This file describe all the Keepalived available keywords. The keepalived.conf
file is compounded by three configurations parts :

	* Globals configurations
	* VRRP configuration
	* LVS configuration

0. Comment string

There is 2 valid comment valid string : # or ! If you want to add comment
in you configuration file use this char.

1. Globals configurations

This block is divided in 2 sub-block :

	* Global definitions
	* Static routes

	1.1. Global definitions

	The configuration block looks like :

global_defs {				# Block identification
    notification_email {		# Email to send alertes to
       <EMAIL ADDRESS>			# Standard email address
      <EMAIL ADDRESS>
      ...
    }
    notification_email_from <EMAIL ADDRESS> # Email From dealing with SMTP proto
    smtp_server <IP ADDRESS>		   # SMTP server IP address
    smtp_connect_timeout <INTEGER>	   # Number of seconds timeout connect
 					   #  remote SMTP server
    lvs_id <STRING>			   # String identifying router
}

	1.2. Static addresses

	The configuration block looks like :

static_ipaddress {			# block identification
    <IP ADDRESS>/<MASK> brd <IP ADDRESS> dev <STRING> scope <SCOPE>
    <IP ADDRESS>/<MASK> brd <IP ADDRESS> dev <STRING> scope <SCOPE>
    ...
}

SCOPE can take the following values :
	* site
	* link
	* host
	* nowhere
	* global

	1.3. Static routes

	The configuration block looks like :

static_routes {							# block identification
    src <IP ADDRESS> [to] <IP ADDRESS>/<MASK> via|gw <IP ADDRESS> dev <STRING> scope <SCOPE> table <TABLE-ID> # to is optional
    src <IP ADDRESS> [to] <IP ADDRESS>/<MASK> via|gw <IP ADDRESS> dev <STRING> scope <SCOPE> table <TABLE-ID> # to is optional
    ...
}

SCOPE can take the following values :
	* site
	* link
	* host
	* nowhere
	* global

2. VRRP configuration

This block is divided in 2 sub-block :

	* VRRP synchronization group
	* VRRP instance

	2.1. VRRP synchronization group

	The configuration block looks like :

vrrp_sync_group <STRING> {	# VRRP sync group declaration
    group {			# group of instance to sync together
      <STRING>			#   a
      <STRING>			#       set
      ...			#             of VRRP_Instance string
    }
    notify_master <STRING>|<QUOTED-STRING> # Script to run during MASTER transit
    notify_backup <STRING>|<QUOTED-STRING> # Script to run during BACKUP transit
    notify_fault <STRING>|<QUOTED-STRING>  # Script to run during FAULT transit
    notify <STRING>|<QUOTED-STRING>	   # Script to run during ANY state transit (1)
    smtp_alert		 # Send email notif during state transit
}

(1) The "notify" script is called AFTER the corresponding notify_* script has
    been called, and is given exactly 3 arguments (the whole string is interpreted
    as a litteral filename so don't add parameters!):

    $1 = A string indicating whether it's a "GROUP" or an "INSTANCE"
    $2 = The name of said group or instance
    $3 = The state it's transitioning to ("MASTER", "BACKUP" or "FAULT")

    $1 and $3 are ALWAYS sent in uppercase, and the possible strings sent are the
    same ones listed above ("GROUP"/"INSTANCE", "MASTER"/"BACKUP"/"FAULT").

	2.2. VRRP instance

	The configuration block looks like :

vrrp_instance <STRING> {		# VRRP instance declaration
    state MASTER|BACKUP			# Start-up default state
    interface <STRING>			# Binding interface
    track_interface {			# Interfaces state we monitor
      <STRING>
      <STRING>
      ...
    }
    mcast_src_ip <IP ADDRESS>		# src_ip to use into the VRRP packets
    lvs_sync_daemon_interface <STRING>	# Binding interface for lvs syncd
    garp_master_delay <INTEGER>		# delay for gratuitous ARP after MASTER
					#  state transition
    virtual_router_id <INTEGER-0..255>	# VRRP VRID
    priority <INTEGER-0..255>		# VRRP PRIO
    advert_int <INTEGER>		# VRRP Advert interval (use default)
    authentication {			# Authentication block
        auth_type PASS|AH		# Simple Passwd or IPSEC AH
        auth_pass <STRING>		# Password string
    }
    virtual_ipaddress {			# VRRP IP addres block
        <IP ADDRESS>/<MASK> brd <IP ADDRESS> dev <STRING> scope <SCOPE>
        <IP ADDRESS>/<MASK> brd <IP ADDRESS> dev <STRING> scope <SCOPE>
        ...
    }
    virtual_ipaddress_excluded {         		# VRRP IP excluded from VRRP
        <IP ADDRESS>/<MASK> brd <IP ADDRESS> dev <STRING> scope <SCOPE>	# packets
        <IP ADDRESS>/<MASK> brd <IP ADDRESS> dev <STRING> scope <SCOPE>
        ...
    }
    virtual_routes {			 # VRRP virtual routes
    	src <IP ADDRESS> [to] <IP ADDRESS>/<MASK> via|gw <IP ADDRESS> dev <STRING> scope <SCOPE> table <TABLE-ID> # to is optional
    	src <IP ADDRESS> [to] <IP ADDRESS>/<MASK> via|gw <IP ADDRESS> dev <STRING> scope <SCOPE> table <TABLE-ID> # to is optional
        ...
    }
    preempt				# VRRP preempt mode (default set)
    debug				# Debug level
    notify_master <STRING>|<QUOTED-STRING> # Same as vrrp_sync_group
    notify_backup <STRING>|<QUOTED-STRING> # Same as vrrp_sync_group
    notify_fault <STRING>|<QUOTED-STRING>  # Same as vrrp_sync_group
    notify <STRING>|<QUOTED-STRING>	   # Same as vrrp_sync_group
    smtp_alert				   # Same as vrrp_sync_group
}

SCOPE can take the following values :
	* site
	* link
	* host
	* nowhere
	* global

3. LVS configuration

This block is divided in 2 sub-block :

	* Virtual server group
	* Virtual server

	3.1. Virtual server group
	
	The configuration block looks like :

virtual_server_group <STRING> {
	<IP ADDRESS> <PORT>		# VIP VPORT
	<IP ADDRESS> <PORT>
	...
	<IP ADDRESS RANGE> <PORT>	# VIP range VPORT
	<IP ADDRESS RANGE> <PORT>
	...
	fwmark <INTEGER>		# fwmark
	fwmark <INTEGER>
	...
}

Note:	<IP ADDRESS RANGE> has the form of : XXX.YYY.ZZZ.WWW-VVV, define
	the IP address range starting at WWW and monotonaly incremented by
	one to VVV. Example : 192.168.200.1-10 means .1 to .10 IP addresses.

	3.2. Virtual server
	
	The configuration block looks like :

	A virtual_server can be either :
	* vip vport declaration
	* fwmark declaration
	* group declaration

virtual_server <IP ADDRESS> <PORT> {	# VS IP/PORT declaration
virtual_server fwmark <INTEGER>    {	# VS fwmark declaration
virtual_server group <STRING>      {	# VS group declaration
    delay_loop <INTEGER>		# delay timer for service polling
    lb_algo rr|wrr|lc|wlc|lblc|sh|dh	# LVS scheduler used
    lb_kind NAT|DR|TUN			# LVS method used
    persistence_timeout <INTEGER>	# LVS persistence timeout
    persistence_granularity <NETMASK>	# LVS granularity mask
    protocol TCP			# Only TCP is implemented
    ha_suspend				# If VS IP address is not set, suspend
					#  healthcheckers activity
    virtualhost <STRING>		# VirtualHost string to use for
					#  HTTP_GET or SSL_GET

    sorry_server <IP ADDRESS> <PORT>	# RS to add to LVS topology when all
					#   realserver are down

    real_server <IP ADDRESS> <PORT> {	# RS declaration
        weight <INTEGER>		# weight to use (default: 1)
        inhibit_on_failure		# Set weight to 0 on healtchecker
					#  failure
        notify_up <STRING>|<QUOTED-STRING> # Script to launch when
					   #  healthchecker consider service
					   #  as up.
        notify_down <STRING>|<QUOTED-STRING> # Script to launch when 
					     #  healthchecker consider service
					     #  as down.
	
        HTTP_GET|SSL_GET {		# HTTP and SSL healthcheckers
            url {			# A set of url to test
              path <STRING>		# Path
              digest <STRING>		# Digest computed with genhash
              status_code <INTEGER>	# status code returned into the HTTP
            }                           #   header.
            url {
              path <STRING>
              digest <STRING>
              status_code <INTEGER>
            }
            ...
            connect_port <PORT>		# TCP port to connect
            bindto <IP ADDRESS>		# IP address to bind to
            connect_timeout <INTEGER>	# Timeout connection
            nb_get_retry <INTEGER>	# number of get retry
            delay_before_retry <INTEGER> # delay before retry
        }
    }

    real_server <IP ADDRESS> <PORT> {	# Idem
        weight <INTEGER>		# Idem
        inhibit_on_failure		# Idem
        notify_up <STRING>|<QUOTED-STRING> # Idem
        notify_down <STRING>|<QUOTED-STRING> # Idem

        TCP_CHECK {			# TCP healthchecker
            connect_port <PORT>		# TCP port to connect
            bindto <IP ADDRESS>		# IP address to bind to
            connect_timeout <INTEGER>	# Timeout connection
        }
    }

    real_server <IP ADDRESS> <PORT> {	# Idem
        weight <INTEGER>		# Idem
        inhibit_on_failure		# Idem
        notify_up <STRING>|<QUOTED-STRING> # Idem
        notify_down <STRING>|<QUOTED-STRING> # Idem

        MISC_CHECK {				# MISC healthchecker
            misc_path <STRING>|<QUOTED-STRING>	# External system script or program
            misc_timeout <INTEGER>		# Script execution timeout
        }
    }
}