## Ansible role: network

### VIP interfaces

VIP (virtual IP address) are defined using nework_vip_interfaces variable.
Implementation is operating system specific itself. Currently OpenBSD uses
CARP (Command Address Redundancy Protocol) and Linux uses VRRP (Virtual
Router Redundancy Protocol) with keepalived daemon.

Parameters:

 * device: physical network device
 * vhid: router/host ID
 * ipaddr: virtual ip address
 * netmask: netmask for virtual ip address (optional on Linux)
 * pass: password for auththenticating advertisements
 * priority: used for elections higher value is preferred master
   value can be between 0 and 240 (optional)

Example:

network_vip_interfaces:
  - device: eth0
  - vhid: 1
  - ipaddr: 192.0.2.1
  - netmask: 255.255.255.0
  - pass: secret