# {{ ansible_managed }}

{% for link in gre_matrix %}
{% if ansible_hostname.startswith(link.a) or ansible_hostname.startswith(link.b) %}
{% if ansible_hostname.startswith(link.a) %}
{% set ifname = "tun-%s" % link.b %}
{% set address = gre_prefix | ipsubnet(31, link.id * 2) | ipaddr(0) %}
{% set peer = "%s.%s" % (link.b, site_domain) %}
{% else %}
{% set ifname = "tun-%s" % link.a %}
{% set address = gre_prefix | ipsubnet(31, link.id * 2) | ipaddr(1) %}
{% set peer = "%s.%s" % (link.a, site_domain) %}
{% endif %}
# {{ ifname }}
auto {{ ifname }}
iface {{ ifname }} inet tunnel
	mode		gre
	local		{{ ansible_default_ipv4.address }}
	endpoint	{{ peer | resolve('a') }}
	#
	address	{{ address }}
	ttl	64
	mtu	1400

{% endif %}
{% endfor %}