1.0.0 Release IaaS

docs/services/systemd/systemd-networkd.md

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+# systemd-networkd
+
+- Use `networkctl` and the files in `/etc/systemd/network`
+- link file
+    Link file links hardware interface and kernel while booting
+- netdev file
+    netdev file defines virtual interface \(port, bridge\)
+- network file
+    network file defines network option above interfaces
+
+## commands
+
+- reload
+  - networkctl reload
+  - networkctl reconfigure \[interface name\]
+
+## references
+
+- https://manpages.debian.org/testing/systemd/systemd/networkctl.1.en.html
+- https://manpages.debian.org/testing/systemd/systemd.link.5.en.html
+- https://manpages.debian.org/testing/systemd/systemd.network.5.en.html
+- https://manpages.debian.org/testing/systemd/systemd.netdev.5.en.html
+
+## Plans
+
+- Hypervisor's linux bridges work as L2 switch
+  - br0 is completely L2 switch \(LinkLocalAddressing=no\)
+  - br1 has ip address for hypervisor itself, but basically works as L2 switch whitch can deal with VLAN tags; id=1,10
+- Firewall's port \(wan\) works as Gateway which can conduct NAT
+- Firewall's port \(clients\) works as trunk port which can deal with VLAN tags; id=1,10,20
+- Firewall's port
+  - client, id = 1
+  - server, id = 10
+  - user, id = 20
+  - wg0