Define local volume provisioner dirs in defaults (#2656)

roles/kubespray-defaults/defaults/main.yaml

@@ -219,6 +219,10 @@ vault_config_dir: "{{ vault_base_dir }}/config"
 vault_roles_dir: "{{ vault_base_dir }}/roles"
 vault_secrets_dir: "{{ vault_base_dir }}/secrets"
 
+# Local volume provisioner dirs
+local_volume_provisioner_base_dir: /mnt/disks
+local_volume_provisioner_mount_dir: /mnt/disks
+
 ## Running on top of openstack vms with cinder enabled may lead to unschedulable pods due to NoVolumeZoneConflict restriction in kube-scheduler.
 ## See https://github.com/kubernetes-incubator/kubespray/issues/2141
 ## Set this variable to true to get rid of this issue