#pillar structure:    ##########################################################
networking:
  - eth0:
    - ip: 192.168.22.42
    - netmask: 255.255.255.0
    - gateway: 192.168.22.1
    - dns-nameservers: 192.168.22.1


#networking file     salt://files/debian-network-interfaces       ###################################
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
    address {{  pillar['networking']['eth0']['ip']  }}
    netmask {{  pillar['networking']['eth0']['netmask']  }}
    gateway {{  pillar['networking']['eth0']['gateway']  }}
    dns-nameservers {{  pillar['networking']['eth0']['dns-nameservers']  }}



# networking.sls  STATE  ##########################################################

networking-file:
  file.managed:
    - name: /etc/network/interfaces
    - source: salt://files/debian-network-interfaces
    - template: jinja

restart-interfaces:
  cmd.wait:
    - name: /etc/init.d/networking restart
    - cwd: /
    - watch:
      - file: networking-file




#### ERROR : ##############################################

    State: - file
    Name:      /etc/network/interfaces
    Function:  managed
        Result:    False
        Comment:   Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/salt/utils/templates.py", line 63, in render_tmpl
    output = render_str(tmplstr, context, tmplpath)
  File "/usr/lib/python2.6/dist-packages/salt/utils/templates.py", line 116, in render_jinja_tmpl
    output = jinja_env.from_string(tmplstr).render(**context)
  File "/usr/lib/pymodules/python2.6/jinja2/environment.py", line 891, in render
    return self.environment.handle_exception(exc_info, True)
  File "<template>", line 6, in top-level template code
  File "/usr/lib/pymodules/python2.6/jinja2/environment.py", line 352, in getitem
    return obj[argument]
UndefinedError: 'list object' has no attribute 'eth0'