module installation httpd Package and use service Module starts the service