#
# FFHO iBGP configuration (Salt managed)
#

template bgp ibgp {
	import filter ibgp_in;
	export filter ibgp_out;

	local as AS_OWN;

	source address LO_IP;

	enable route refresh yes;
	graceful restart yes;
}


{#- Gather information for iBGP sessions #}
{%- set roles = salt['pillar.get']('nodes:' ~ grains['id'] ~ ':roles', []) %}
{%- set peers = [] %}
{%- for node in salt['pillar.get']('nodes', [])|sort if node != grains['id'] %}
  {%- set peer_node_config = salt['pillar.get']('nodes:' ~ node) %}
  {%- set peer_roles = peer_node_config.get ('roles', []) %}

  {#- save peers node name, mangle . and - to _ to make bird happy #}
  {%- set peer_config = { 'node' : salt['ffho.re_replace']('[.-]', '_', node) } %}
  {%- if 'router' in peer_roles %}
    {#- Skip peer if neither we nor him are a RR #}
    {%- if 'routereflector' not in roles and 'routereflector' not in peer_roles %}
      {%- continue %}
    {%- endif %}

    {#- Don't try to set up sessions to VMs/devices which are "planned", "failed", "decomissioning" and "inventory" #}
    {%- if peer_node_config.get ('status', '') not in [ '', 'active', 'staged', 'offline' ] %}
      {%- continue %}
    {%- endif %}

    {#- Is our peer a route reflector? #}
    {%- if 'routereflector' in peer_roles %}
      {%- do peer_config.update ({'rr' : True }) %}
    {%- endif %}

    {#- get peers Lo IP #}
    {%- do peer_config.update ({ 'ip' : salt['ffho_net.get_primary_ip'] (peer_node_config, proto).ip }) %}

    {%- do peers.append (peer_config) %}
  {%- endif %}
{%- endfor %}


{#- configure iBGP sessions #}
{% for peer_config in peers %}
protocol bgp {{ peer_config.get ('node') }} from ibgp {
	neighbor {{ peer_config.get ('ip') }} as AS_OWN;

  {%- if 'routereflector' in roles and not 'rr' in peer_config %}
	rr client;
  {%- endif %}
}

{% endfor %}