From 4ec27e687422ba3e9840b998987c73e1758fc1d3 Mon Sep 17 00:00:00 2001
From: Major Hayden <major@mhtx.net>
Date: Thu, 17 Aug 2017 11:42:31 -0500
Subject: [PATCH] Add automatic restart for memcached

This patch ensures that systemd will restart memcached in case of
failure or if the process is manually killed.

Closes-Bug: 1659954
Change-Id: I6782320bf429cde17dff00401e7f136cfc979cee
---
 tasks/memcached_config.yml                   | 8 ++++++++
 templates/systemd-restart-on-failure.conf.j2 | 4 ++++
 2 files changed, 12 insertions(+)
 create mode 100644 templates/systemd-restart-on-failure.conf.j2

diff --git a/tasks/memcached_config.yml b/tasks/memcached_config.yml
index 7f7e71e..fab9e11 100644
--- a/tasks/memcached_config.yml
+++ b/tasks/memcached_config.yml
@@ -71,6 +71,14 @@
     - ansible_service_mgr == 'systemd'
   notify: Restart memcached
 
+- name: Add automatic restart on failure
+  template:
+    src: systemd-restart-on-failure.conf.j2
+    dest: "/etc/systemd/system/memcached.service.d/systemd-restart-on-failure.conf"
+  when:
+    - ansible_service_mgr == 'systemd'
+  notify: Restart memcached
+
 - name: Apply resource limits (systemd)
   template:
     src: "limits.conf.j2"
diff --git a/templates/systemd-restart-on-failure.conf.j2 b/templates/systemd-restart-on-failure.conf.j2
new file mode 100644
index 0000000..8acdc0f
--- /dev/null
+++ b/templates/systemd-restart-on-failure.conf.j2
@@ -0,0 +1,4 @@
+# {{ ansible_managed }}
+[Service]
+Restart=on-failure
+RestartSec=2