Ansible Playbook to Install Nginx

nginx.yml

---
- hosts: all
  sudo: yes
  
  tasks:
  - name: check registered the repository of nginx-release
    shell: rpm -qa | grep nginx-release
    register: result
    ignore_errors: True
    always_run: yes
    changed_when: no
    
  - name: add repository nginx-release (CentOS6/CentOS7)
    yum: name="http://nginx.org/packages/centos/{{ansible_distribution_major_version}}/noarch/RPMS/nginx-release-centos-{{ansible_distribution_major_version}}-0.el{{ansible_distribution_major_version}}.ngx.noarch.rpm"
    when: result|failed

  - name: disable the repository (pls set --enablerepo=nginx if you use it)
    replace: dest=/etc/yum.repos.d/nginx.repo regexp="enabled *= *1" replace="enabled=0"
    ignore_errors: True

  - name: install nginx
    yum: name=nginx state=present enablerepo=nginx

  - name: Start Nginx
    service: name=nginx enabled=yes state=started