add BGP interface (#16)

README.md

@@ -137,6 +137,7 @@ List of Interface Layers
 | [barbican-hsm](https://github.com/openstack/charm-interface-barbican-hsm) | barbican-hsm | Interface supporting the integration between Barbican and HSM devices |
 | [basic-auth-check](https://github.com/CanonicalLtd/juju-interface-basic-auth-check) | basic-auth-check | Interface for the basic-auth-service to validate HTTP Basic-Auth credentials |
 | [benchmark](https://github.com/juju-solutions/interface-benchmark.git) | benchmark | Interface layer for the benchmark protocol |
+| [bgp](https://github.com/openstack-charmers/charm-interface-bgp.git) | bgp | Interface layer for exchanging BGP neighbour information between charms |
 | [bind-rndc](https://github.com/openstack/charm-interface-bind-rndc) | BIND RNDC interface | BIND RNDC interface |
 | [ceph-admin](https://github.com/cholcombe973/juju-interface-ceph-admin) | ceph-admin | The admin interface for ceph will provide the user with the ceph admin key |
 | [ceph-base](https://github.com/openstack/charm-layer-ceph-base) | Ceph Base Layer | Ceph base layer |

interfaces/bgp.json

@@ -0,0 +1,6 @@
+{
+  "id": "bgp",
+  "name": "bgp",
+  "repo": "https://github.com/openstack-charmers/charm-interface-bgp.git",
+  "summary": "Interface layer for exchanging BGP neighbour information between charms"
+}