feat: enable ceph on k8s nodes (#362)

- enable enough ceph/frr to join to cephfs
- notify sshd when restarting the network
- update ssh principals to include all ssh interfaces

Reviewed-on: #362

hieradata/nodes/prodnxsr0001.main.unkin.net.yaml

@@ -0,0 +1,13 @@
+---
+networking_loopback0_ip: 198.18.19.1  # management loopback
+networking_loopback1_ip: 198.18.22.1  # ceph-cluster loopback
+networking_loopback2_ip: 198.18.23.1  # ceph-public loopback
+networking_1000_ip: 198.18.15.1       # 1gbe network
+networking_2500_ip: 198.18.21.1       # 2.5gbe network
+networking_1000_iface: enp2s0
+networking_2500_iface: enp3s0
+networking::interfaces:
+  "%{hiera('networking_1000_iface')}":
+    mac: d8:9e:f3:75:c3:60
+  "%{hiera('networking_2500_iface')}":
+    mac: 00:ac:d0:00:00:50