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{% set bridge_name = 'br-'+item.key %}
{% set bridge = item.value %}
{% set interface = (network.interfaces | selectattr('name', 'eq', bridge_name) | first | default({})) %}
auto {{ bridge_name }}
{% if 'address' in interface %}
iface {{ bridge_name }} inet static
address {{ interface.address | ipaddr('address') }}
netmask {{ interface.address | ipaddr('netmask') }}
{% if 'gateway' in interface %}
gateway {{ interface.gateway }}
{% endif %}
{% else %}
iface {{ bridge_name }} inet manual
{% endif %}
{% if 'interfaces' in bridge and (bridge.interfaces | length) > 0 %}
bridge_ports {{ bridge.interfaces | join(' ') }}
{% else %}
bridge_ports none
{% endif %}
bridge_stp off
bridge_waitport 0
bridge_fd 0
up echo 0 > /proc/sys/net/ipv6/conf/$IFACE/accept_ra
up echo 0 > /proc/sys/net/ipv6/conf/$IFACE/autoconf
up modprobe br_netfilter
up /sbin/sysctl net.bridge.bridge-nf-call-iptables=0
up /sbin/sysctl net.bridge.bridge-nf-call-ip6tables=0
up /sbin/sysctl net.bridge.bridge-nf-call-arptables=0
{% if 'address' in interface and 'prefix' in bridge %}
{% if 'nat' in bridge and bridge.nat %}
up echo 1 > /proc/sys/net/ipv4/conf/$IFACE/forwarding
up echo 1 > /proc/sys/net/ipv4/conf/{{ ansible_default_ipv4.interface }}/forwarding
up /sbin/iptables -t nat -A POSTROUTING -o {{ ansible_default_ipv4.interface }} -s {{ bridge.prefix }} -j SNAT --to {{ ansible_default_ipv4.address }}
{% endif %}
{% for overlay_name in (bridge.overlays | default({}) | list | sort) %}
{% set overlay = bridge.overlays[overlay_name] %}
{% for dest, offset in (overlay.offsets | dictsort(by='value')) %}
up /bin/ip route add {{ (overlay.prefix | ipaddr(offset)).split('/')[0] }}/32 via {{ (bridge.prefix | ipaddr(bridge.offsets[dest])).split('/')[0] }} # {{ dest }}
{% endfor %}
up /bin/ip route add unreachable {{ overlay.prefix }}
down /sbin/ip route del {{ overlay.prefix }}
{% endfor %}
{% if 'nat' in bridge and bridge.nat %}
down /sbin/iptables -t nat -D POSTROUTING -o {{ ansible_default_ipv4.interface }} -s {{ bridge.prefix }} -j SNAT --to {{ ansible_default_ipv4.address }}
{% endif %}
{% endif %}
{% if 'address6' in interface %}
iface {{ bridge_name }} inet6 static
address {{ interface.address6 }}
{% if 'gateway6' in interface %}
gateway {{ interface.gateway6 }}
{% endif %}
{% endif %}
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