From 6e51b23e8681e224087203aa75fedd0f8ca50a59 Mon Sep 17 00:00:00 2001
From: "Joshua M. Boniface" <joshua@boniface.me>
Date: Tue, 18 Jun 2019 13:07:53 -0400
Subject: [PATCH] Make restart hander for pvcd sequential

---
 roles/pvc/handlers/main.yml | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/roles/pvc/handlers/main.yml b/roles/pvc/handlers/main.yml
index 0a59472..50eba47 100644
--- a/roles/pvc/handlers/main.yml
+++ b/roles/pvc/handlers/main.yml
@@ -19,7 +19,13 @@
     name: patroni
     state: restarted
 
+# Restart pvcd, but sequentially one-host-at-a-time with a 15s wait in between; this provides
+# plenty of time for the primary state to switch around without putting the cluster in a
+# no-primary state
 - name: restart pvcd
-  service:
-    name: pvcd
-    state: restarted
+  shell: systemctl restart pvcd && sleep 15
+  run_once: true
+  delegate_to: "{{ play_host }}"
+  with_items: "{{ play_hosts }}"
+  loop_control:
+    loop_var: play_host