Ansible

Install it in the master node

# apt-get install ansible

add a section to /etc/ansible/hosts

[slaves]
d510
d610

Ping them (make sure you have ssh keys setup in authorized_keys)

# ansible -m ping -u root all
d510 | success >> {
    "changed": false,
    "ping": "pong"
}

d610 | success >> {
    "changed": false,
    "ping": "pong"
}

A first play file using apt to install some packages in the “slaves”

---
- name : first play
  hosts: slaves
  user: root

  tasks:

#  - name: install gcc
#    apt: pkg=gcc state=present
#  - name: install nginx
#    apt: pkg=nginx state=present

  - name: install findx
    copy: src=/usr/bin/findx dest=/usr/bin/findx owner=root group=root mode=755

  - name: install common packages
    action: apt pkg={{item}} state=installed
    with_items:
      - motion
      - nginx

Running it…

# ansible-playbook play.yml

PLAY [first play] *************************************************************

GATHERING FACTS ***************************************************************
ok: [d510]
ok: [d610]

TASK: [install findx] *********************************************************
ok: [d610]
ok: [d510]

TASK: [install common packages] ***********************************************
ok: [d610] => (item=motion,nginx)
ok: [d510] => (item=motion,nginx)

PLAY RECAP ********************************************************************
d510                       : ok=3    changed=0    unreachable=0    failed=0
d610                       : ok=3    changed=0    unreachable=0    failed=0