install_nginx.yml

---
- hosts: localhost
  user: root

  tasks:
    - name: Install nginx
      dnf:
        name: nginx
        state: latest

[vagrant@ansible-test ~]$ sudo ansible-playbook install_nginx.yml 

PLAY [localhost] ************************************************************** 

GATHERING FACTS *************************************************************** 
ok: [localhost]

TASK: [Install nginx] ********************************************************* 
ok: [localhost]

PLAY RECAP ******************************************************************** 
localhost                  : ok=2    changed=0    unreachable=0    failed=0   

[vagrant@ansible-test ~]$ rpm -qa | grep nginx
[vagrant@ansible-test ~]$ 

[vagrant@ansible-test ~]$ ansible --version
ansible 1.9.4
  configured module search path = None

[vagrant@ansible-test ~]$ lsb_release -a
LSB Version:    :core-4.1-amd64:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-noarch:languages-4.
1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch                                                          
Distributor ID: Fedora
Description:    Fedora release 22 (Twenty Two)
Release:        22
Codename:       TwentyTwo