feat: continue incus implementation

- migrate to systemd-networkd
- setup dummy, bridge and static/ethernet interfaces
- manage sshd.service droping to start ssh after networking is online
- enable ip forewarding
- add fastpool/data/incus dataset
- enable ospf and frr
- add loopback0 as ssh listenaddress
- add loopback1/2 for ceph cluster/public traffic

modules/networking/templates/bridge.netdev.erb

@@ -0,0 +1,3 @@
+[NetDev]
+Name=<%= @title %>
+Kind=bridge

modules/networking/templates/dummy.netdev.erb

@@ -0,0 +1,3 @@
+[NetDev]
+Name=<%= @title %>
+Kind=dummy

modules/networking/templates/networkd-link.erb

@@ -0,0 +1,8 @@
+[Match]
+MACAddress=<%= @mac %>
+
+[Link]
+MTUBytes=<%= @mtu %>
+<% if @txqueuelen and @txqueuelen >= 1 -%>
+TransmitQueueLength=<%= @txqueuelen %>
+<% end -%>

modules/networking/templates/networkd-network.erb

@@ -0,0 +1,37 @@
+[Match]
+Name=<%= @title %>
+
+[Network]
+<% if @ipaddress && @netmask -%>
+Address=<%= @ipaddress %>/<%= IPAddr.new(@netmask).to_i.to_s(2).count('1') %>
+<% end -%>
+<% if @gateway -%>
+Gateway=<%= @gateway %>
+<% end -%>
+<% if @dns -%>
+DNS=<%= Array(@dns).join(' ') %>
+<% end -%>
+<% if @domains -%>
+Domains=<%= Array(@domains).join(' ') %>
+<% end -%>
+<% if @bridge and @bridge != true -%>
+Bridge=<%= @bridge %>
+<% end -%>
+<% if @vlan -%>
+VLAN=<%= @vlan %>
+<% end -%>
+<% if @nocarrier and @nocarrier == true -%>
+ConfigureWithoutCarrier=true
+DuplicateAddressDetection=none
+RequiredForOnline=no-carrier
+<% end -%>
+<% if @type == 'dummy' -%>
+LinkLocalAddressing=no
+ActivationPolicy=always-up
+<% end -%>
+<% if @forwarding and @forwarding == true -%>
+IPForward=true
+<% end -%>
+
+[Link]
+MTUBytes=<%= @mtu %>