From 7f9f052be4c6492bb7508ed1efab9aac512b2ffd Mon Sep 17 00:00:00 2001
From: Joseph Benden <joe@benden.us>
Date: Sat, 5 Aug 2017 14:46:58 -0700
Subject: [PATCH] Ubuntu 16.04 LTS requires `dmsetup` for Docker to install

Docker may hang during installation when the `dmsetup` package
is not installed on Ubuntu 16.04. For more information, see the
Docker bug report docker/docker#23347
---
 tasks/setup-Debian.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tasks/setup-Debian.yml b/tasks/setup-Debian.yml
index 4b2cf31..acd1adf 100644
--- a/tasks/setup-Debian.yml
+++ b/tasks/setup-Debian.yml
@@ -16,6 +16,18 @@
     - apt-transport-https
     - ca-certificates
 
+# Fix for https://github.com/docker/docker/issues/23347
+- name: Install dmsetup for Ubuntu 16.04
+  apt:
+    pkg: dmsetup
+    state: present
+  register: dmsetup_result
+  when: ansible_distribution_version|version_compare('16.04', '=')
+
+- name: Run dmsetup for Ubuntu 16.04
+  command: dmsetup mknodes
+  when: dmsetup_result.changed
+
 - name: Add Docker apt key.
   apt_key:
     url: https://download.docker.com/linux/ubuntu/gpg