set calico_datastore default value in role kubespray-default (#5259)

roles/kubernetes-apps/policy_controller/calico/defaults/main.yml

@@ -8,6 +8,3 @@ calico_policy_controller_memory_requests: 64M
 # SSL
 calico_cert_dir: "/etc/calico/certs"
 canal_cert_dir: "/etc/canal/certs"
-
-# Datastore type
-calico_datastore: "etcd"

roles/kubespray-defaults/defaults/main.yaml

@@ -144,6 +144,9 @@ peer_with_calico_rr: "{{ 'calico-rr' in groups and groups['calico-rr']|length >
 # Set to false to disable calico-upgrade
 calico_upgrade_enabled: true
 
+# Choose data store type for calico: "etcd" or "kdd" (kubernetes datastore)
+calico_datastore: "etcd"
+
 # Kubernetes internal network for services, unused block of space.
 kube_service_addresses: 10.233.0.0/18
 

roles/network_plugin/calico/defaults/main.yml

@@ -67,7 +67,8 @@ kube_etcd_cert_file: node-{{ inventory_hostname }}.pem
 kube_etcd_key_file: node-{{ inventory_hostname }}-key.pem
 
 # Choose data store type for calico: "etcd" or "kdd" (kubernetes datastore)
-calico_datastore: "etcd"
+# The default value calico_datastore: "etcd" is set in role kubespray-default
+
 # Use typha (only with kdd)
 typha_enabled: false
 # Number of typha replicas