From 18c999731ef48089e516e7adfc4b89ca8dcc29b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carlos=20Leo=CC=81n?= <mail@carlosleon.info>
Date: Fri, 20 Jan 2017 16:38:35 +0100
Subject: [PATCH] Add support for changing Docker's storage driver

---
 defaults/main.yml    | 1 +
 files/docker.service | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/defaults/main.yml b/defaults/main.yml
index c5e9911..dc42868 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -3,3 +3,4 @@ consul_ip: 127.0.0.1
 docker_clusterstore: no
 dockerpy: no
 vagrant: no
+docker_storagedriver: devicemapper
diff --git a/files/docker.service b/files/docker.service
index 0f938ef..230c16a 100644
--- a/files/docker.service
+++ b/files/docker.service
@@ -8,7 +8,7 @@ Type=notify
 # the default is not to use systemd for cgroups because the delegate issues still
 # exists and systemd currently does not support the cgroup feature set required
 # for containers run by docker
-ExecStart=/usr/bin/docker daemon -H unix:///var/run/docker.sock
+ExecStart=/usr/bin/docker daemon -H unix:///var/run/docker.sock -s {{ docker_storagedriver }}
 ExecReload=/bin/kill -s HUP $MAINPID
 LimitNOFILE=1048576
 LimitNPROC=1048576