feat: add frr_exporter class (#369)

- add frr exporter to all nodes running frr

Reviewed-on: #369

hieradata/roles/infra/k8s/node.yaml

@@ -4,6 +4,7 @@ hiera_include:
   - frrouting
   - profiles::ceph::node
   - profiles::ceph::client
+  - exporters::frr_exporter
 
 # FIXME: puppet-python wants to try manage python-dev, which is required by the ceph package
 python::manage_dev_package: false
@@ -90,7 +91,14 @@ networking::interfaces:
     netmask: 255.255.255.255
     mtu: 1500
 
+# consul
+profiles::consul::client::node_rules:
+  - resource: service
+    segment: frr_exporter
+    disposition: write
+
 # frrouting
+exporters::frr_exporter::enable: true
 frrouting::ospfd_router_id: "%{hiera('networking_loopback0_ip')}"
 frrouting::ospfd_redistribute:
   - connected