Add Proxmox Ceph mesh network playbook

proxmox/templates/ceph.interfaces.j2

@@ -0,0 +1,15 @@
+# {{ ansible_managed }}
+# ifupdown interfaces(5) file for setting up CEPH network
+
+# Real routing is handled by FRR routing daemon
+auto lo
+iface lo inet loopback
+    up ip -6 addr add {{ ceph_mesh.address }} dev lo
+
+{% for iface in ceph_mesh.interfaces %}
+auto {{ iface }}
+iface {{ iface }} inet6 static
+    pre-up ip link set $IFACE up
+    mtu 9000
+
+{% endfor %}