my version of the ansible playbook taste.yml based on the Ansible chapter of Matt Jaynes' Taste Test (http://devopsu.com/books/taste-test-puppet-chef-salt-stack-ansible.html).

taste.yml

- hosts:  all
  tasks:
  - name: ensure nginx is installed
    action: apt pkg=nginx state=present
    
- hosts: puppy
  vars:
    baby: puppy
  tasks:
    - name: ensure nginx is installed
      action: apt pkg=nginx state=present
    - name: ensure nginx is running
      action: service name=nginx state=started
    - name:  ensure puppy group is present
      action: group name=puppy state=present
    - name:  ensure puppy user is present
      action: user name=puppy state=present group=puppy
    - name:  ensure puppy.jpg is present
      action: copy src=/Users/raymondyee/D/Document/Working_with_Open_Data/working-open-data/notebooks/puppy.jpg/
                   dest=/usr/share/nginx/www/puppy.jpg
                   owner=puppy group=puppy mode=664
    - name: ensure index.html is installed
      action: template src=/Users/raymondyee/D/Document/Working_with_Open_Data/working-open-data/notebooks/index.j2
                   dest=/usr/share/nginx/www/index.html
      
      
- hosts: kitty
  vars:
    baby: kitty
  tasks:
    - name: ensure nginx is installed
      action: apt pkg=nginx state=present
    
    - name:  ensure kitty group is present
      action: group name=kitty state=present
    - name:  ensure kitty user is present
      action: user name=kitty state=present group=kitty    
    - name:  ensure kitty.jpg is present
      action: copy src=/Users/raymondyee/D/Document/Working_with_Open_Data/working-open-data/notebooks/kitty.jpg/
                    dest=/usr/share/nginx/www/kitty.jpg
                    owner=kitty group=kitty mode=664
    - name: ensure index.html is installed
      action: template src=/Users/raymondyee/D/Document/Working_with_Open_Data/working-open-data/notebooks/index.j2
                   dest=/usr/share/nginx/www/index.html