FIX: Unneded (extra) cycles in some tasks (#1393)

roles/etcd/tasks/sync_etcd_master_certs.yml

@@ -8,6 +8,7 @@
         "member-" + item + ".pem"
         ] }}
   with_items: "{{ groups.etcd }}"
+  run_once: true
 
 - include: ../../vault/tasks/shared/sync_file.yml
   vars: 
@@ -16,6 +17,7 @@
     sync_file_hosts: "{{ groups.etcd }}"
     sync_file_is_cert: true
   with_items: "{{ etcd_master_cert_list|d([]) }}"
+  run_once: true
 
 - name: sync_etcd_certs | Set facts for etcd sync_file results
   set_fact:
@@ -32,6 +34,7 @@
     sync_file: ca.pem
     sync_file_dir: "{{ etcd_cert_dir }}"
     sync_file_hosts: "{{ groups.etcd }}"
+  run_once: true
 
 - name: sync_etcd_certs | Unset sync_file_results after ca.pem sync
   set_fact:

roles/etcd/tasks/sync_etcd_node_certs.yml

@@ -4,6 +4,7 @@
   set_fact: 
     etcd_node_cert_list: "{{ etcd_node_cert_list|default([]) +  ['node-' + item + '.pem'] }}"
   with_items: "{{ etcd_node_cert_hosts }}"
+  run_once: true
 
 - include: ../../vault/tasks/shared/sync_file.yml
   vars: 
@@ -12,12 +13,14 @@
     sync_file_hosts: "{{ etcd_node_cert_hosts }}"
     sync_file_is_cert: true
   with_items: "{{ etcd_node_cert_list|d([]) }}"
+  run_once: true
 
 - name: sync_etcd_node_certs | Set facts for etcd sync_file results
   set_fact:
     etcd_node_certs_needed: "{{ etcd_node_certs_needed|default([]) + [item.path] }}"
   with_items: "{{ sync_file_results|d([]) }}"
   when: item.no_srcs|bool
+  run_once: true
 
 - name: sync_etcd_node_certs | Unset sync_file_results after etcd node certs
   set_fact:
@@ -28,6 +31,7 @@
     sync_file: ca.pem
     sync_file_dir: "{{ etcd_cert_dir }}"
     sync_file_hosts: "{{ etcd_node_cert_hosts }}"
+  run_once: true
 
 - name: sync_etcd_node_certs | Unset sync_file_results after ca.pem
   set_fact: