ANSIBLE

to get host inventory 

- name: Install this only for local dev machine
  pip: name=pyramid
  when: inventory_hostname == "local"

     instead of inventory_hostname , can use group_names to get individual group

copy command fails for large files use synchronize

tasks:
    - name: Transfer file from ServerA to ServerB
      synchronize:
        src: /path/on/server_a
        dest: /path/on/server_b