Copy ca-key.pem to etcd and kube-masters accordingly

roles/vault/tasks/bootstrap/main.yml

@@ -57,6 +57,7 @@
     gen_ca_mount_path: "{{ vault_pki_mounts.etcd.name }}"
     gen_ca_vault_headers: "{{ vault_headers }}"
     gen_ca_vault_options: "{{ vault_ca_options.etcd }}"
+    gen_ca_copy_group: "etcd"
   when: inventory_hostname in groups.etcd and vault_etcd_ca_cert_needed
 
 - import_tasks: gen_vault_certs.yml