Move set_facts to kubespray-defaults defaults

These facts can be generated in defaults with a performance
boost.

Also cleaned up duplicate etcd var names.

roles/network_plugin/canal/templates/calicoctl-container.j2

@@ -1,7 +1,7 @@
 #!/bin/bash
 {{ docker_bin_dir }}/docker run -i --privileged --rm \
 --net=host --pid=host \
--e ETCD_ENDPOINTS={{ etcd_access_endpoint }} \
+-e ETCD_ENDPOINTS={{ etcd_access_addresses }} \
 -e ETCD_CA_CERT_FILE={{ canal_cert_dir }}/ca_cert.crt \
 -e ETCD_CERT_FILE={{ canal_cert_dir }}/cert.crt \
 -e ETCD_KEY_FILE={{ canal_cert_dir }}/key.pem \

roles/network_plugin/canal/templates/canal-config.yaml.j2

@@ -7,7 +7,7 @@ metadata:
   name: canal-config
 data:
   # Configure this with the location of your etcd cluster.
-  etcd_endpoints: "{{ etcd_access_endpoint }}"
+  etcd_endpoints: "{{ etcd_access_addresses }}"
 
   # The interface used by canal for host <-> host communication.
   # If left blank, then the interface is chosing using the node's

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

@@ -3,7 +3,7 @@
   "type": "flannel",
   "delegate": {
     "type": "calico",
-    "etcd_endpoints": "{{ etcd_access_endpoint }}",
+    "etcd_endpoints": "{{ etcd_access_addresses }}",
     "log_level": "info",
     "policy": {
       "type": "k8s"