feat: add frr_exporter class (#369)

- add frr exporter to all nodes running frr

Reviewed-on: #369

hieradata/roles/infra/halb/haproxy2.yaml

@@ -2,6 +2,7 @@
 hiera_include:
   - frrouting
   - profiles::haproxy::server
+  - exporters::frr_exporter
 
 # networking
 anycast_ip: 198.18.19.17
@@ -19,6 +20,7 @@ networking::interfaces:
     mtu: 1500
 
 # frrouting
+exporters::frr_exporter::enable: true
 frrouting::ospfd_router_id: "%{facts.networking.ip}"
 frrouting::ospfd_redistribute:
   - connected
@@ -69,6 +71,9 @@ profiles::consul::client::node_rules:
   - resource: service
     segment: haproxy-metrics
     disposition: write
+  - resource: service
+    segment: frr_exporter
+    disposition: write
 
 # haproxy
 profiles::haproxy::peers::enable: true