main.yml

# Configure Master Node
- hosts: master 
  remote_user: root
  vars_files:
   - vars/user.yml
   - vars/var_basic.yml
   - vars/var_master.yml
  vars:
    add_user: true
    generate_key: true
    open_firewall: false
    disable_firewall: false
    install_hadoop: true
    config_hadoop: true
    install_hibench: true
    config_hibench: true
  roles:
    - user
    - fetch_public_key
    - authorized
    - etc_hosts
    - java
    - hadoop
    - hibench

# Get Master Public Key
- hosts: master 
  remote_user: root
  vars_files:
   - vars/user.yml
   - vars/var_basic.yml
   - vars/var_workers.yml
  roles:
    - fetch_public_key

# Configure Worker Nodes
- hosts: workers 
  remote_user: root
  vars_files:
   - vars/user.yml
   - vars/var_basic.yml
   - vars/var_workers.yml
  vars:
    add_user: true
    generate_key: false
    open_firewall: false
    disable_firewall: false
    install_hadoop: true
    config_hadoop: true
    install_hibench: true
    config_hibench: true
  roles:
    - user
    - authorized
    - etc_hosts
    - java
    - hadoop