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<%#
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kind: snippet
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name: preseed_networking_setup
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model: ProvisioningTemplate
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snippet: true
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description: this will configure your host networking, it configures your primary interface as well
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as other configures NICs. It supports physical, VLAN and Alias interfaces. It's intended to be
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called in your preseed finish template.
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%>
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<% host_subnet = @host.subnet -%>
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<% host_dhcp = host_subnet.nil? ? false : host_subnet.dhcp_boot_mode? -%>
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<% host_subnet6 = @host.subnet6 -%>
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<% host_dhcp6 = host_subnet6.nil? ? false : host_subnet6.dhcp_boot_mode? -%>
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real=`ip -o link | awk '/<%= @host.mac -%>/ {print $2;}' | sed s/://`
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cat << EOF > /etc/network/interfaces
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#loopback
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auto lo
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iface lo inet loopback
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#<%= @host.primary_interface.identifier %>
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auto $real
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allow-hotplug $real
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iface $real inet <%= host_dhcp ? 'dhcp' : 'static' %>
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<% unless host_dhcp -%>
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address <%= @host.ip %>
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gateway <%= host_subnet.gateway %>
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netmask <%= host_subnet.mask %>
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dns-nameservers <%= host_subnet.dns_primary %> <%= host_subnet.dns_secondary %>
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dns-search <%= @host.domain %>
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<% end -%>
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<% if @host.ip6 && host_subnet6 && !host_dhcp6 -%>
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iface $real inet6 static
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address <%= @host.ip6 %>/<%= host_subnet6.cidr %>
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<% if host_subnet6.gateway -%>
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gateway <%= host_subnet6.gateway %>
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<% end -%>
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<% end -%>
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EOF
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<% @host.managed_interfaces.each do |interface| -%>
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<% interface_subnet = interface.subnet -%>
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<% interface_dhcp = interface_subnet.nil? ? false : interface_subnet.dhcp_boot_mode? -%>
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<% interface_subnet6 = interface.subnet6 -%>
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<% interface_dhcp6 = interface_subnet6.nil? ? false : interface_subnet6.dhcp_boot_mode? -%>
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<% next if !interface.managed? || (interface_subnet.nil? && interface_subnet6.nil?) || interface.primary -%>
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real=`ip -o link | awk '/<%= interface.mac -%>/ {print $2;}' | sed s/:$//`
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<% virtual = interface.virtual? -%>
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<% if virtual -%>
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real=`echo <%= interface.identifier -%> | sed s/<%= interface.attached_to -%>/$real/`
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<% end -%>
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cat << EOF >> /etc/network/interfaces
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#<%= interface.identifier %>
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<% if interface_subnet %>
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auto $real
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iface $real inet <%= interface_dhcp ? 'dhcp' : 'static' %>
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<% unless interface_dhcp -%>
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address <%= interface.ip %>
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netmask <%= interface_subnet.mask %>
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<% end -%>
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<% end -%>
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<% if interface.ip6 && interface_subnet6 %>
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<% unless interface_dhcp6 -%>
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iface $real inet6 static
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address <%= interface.ip6 %>/<%= interface_subnet6.cidr %>
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<% if interface_subnet6.gateway -%>
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gateway <%= interface_subnet6.gateway %>
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<% end -%>
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<% end -%>
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<% end -%>
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EOF
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<% end -%>
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