Calico: fix peering with routers for new version

In new `calicoctl` version nodes peering with routers is broken.
We need to use predictable node names for calico-node and the
same names in calico `bgpPeer` resources and CNI.

roles/network_plugin/calico/templates/calico-node.service.j2

@@ -8,6 +8,7 @@ EnvironmentFile=/etc/calico/calico.env
 ExecStartPre=-/usr/bin/docker rm -f calico-node
 ExecStart=/usr/bin/docker run --net=host --privileged \
  --name=calico-node \
+ -e HOSTNAME=${CALICO_HOSTNAME} \
  -e IP=${CALICO_IP} \
  -e IP6=${CALICO_IP6} \
  -e CALICO_NETWORKING_BACKEND=${CALICO_NETWORKING_BACKEND} \

roles/network_plugin/calico/templates/calico.env.j2

@@ -12,3 +12,4 @@ CALICO_AS="{{ local_as }}"
 {% endif %}
 CALICO_NO_DEFAULT_POOLS="true"
 CALICO_LIBNETWORK_ENABLED="true"
+CALICO_HOSTNAME="{{ inventory_hostname }}"

roles/network_plugin/calico/templates/cni-calico.conf.j2

@@ -1,5 +1,6 @@
 {
   "name": "calico-k8s-network",
+  "hostname": "{{ inventory_hostname }}",
   "type": "calico",
   "etcd_endpoints": "{{ etcd_access_endpoint }}",
   "etcd_cert_file": "{{ etcd_cert_dir }}/node.pem",